2.59

fix https://github.com/chrislusf/seaweedfs/issues/2195

README.md

@@ -3,10 +3,10 @@
 
 [![Slack](https://img.shields.io/badge/slack-purple)](https://join.slack.com/t/seaweedfs/shared_invite/enQtMzI4MTMwMjU2MzA3LTEyYzZmZWYzOGQ3MDJlZWMzYmI0OTE4OTJiZjJjODBmMzUxNmYwODg0YjY3MTNlMjBmZDQ1NzQ5NDJhZWI2ZmY)
 [![Twitter](https://img.shields.io/twitter/follow/seaweedfs.svg?style=social&label=Follow)](https://twitter.com/intent/follow?screen_name=seaweedfs)
-[![Build Status](https://travis-ci.org/chrislusf/seaweedfs.svg?branch=master)](https://travis-ci.org/chrislusf/seaweedfs)
+[![Build Status](https://travis-ci.com/chrislusf/seaweedfs.svg?branch=master)](https://travis-ci.com/chrislusf/seaweedfs)
 [![GoDoc](https://godoc.org/github.com/chrislusf/seaweedfs/weed?status.svg)](https://godoc.org/github.com/chrislusf/seaweedfs/weed)
 [![Wiki](https://img.shields.io/badge/docs-wiki-blue.svg)](https://github.com/chrislusf/seaweedfs/wiki)
-[![Docker Pulls](https://img.shields.io/docker/pulls/chrislusf/seaweedfs.svg?maxAge=4800)](https://hub.docker.com/r/chrislusf/seaweedfs/)
+[![Docker Pulls](https://img.shields.io/docker/pulls/chrislusf/seaweedfs?maxAge=4800)](https://hub.docker.com/r/chrislusf/seaweedfs/)
 [![SeaweedFS on Maven Central](https://img.shields.io/maven-central/v/com.github.chrislusf/seaweedfs-client)](https://search.maven.org/search?q=g:com.github.chrislusf)
 
 
@@ -44,7 +44,8 @@ Your support will be really appreciated by me and other supporters!
 - [SeaweedFS Mailing List](https://groups.google.com/d/forum/seaweedfs)
 - [Wiki Documentation](https://github.com/chrislusf/seaweedfs/wiki)
 - [SeaweedFS White Paper](https://github.com/chrislusf/seaweedfs/wiki/SeaweedFS_Architecture.pdf)
-- [SeaweedFS Introduction Slides](https://www.slideshare.net/chrislusf/seaweedfs-introduction)
+- [SeaweedFS Introduction Slides 2021.5](https://docs.google.com/presentation/d/1DcxKWlINc-HNCjhYeERkpGXXm6nTCES8mi2W5G0Z4Ts/edit?usp=sharing)
+- [SeaweedFS Introduction Slides 2019.3](https://www.slideshare.net/chrislusf/seaweedfs-introduction)
 
 Table of Contents
 =================
@@ -92,13 +93,6 @@ and these volume servers manage files and their metadata.
 This relieves concurrency pressure from the central master and spreads file metadata into volume servers, 
 allowing faster file access (O(1), usually just one disk read operation).
 
-SeaweedFS can transparently integrate with the cloud. 
-With hot data on local cluster, and warm data on the cloud with O(1) access time, 
-SeaweedFS can achieve both fast local access time and elastic cloud storage capacity. 
-What's more, the cloud storage access API cost is minimized. 
-Faster and Cheaper than direct cloud storage!
-Signup for future managed SeaweedFS cluster offering at "seaweedfilesystem at gmail dot com".
-
 There is only 40 bytes of disk storage overhead for each file's metadata. 
 It is so simple with O(1) disk reads that you are welcome to challenge the performance with your actual use cases.
 
@@ -108,12 +102,18 @@ Also, SeaweedFS implements erasure coding with ideas from
 
 On top of the object store, optional [Filer] can support directories and POSIX attributes. 
 Filer is a separate linearly-scalable stateless server with customizable metadata stores, 
-e.g., MySql, Postgres, Redis, Cassandra, HBase, Mongodb, Elastic Search, LevelDB, RocksDB, MemSql, TiDB, Etcd, CockroachDB, etc.
+e.g., MySql, Postgres, Redis, Cassandra, HBase, Mongodb, Elastic Search, LevelDB, RocksDB, Sqlite, MemSql, TiDB, Etcd, CockroachDB, etc.
 
 For any distributed key value stores, the large values can be offloaded to SeaweedFS. 
 With the fast access speed and linearly scalable capacity, 
 SeaweedFS can work as a distributed [Key-Large-Value store][KeyLargeValueStore].
 
+SeaweedFS can transparently integrate with the cloud. 
+With hot data on local cluster, and warm data on the cloud with O(1) access time, 
+SeaweedFS can achieve both fast local access time and elastic cloud storage capacity.
+What's more, the cloud storage access API cost is minimized. 
+Faster and Cheaper than direct cloud storage!
+
 [Back to TOC](#table-of-contents)
 
 ## Additional Features ##
@@ -399,7 +399,7 @@ The architectures are mostly the same. SeaweedFS aims to store and read files fa
 
 * SeaweedFS optimizes for small files, ensuring O(1) disk seek operation, and can also handle large files.
 * SeaweedFS statically assigns a volume id for a file. Locating file content becomes just a lookup of the volume id, which can be easily cached.
-* SeaweedFS Filer metadata store can be any well-known and proven data stores, e.g., Redis, Cassandra, HBase, Mongodb, Elastic Search, MySql, Postgres, MemSql, TiDB, CockroachDB, Etcd etc, and is easy to customized.
+* SeaweedFS Filer metadata store can be any well-known and proven data stores, e.g., Redis, Cassandra, HBase, Mongodb, Elastic Search, MySql, Postgres, Sqlite, MemSql, TiDB, CockroachDB, Etcd etc, and is easy to customized.
 * SeaweedFS Volume server also communicates directly with clients via HTTP, supporting range queries, direct uploads, etc.
 
 | System         | File Metadata                   | File Content Read| POSIX  | REST API | Optimized for large number of small files |
@@ -441,7 +441,7 @@ Ceph uses CRUSH hashing to automatically manage the data placement, which is eff
 
 SeaweedFS is optimized for small files. Small files are stored as one continuous block of content, with at most 8 unused bytes between files. Small file access is O(1) disk read.
 
-SeaweedFS Filer uses off-the-shelf stores, such as MySql, Postgres, Mongodb, Redis, Elastic Search, Cassandra, HBase, MemSql, TiDB, CockroachCB, Etcd, to manage file directories. These stores are proven, scalable, and easier to manage.
+SeaweedFS Filer uses off-the-shelf stores, such as MySql, Postgres, Sqlite, Mongodb, Redis, Elastic Search, Cassandra, HBase, MemSql, TiDB, CockroachCB, Etcd, to manage file directories. These stores are proven, scalable, and easier to manage.
 
 | SeaweedFS         | comparable to Ceph | advantage |
 | -------------  | ------------- | ---------------- |

docker/Makefile

@@ -25,6 +25,9 @@ dev_tls: build certstrap
 dev_mount: build
 	docker-compose -f compose/local-mount-compose.yml -p seaweedfs up
 
+run_image: build
+	docker run --rm -ti --device /dev/fuse --cap-add SYS_ADMIN --entrypoint /bin/sh chrislusf/seaweedfs:local
+
 profile_mount: build
 	docker-compose -f compose/local-mount-profile-compose.yml -p seaweedfs up
 

docker/compose/local-s3tests-compose.yml

@@ -38,7 +38,7 @@ services:
       S3TEST_CONF: "s3tests.conf"
       NOSETESTS_OPTIONS: "--verbose --logging-level=ERROR --with-xunit --failure-detail s3tests_boto3.functional.test_s3"
       NOSETESTS_ATTR: "!tagging,!fails_on_aws,!encryption,!bucket-policy,!versioning,!fails_on_rgw,!bucket-policy,!fails_with_subdomain,!policy_status,!object-lock,!lifecycle,!cors,!user-policy"
-      NOSETESTS_EXCLUDE: "(bucket_list_delimiter_basic|bucket_listv2_delimiter_basic|bucket_listv2_encoding_basic|bucket_list_encoding_basic|bucket_list_delimiter_prefix|bucket_listv2_delimiter_prefix_ends_with_delimiter|bucket_list_delimiter_prefix_ends_with_delimiter|bucket_list_delimiter_alt|bucket_listv2_delimiter_alt|bucket_list_delimiter_prefix_underscore|bucket_list_delimiter_percentage|bucket_listv2_delimiter_percentage|bucket_list_delimiter_whitespace|bucket_listv2_delimiter_whitespace|bucket_list_delimiter_dot|bucket_listv2_delimiter_dot|bucket_list_delimiter_unreadable|bucket_listv2_delimiter_unreadable|bucket_listv2_fetchowner_defaultempty|bucket_listv2_fetchowner_empty|bucket_list_prefix_delimiter_alt|bucket_listv2_prefix_delimiter_alt|bucket_list_prefix_delimiter_prefix_not_exist|bucket_listv2_prefix_delimiter_prefix_not_exist|bucket_list_prefix_delimiter_delimiter_not_exist|bucket_listv2_prefix_delimiter_delimiter_not_exist|bucket_list_prefix_delimiter_prefix_delimiter_not_exist|bucket_listv2_prefix_delimiter_prefix_delimiter_not_exist|bucket_list_maxkeys_none|bucket_listv2_maxkeys_none|bucket_list_maxkeys_invalid|bucket_listv2_continuationtoken_empty|bucket_list_return_data|bucket_list_objects_anonymous|bucket_listv2_objects_anonymous|bucket_notexist|bucketv2_notexist|bucket_delete_nonempty|bucket_concurrent_set_canned_acl|object_write_to_nonexist_bucket|object_requestid_matches_header_on_error|object_write_cache_control|object_write_expires|object_set_get_metadata_none_to_good|object_set_get_metadata_none_to_empty|object_set_get_metadata_overwrite_to_empty|post_object_anonymous_request|post_object_authenticated_request|post_object_authenticated_no_content_type|post_object_authenticated_request_bad_access_key|post_object_set_success_code|post_object_set_invalid_success_code|post_object_upload_larger_than_chunk|post_object_set_key_from_filename|post_object_ignored_header|post_object_case_insensitive_condition_fields|post_object_escaped_field_values|post_object_success_redirect_action|post_object_invalid_signature|post_object_invalid_access_key|post_object_missing_policy_condition|post_object_user_specified_header|post_object_request_missing_policy_specified_field|post_object_expired_policy|post_object_invalid_request_field_value|get_object_ifmatch_failed|get_object_ifunmodifiedsince_good|put_object_ifmatch_failed|object_raw_get_bucket_gone|object_delete_key_bucket_gone|object_raw_get_bucket_acl|object_raw_get_object_acl|object_raw_response_headers|object_raw_authenticated_bucket_gone|object_raw_get_x_amz_expires_out_max_range|object_raw_get_x_amz_expires_out_positive_range|object_anon_put_write_access|object_raw_put_authenticated_expired|bucket_create_exists|bucket_create_naming_bad_short_one|bucket_create_naming_bad_short_two|bucket_get_location|bucket_acl_default|bucket_acl_canned|bucket_acl_canned_publicreadwrite|bucket_acl_canned_authenticatedread|object_acl_default|object_acl_canned_during_create|object_acl_canned|object_acl_canned_publicreadwrite|object_acl_canned_authenticatedread|object_acl_canned_bucketownerread|object_acl_canned_bucketownerfullcontrol|object_acl_full_control_verify_attributes|bucket_acl_canned_private_to_private|bucket_acl_grant_nonexist_user|bucket_acl_no_grants|bucket_acl_grant_email_not_exist|bucket_acl_revoke_all|bucket_recreate_not_overriding|object_copy_verify_contenttype|object_copy_to_itself_with_metadata|object_copy_not_owned_bucket|object_copy_not_owned_object_bucket|object_copy_retaining_metadata|object_copy_replacing_metadata|multipart_upload_empty|multipart_copy_invalid_range|multipart_copy_special_names|multipart_upload_resend_part|multipart_upload_size_too_small|abort_multipart_upload_not_found|multipart_upload_missing_part|multipart_upload_incorrect_etag|100_continue|ranged_request_invalid_range|ranged_request_empty_object|access_bucket)"
+      NOSETESTS_EXCLUDE: "(bucket_list_delimiter_basic|bucket_listv2_delimiter_basic|bucket_listv2_encoding_basic|bucket_list_encoding_basic|bucket_list_delimiter_prefix|bucket_listv2_delimiter_prefix_ends_with_delimiter|bucket_list_delimiter_prefix_ends_with_delimiter|bucket_list_delimiter_alt|bucket_listv2_delimiter_alt|bucket_list_delimiter_prefix_underscore|bucket_list_delimiter_percentage|bucket_listv2_delimiter_percentage|bucket_list_delimiter_whitespace|bucket_listv2_delimiter_whitespace|bucket_list_delimiter_dot|bucket_listv2_delimiter_dot|bucket_list_delimiter_unreadable|bucket_listv2_delimiter_unreadable|bucket_listv2_fetchowner_defaultempty|bucket_listv2_fetchowner_empty|bucket_list_prefix_delimiter_alt|bucket_listv2_prefix_delimiter_alt|bucket_list_prefix_delimiter_prefix_not_exist|bucket_listv2_prefix_delimiter_prefix_not_exist|bucket_list_prefix_delimiter_delimiter_not_exist|bucket_listv2_prefix_delimiter_delimiter_not_exist|bucket_list_prefix_delimiter_prefix_delimiter_not_exist|bucket_listv2_prefix_delimiter_prefix_delimiter_not_exist|bucket_list_maxkeys_none|bucket_listv2_maxkeys_none|bucket_list_maxkeys_invalid|bucket_listv2_continuationtoken_empty|bucket_list_return_data|bucket_list_objects_anonymous|bucket_listv2_objects_anonymous|bucket_notexist|bucketv2_notexist|bucket_delete_nonempty|bucket_concurrent_set_canned_acl|object_write_to_nonexist_bucket|object_requestid_matches_header_on_error|object_set_get_metadata_none_to_good|object_set_get_metadata_none_to_empty|object_set_get_metadata_overwrite_to_empty|post_object_anonymous_request|post_object_authenticated_request|post_object_authenticated_no_content_type|post_object_authenticated_request_bad_access_key|post_object_set_success_code|post_object_set_invalid_success_code|post_object_upload_larger_than_chunk|post_object_set_key_from_filename|post_object_ignored_header|post_object_case_insensitive_condition_fields|post_object_escaped_field_values|post_object_success_redirect_action|post_object_invalid_signature|post_object_invalid_access_key|post_object_missing_policy_condition|post_object_user_specified_header|post_object_request_missing_policy_specified_field|post_object_expired_policy|post_object_invalid_request_field_value|get_object_ifunmodifiedsince_good|put_object_ifmatch_failed|object_raw_get_bucket_gone|object_delete_key_bucket_gone|object_raw_get_bucket_acl|object_raw_get_object_acl|object_raw_response_headers|object_raw_authenticated_bucket_gone|object_raw_get_x_amz_expires_out_max_range|object_raw_get_x_amz_expires_out_positive_range|object_anon_put_write_access|object_raw_put_authenticated_expired|bucket_create_exists|bucket_create_naming_bad_short_one|bucket_create_naming_bad_short_two|bucket_get_location|bucket_acl_default|bucket_acl_canned|bucket_acl_canned_publicreadwrite|bucket_acl_canned_authenticatedread|object_acl_default|object_acl_canned_during_create|object_acl_canned|object_acl_canned_publicreadwrite|object_acl_canned_authenticatedread|object_acl_canned_bucketownerread|object_acl_canned_bucketownerfullcontrol|object_acl_full_control_verify_attributes|bucket_acl_canned_private_to_private|bucket_acl_grant_nonexist_user|bucket_acl_no_grants|bucket_acl_grant_email_not_exist|bucket_acl_revoke_all|bucket_recreate_not_overriding|object_copy_verify_contenttype|object_copy_to_itself_with_metadata|object_copy_not_owned_bucket|object_copy_not_owned_object_bucket|object_copy_retaining_metadata|object_copy_replacing_metadata|multipart_upload_empty|multipart_copy_invalid_range|multipart_copy_special_names|multipart_upload_resend_part|multipart_upload_size_too_small|abort_multipart_upload_not_found|multipart_upload_missing_part|multipart_upload_incorrect_etag|100_continue|ranged_request_invalid_range|ranged_request_empty_object|access_bucket)"
     depends_on:
       - master
       - volume

go.mod

@@ -3,11 +3,8 @@ module github.com/chrislusf/seaweedfs
 go 1.16
 
 require (
-	cloud.google.com/go v0.58.0 // indirect
 	cloud.google.com/go/pubsub v1.3.1
 	cloud.google.com/go/storage v1.9.0
-	github.com/Azure/azure-amqp-common-go/v2 v2.1.0 // indirect
-	github.com/Azure/azure-pipeline-go v0.2.2 // indirect
 	github.com/Azure/azure-storage-blob-go v0.9.0
 	github.com/OneOfOne/xxhash v1.2.2
 	github.com/Shopify/sarama v1.23.1
@@ -34,17 +31,16 @@ require (
 	github.com/gocql/gocql v0.0.0-20190829130954-e163eff7a8c6
 	github.com/gogo/protobuf v1.2.2-0.20190730201129-28a6bbf47e48 // indirect
 	github.com/golang/groupcache v0.0.0-20200121045136-8c9f03a8e57e
-	github.com/golang/protobuf v1.4.2
+	github.com/golang/protobuf v1.4.3
 	github.com/google/btree v1.0.0
 	github.com/google/uuid v1.1.1
 	github.com/gorilla/mux v1.7.4
 	github.com/gorilla/websocket v1.4.1 // indirect
-	github.com/grpc-ecosystem/go-grpc-middleware v1.0.1-0.20190118093823-f849b5445de4 // indirect
+	github.com/grpc-ecosystem/go-grpc-middleware v1.0.1-0.20190118093823-f849b5445de4
 	github.com/grpc-ecosystem/grpc-gateway v1.11.0 // indirect
 	github.com/jcmturner/gofork v1.0.0 // indirect
 	github.com/jinzhu/copier v0.2.8
-	github.com/json-iterator/go v1.1.10
-	github.com/karlseguin/ccache v2.0.3+incompatible // indirect
+	github.com/json-iterator/go v1.1.11
 	github.com/karlseguin/ccache/v2 v2.0.7
 	github.com/klauspost/compress v1.10.9 // indirect
 	github.com/klauspost/cpuid v1.2.1 // indirect
@@ -52,16 +48,15 @@ require (
 	github.com/klauspost/reedsolomon v1.9.2
 	github.com/kurin/blazer v0.5.3
 	github.com/lib/pq v1.10.0
-	github.com/lunixbochs/vtclean v1.0.0 // indirect
 	github.com/magiconair/properties v1.8.1 // indirect
-	github.com/mattn/go-colorable v0.1.2 // indirect
 	github.com/mattn/go-runewidth v0.0.4 // indirect
 	github.com/olivere/elastic/v7 v7.0.19
 	github.com/peterh/liner v1.1.0
 	github.com/pierrec/lz4 v2.2.7+incompatible // indirect
-	github.com/prometheus/client_golang v1.3.0
+	github.com/pquerna/cachecontrol v0.1.0
+	github.com/prometheus/client_golang v1.11.0
 	github.com/rcrowley/go-metrics v0.0.0-20190826022208-cac0b30c2563 // indirect
-	github.com/seaweedfs/fuse v1.1.6
+	github.com/seaweedfs/fuse v1.1.8
 	github.com/seaweedfs/goexif v1.0.2
 	github.com/skip2/go-qrcode v0.0.0-20200617195104-da1b6568686e
 	github.com/spaolacci/murmur3 v1.1.0 // indirect
@@ -80,7 +75,6 @@ require (
 	github.com/viant/toolbox v0.33.2 // indirect
 	github.com/willf/bitset v1.1.10 // indirect
 	github.com/willf/bloom v2.0.3+incompatible
-	github.com/wsxiaoys/terminal v0.0.0-20160513160801-0940f3fc43a0 // indirect
 	go.etcd.io/etcd v3.3.15+incompatible
 	go.mongodb.org/mongo-driver v1.3.2
 	gocloud.dev v0.20.0
@@ -88,16 +82,14 @@ require (
 	gocloud.dev/pubsub/rabbitpubsub v0.20.0
 	golang.org/x/image v0.0.0-20200119044424-58c23975cae1 // indirect
 	golang.org/x/net v0.0.0-20201202161906-c7110b5ffcbb
-	golang.org/x/sync v0.0.0-20200930132711-30421366ff76 // indirect
-	golang.org/x/sys v0.0.0-20201022201747-fb209a7c41cd
-	golang.org/x/tools v0.0.0-20200608174601-1b747fd94509
+	golang.org/x/sys v0.0.0-20210603081109-ebe580a85c40
+	golang.org/x/tools v0.0.0-20201124115921-2c860bdd6e78
 	google.golang.org/api v0.26.0
 	google.golang.org/grpc v1.29.1
-	google.golang.org/protobuf v1.24.0
-	gopkg.in/check.v1 v1.0.0-20190902080502-41f04d3bba15 // indirect
+	google.golang.org/protobuf v1.26.0-rc.1
 	gopkg.in/jcmturner/goidentity.v3 v3.0.0 // indirect
 	gopkg.in/jcmturner/gokrb5.v7 v7.3.0 // indirect
-	gopkg.in/karlseguin/expect.v1 v1.0.1 // indirect
+	modernc.org/sqlite v1.10.7
 )
 
 // replace github.com/seaweedfs/fuse => /Users/chris/go/src/github.com/seaweedfs/fuse

go.sum

@@ -5,7 +5,6 @@ cloud.google.com/go v0.38.0/go.mod h1:990N+gfupTy94rShfmMCWGDn0LpTmnzTp2qbd1dvSR
 cloud.google.com/go v0.39.0/go.mod h1:rVLT6fkc8chs9sfPtFc1SBH6em7n+ZoXaG+87tDISts=
 cloud.google.com/go v0.44.1/go.mod h1:iSa0KzasP4Uvy3f1mN/7PiObzGgflwredwwASm/v6AU=
 cloud.google.com/go v0.44.2/go.mod h1:60680Gw3Yr4ikxnPRS/oxxkBccT6SA1yMk63TGekxKY=
-cloud.google.com/go v0.44.3 h1:0sMegbmn/8uTwpNkB0q9cLEpZ2W5a6kl+wtBQgPWBJQ=
 cloud.google.com/go v0.44.3/go.mod h1:60680Gw3Yr4ikxnPRS/oxxkBccT6SA1yMk63TGekxKY=
 cloud.google.com/go v0.45.1/go.mod h1:RpBamKRgapWJb87xiFSdk4g1CME7QZg3uwTez+TSTjc=
 cloud.google.com/go v0.46.3/go.mod h1:a6bKKbmY7er1mI7TEI4lsAkts/mkhTSZK8w33B4RAg0=
@@ -41,34 +40,20 @@ cloud.google.com/go/storage v1.8.0/go.mod h1:Wv1Oy7z6Yz3DshWRJFhqM/UCfaWIRTdp0RX
 cloud.google.com/go/storage v1.9.0 h1:oXnZyBjHB6hC8TnSle0AWW6pGJ29EuSo5ww+SFmdNBg=
 cloud.google.com/go/storage v1.9.0/go.mod h1:m+/etGaqZbylxaNT876QGXqEHp4PR2Rq5GMqICWb9bU=
 contrib.go.opencensus.io/exporter/aws v0.0.0-20181029163544-2befc13012d0/go.mod h1:uu1P0UCM/6RbsMrgPa98ll8ZcHM858i/AD06a9aLRCA=
-contrib.go.opencensus.io/exporter/ocagent v0.5.0 h1:TKXjQSRS0/cCDrP7KvkgU6SmILtF/yV2TOs/02K/WZQ=
-contrib.go.opencensus.io/exporter/ocagent v0.5.0/go.mod h1:ImxhfLRpxoYiSq891pBrLVhN+qmP8BTVvdH2YLs7Gl0=
 contrib.go.opencensus.io/exporter/stackdriver v0.12.1/go.mod h1:iwB6wGarfphGGe/e5CWqyUk/cLzKnWsOKPVW3no6OTw=
 contrib.go.opencensus.io/integrations/ocsql v0.1.4/go.mod h1:8DsSdjz3F+APR+0z0WkU1aRorQCFfRxvqjUUPMbF3fE=
 contrib.go.opencensus.io/resource v0.1.1/go.mod h1:F361eGI91LCmW1I/Saf+rX0+OFcigGlFvXwEGEnkRLA=
 dmitri.shuralyov.com/gpu/mtl v0.0.0-20190408044501-666a987793e9/go.mod h1:H6x//7gZCb22OMCxBHrMx7a5I7Hp++hsVxbQ4BYO7hU=
-github.com/Azure/azure-amqp-common-go/v2 v2.1.0/go.mod h1:R8rea+gJRuJR6QxTir/XuEd+YuKoUiazDC/N96FiDEU=
 github.com/Azure/azure-amqp-common-go/v3 v3.0.0/go.mod h1:SY08giD/XbhTz07tJdpw1SoxQXHPN30+DI3Z04SYqyg=
-github.com/Azure/azure-pipeline-go v0.1.8/go.mod h1:XA1kFWRVhSK+KNFiOhfv83Fv8L9achrP7OxIzeTn1Yg=
-github.com/Azure/azure-pipeline-go v0.1.9/go.mod h1:XA1kFWRVhSK+KNFiOhfv83Fv8L9achrP7OxIzeTn1Yg=
-github.com/Azure/azure-pipeline-go v0.2.1 h1:OLBdZJ3yvOn2MezlWvbrBMTEUQC72zAftRZOMdj5HYo=
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@@ -80,20 +65,22 @@ github.com/Azure/go-autorest/autorest/adal v0.8.3/go.mod h1:ZjhuQClTqx435SRJ2iMl
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@@ -109,8 +96,7 @@ github.com/alecthomas/template v0.0.0-20160405071501-a0175ee3bccc/go.mod h1:LOuy
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@@ -121,16 +107,13 @@ github.com/aryann/difflib v0.0.0-20170710044230-e206f873d14a/go.mod h1:DAHtR1m6l
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@@ -145,20 +128,12 @@ github.com/bwmarrin/snowflake v0.3.0 h1:xm67bEhkKh6ij1790JB83OujPR5CzNe8QuQqAgIS
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@@ -170,11 +145,8 @@ github.com/cncf/udpa/go v0.0.0-20191209042840-269d4d468f6f/go.mod h1:M8M6+tZqaGX
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@@ -182,7 +154,6 @@ github.com/coreos/go-systemd v0.0.0-20190321100706-95778dfbb74e h1:Wf6HqHfScWJN9
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@@ -201,7 +172,6 @@ github.com/disintegration/imaging v1.6.2/go.mod h1:44/5580QXChDfwIclfc/PCwrr44am
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@@ -228,18 +198,15 @@ github.com/facebookgo/subset v0.0.0-20200203212716-c811ad88dec4/go.mod h1:5tD+ne
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-github.com/ghodss/yaml v1.0.0 h1:wQHKEahhL6wmXdzwWG11gIVCkOv05bNOh+Rxn0yngAk=
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@@ -251,6 +218,7 @@ github.com/go-kit/kit v0.8.0/go.mod h1:xBxKIO96dXMWWy0MnWVtmwkA9/13aqxPnvrjFYMA2
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@@ -258,8 +226,6 @@ github.com/go-logfmt/logfmt v0.5.0/go.mod h1:wCYkCAKZfumFQihp8CzCvQ3paCTfi41vtzG
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-github.com/go-sql-driver/mysql v1.4.1 h1:g24URVg0OFbNUTx9qqY1IRZ9D9z3iPyi5zKhQZpNwpA=
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@@ -296,16 +262,12 @@ github.com/godbus/dbus/v5 v5.0.3/go.mod h1:xhWf0FNVPg57R7Z0UbKHbJfkEywrmjJnf7w5x
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-github.com/golang/glog v0.0.0-20160126235308-23def4e6c14b h1:VKtxabqXZkF25pY9ekfRL6a582T4P37/31XEstQ5p58=
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@@ -319,7 +281,6 @@ github.com/golang/mock v1.4.3 h1:GV+pQPG/EUUbkh47niozDcADz6go/dUwhVzdUQHIVRw=
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-github.com/golang/protobuf v1.3.2 h1:6nsPYzhq5kReh6QImI3k5qWzO4PEbvbIW2cwSfR/6xs=
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@@ -329,10 +290,10 @@ github.com/golang/protobuf v1.4.0-rc.1.0.20200221234624-67d41d38c208/go.mod h1:x
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@@ -341,17 +302,15 @@ github.com/google/btree v0.0.0-20180813153112-4030bb1f1f0c/go.mod h1:lNA+9X1NB3Z
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@@ -372,8 +331,6 @@ github.com/google/subcommands v1.0.1/go.mod h1:ZjhPrFU+Olkh9WazFPsl27BQ4UPiG37m3
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@@ -388,20 +345,15 @@ github.com/gorilla/mux v1.7.3/go.mod h1:1lud6UwP+6orDFRuTfBEV8e9/aOM/c4fVVCaMa2z
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@@ -423,7 +375,6 @@ github.com/hashicorp/go-uuid v1.0.1/go.mod h1:6SBZvOh/SIDV7/2o3Jml5SYk/TvGqwFJ/b
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@@ -431,22 +382,18 @@ github.com/hashicorp/logutils v1.0.0/go.mod h1:QIAnNjmIWmVIIkWDTG1z5v++HQmx9WQRO
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 github.com/spf13/cast v1.3.0/go.mod h1:Qx5cxh0v+4UWYiBimWS+eyWzqEqokIECu5etghLkUJE=
 github.com/spf13/cobra v0.0.3/go.mod h1:1l0Ry5zgKvJasoi3XT1TypsSe7PqH0Sj9dhYf7v3XqQ=
-github.com/spf13/jwalterweatherman v1.0.0 h1:XHEdyB+EcvlqZamSM4ZOMGlc93t6AcsBEu9Gc1vn7yk=
 github.com/spf13/jwalterweatherman v1.0.0/go.mod h1:cQK4TGJAtQXfYWX+Ddv3mKDzgVb68N+wFjFa4jdeBTo=
 github.com/spf13/jwalterweatherman v1.1.0 h1:ue6voC5bR5F8YxI5S67j9i582FU4Qvo2bmqnqMYADFk=
 github.com/spf13/jwalterweatherman v1.1.0/go.mod h1:aNWZUN0dPAAO/Ljvb5BEdw96iTZ0EXowPYD95IqWIGo=
@@ -743,24 +658,18 @@ github.com/spf13/pflag v1.0.3 h1:zPAT6CGy6wXeQ7NtTnaTerfKOsV6V6F8agHXFiazDkg=
 github.com/spf13/pflag v1.0.3/go.mod h1:DYY7MBk1bdzusC3SYhjObp+wFpr4gzcvqqNjLnInEg4=
 github.com/spf13/viper v1.4.0 h1:yXHLWeravcrgGyFSyCgdYpXQ9dR9c/WED3pg1RhxqEU=
 github.com/spf13/viper v1.4.0/go.mod h1:PTJ7Z/lr49W6bUbkmS1V3by4uWynFiR9p7+dSq/yZzE=
-github.com/streadway/amqp v0.0.0-20190404075320-75d898a42a94 h1:0ngsPmuP6XIjiFRNFYlvKwSr5zff2v+uPHaffZ6/M4k=
 github.com/streadway/amqp v0.0.0-20190404075320-75d898a42a94/go.mod h1:AZpEONHx3DKn8O/DFsRAY58/XVQiIPMTMB1SddzLXVw=
-github.com/streadway/amqp v0.0.0-20190827072141-edfb9018d271 h1:WhxRHzgeVGETMlmVfqhRn8RIeeNoPr2Czh33I4Zdccw=
 github.com/streadway/amqp v0.0.0-20190827072141-edfb9018d271/go.mod h1:AZpEONHx3DKn8O/DFsRAY58/XVQiIPMTMB1SddzLXVw=
 github.com/streadway/amqp v0.0.0-20200108173154-1c71cc93ed71 h1:2MR0pKUzlP3SGgj5NYJe/zRYDwOu9ku6YHy+Iw7l5DM=
 github.com/streadway/amqp v0.0.0-20200108173154-1c71cc93ed71/go.mod h1:AZpEONHx3DKn8O/DFsRAY58/XVQiIPMTMB1SddzLXVw=
 github.com/streadway/handy v0.0.0-20190108123426-d5acb3125c2a/go.mod h1:qNTQ5P5JnDBl6z3cMAg/SywNDC5ABu5ApDIw6lUbRmI=
 github.com/stretchr/objx v0.1.0/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
-github.com/stretchr/objx v0.1.1 h1:2vfRuCMp5sSVIDSqO8oNnWJq7mPa6KVP3iPIwFBuy8A=
 github.com/stretchr/objx v0.1.1/go.mod h1:HFkY916IF+rwdDfMAkV7OtwuqBVzrE8GR6GFx+wExME=
 github.com/stretchr/objx v0.2.0 h1:Hbg2NidpLE8veEBkEZTL3CvlkUIVzuU9jDplZO54c48=
 github.com/stretchr/objx v0.2.0/go.mod h1:qt09Ya8vawLte6SNmTgCsAVtYtaKzEcn8ATUoHMkEqE=
 github.com/stretchr/testify v1.2.2/go.mod h1:a8OnRcib4nhh0OaRAV+Yts87kKdq0PP7pXfy6kDkUVs=
-github.com/stretchr/testify v1.3.0 h1:TivCn/peBQ7UY8ooIcPgZFpTNSz0Q2U6UrFlUfqbe0Q=
 github.com/stretchr/testify v1.3.0/go.mod h1:M5WIy9Dh21IEIfnGCwXGc5bZfKNJtfHm1UVUgZn+9EI=
-github.com/stretchr/testify v1.4.0 h1:2E4SXV/wtOkTonXsotYi4li6zVWxYlZuYNCXe9XRJyk=
 github.com/stretchr/testify v1.4.0/go.mod h1:j7eGeouHqKxXV5pUuKE4zz7dFj8WfuZ+81PSLYec5m4=
-github.com/stretchr/testify v1.5.1 h1:nOGnQDM7FYENwehXlg/kFVnos3rEvtKTjRvOWSzb6H4=
 github.com/stretchr/testify v1.5.1/go.mod h1:5W2xD1RspED5o8YsWQXVCued0rvSQ+mT+I5cxcmMvtA=
 github.com/stretchr/testify v1.6.1 h1:hDPOHmpOpP40lSULcqw7IrRb/u7w6RpDC9399XyoNd0=
 github.com/stretchr/testify v1.6.1/go.mod h1:6Fq8oRcR53rry900zMqJjRRixrwX3KX962/h/Wwjteg=
@@ -779,15 +688,11 @@ github.com/tmc/grpc-websocket-proxy v0.0.0-20190109142713-0ad062ec5ee5 h1:LnC5Kc
 github.com/tmc/grpc-websocket-proxy v0.0.0-20190109142713-0ad062ec5ee5/go.mod h1:ncp9v5uamzpCO7NfCPTXjqaC+bZgJeR0sMTm6dMHP7U=
 github.com/tsuna/gohbase v0.0.0-20201125011725-348991136365 h1:6iRwZdrFUzbcVYZwa8dXTIILGIxmmhjyUPJEcwzPGaU=
 github.com/tsuna/gohbase v0.0.0-20201125011725-348991136365/go.mod h1:zj0GJHGvyf1ed3Jm/Tb4830c/ZKDq+YoLsCt2rGQuT0=
-github.com/ugorji/go v1.1.4 h1:j4s+tAvLfL3bZyefP2SEWmhBzmuIlH/eqNuPdFPgngw=
 github.com/ugorji/go v1.1.4/go.mod h1:uQMGLiO92mf5W77hV/PUCpI3pbzQx3CRekS0kk+RGrc=
 github.com/urfave/cli v1.20.0/go.mod h1:70zkFmudgCuE/ngEzBv17Jvp/497gISqfk5gWijbERA=
 github.com/urfave/cli v1.22.1/go.mod h1:Gos4lmkARVdJ6EkW0WaNv/tZAAMe9V7XWyB60NtXRu0=
 github.com/valyala/bytebufferpool v1.0.0 h1:GqA5TC/0021Y/b9FG4Oi9Mr3q7XYx6KllzawFIhcdPw=
 github.com/valyala/bytebufferpool v1.0.0/go.mod h1:6bBcMArwyJ5K/AmCkWv1jt77kVWyCJ6HpOuEn7z0Csc=
-github.com/valyala/fasthttp v1.20.0 h1:olTmcnLQeZrkBc4TVgE/BatTo1NE/IvW050AuD8SW+U=
-github.com/valyala/fasthttp v1.20.0/go.mod h1:jjraHZVbKOXftJfsOYoAjaeygpj5hr8ermTRJNroD7A=
-github.com/valyala/tcplisten v0.0.0-20161114210144-ceec8f93295a/go.mod h1:v3UYOV9WzVtRmSR+PDvWpU/qWl4Wa5LApYYX4ZtKbio=
 github.com/viant/assertly v0.5.4 h1:5Hh4U3pLZa6uhCFAGpYOxck/8l9TZczEzoHNfJAhHEQ=
 github.com/viant/assertly v0.5.4/go.mod h1:aGifi++jvCrUaklKEKT0BU95igDNaqkvz+49uaYMPRU=
 github.com/viant/ptrie v0.3.0 h1:SDaRd7Gqr1+ItCNz0GpTxRdK21nOfqjV6YtBm9jGlMY=
@@ -810,7 +715,7 @@ github.com/xiang90/probing v0.0.0-20190116061207-43a291ad63a2/go.mod h1:UETIi67q
 github.com/xordataexchange/crypt v0.0.3-0.20170626215501-b2862e3d0a77/go.mod h1:aYKd//L2LvnjZzWKhF00oedf4jCCReLcmhLdhm1A27Q=
 github.com/yuin/goldmark v1.1.25/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74=
 github.com/yuin/goldmark v1.1.27/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74=
-go.etcd.io/bbolt v1.3.2 h1:Z/90sZLPOeCy2PwprqkFa25PdkusRzaj9P8zm/KNyvk=
+github.com/yuin/goldmark v1.2.1/go.mod h1:3hX8gzYuyVAZsxl0MRgGTJEmQBFcNTphYh9decYSb74=
 go.etcd.io/bbolt v1.3.2/go.mod h1:IbVyRI1SCnLcuJnV2u8VeU0CEYM7e686BmAb1XKL+uU=
 go.etcd.io/bbolt v1.3.4 h1:hi1bXHMVrlQh6WwxAy+qZCV/SYIlqo+Ushwdpa4tAKg=
 go.etcd.io/bbolt v1.3.4/go.mod h1:G5EMThwa9y8QZGBClrRx5EY+Yw9kAhnjy3bSjsnlVTQ=
@@ -822,7 +727,6 @@ go.opencensus.io v0.15.0/go.mod h1:UffZAU+4sDEINUGP/B7UfBBkq4fqLu9zXAX7ke6CHW0=
 go.opencensus.io v0.20.1/go.mod h1:6WKK9ahsWS3RSO+PY9ZHZUfv2irvY6gN279GOPZjmmk=
 go.opencensus.io v0.20.2/go.mod h1:6WKK9ahsWS3RSO+PY9ZHZUfv2irvY6gN279GOPZjmmk=
 go.opencensus.io v0.21.0/go.mod h1:mSImk1erAIZhrmZN+AvHh14ztQfjbGwt4TtuofqLduU=
-go.opencensus.io v0.22.0 h1:C9hSCOW830chIVkdja34wa6Ky+IzWllkUinR+BtRZd4=
 go.opencensus.io v0.22.0/go.mod h1:+kGneAE2xo2IficOXnaByMWTGM9T73dGwxeWcUqIpI8=
 go.opencensus.io v0.22.2/go.mod h1:yxeiOL68Rb0Xd1ddK5vPZ/oVn4vY4Ynel7k9FzqtOIw=
 go.opencensus.io v0.22.3/go.mod h1:yxeiOL68Rb0Xd1ddK5vPZ/oVn4vY4Ynel7k9FzqtOIw=
@@ -830,33 +734,24 @@ go.opencensus.io v0.22.4 h1:LYy1Hy3MJdrCdMwwzxA/dRok4ejH+RwNGbuoD9fCjto=
 go.opencensus.io v0.22.4/go.mod h1:yxeiOL68Rb0Xd1ddK5vPZ/oVn4vY4Ynel7k9FzqtOIw=
 go.opentelemetry.io/otel v0.15.0 h1:CZFy2lPhxd4HlhZnYK8gRyDotksO3Ip9rBweY1vVYJw=
 go.opentelemetry.io/otel v0.15.0/go.mod h1:e4GKElweB8W2gWUqbghw0B8t5MCTccc9212eNHnOHwA=
-go.uber.org/atomic v1.4.0 h1:cxzIVoETapQEqDhQu3QfnvXAV4AlzcvUCxkVUFw3+EU=
 go.uber.org/atomic v1.4.0/go.mod h1:gD2HeocX3+yG+ygLZcrzQJaqmWj9AIm7n08wl/qW/PE=
 go.uber.org/atomic v1.5.0/go.mod h1:sABNBOSYdrvTF6hTgEIbc7YasKWGhgEQZyfxyTvoXHQ=
 go.uber.org/atomic v1.6.0 h1:Ezj3JGmsOnG1MoRWQkPBsKLe9DwWD9QeXzTRzzldNVk=
 go.uber.org/atomic v1.6.0/go.mod h1:sABNBOSYdrvTF6hTgEIbc7YasKWGhgEQZyfxyTvoXHQ=
-go.uber.org/multierr v1.1.0 h1:HoEmRHQPVSqub6w2z2d2EOVs2fjyFRGyofhKuyDq0QI=
 go.uber.org/multierr v1.1.0/go.mod h1:wR5kodmAFQ0UK8QlbwjlSNy0Z68gJhDJUG5sjR94q/0=
 go.uber.org/multierr v1.3.0/go.mod h1:VgVr7evmIr6uPjLBxg28wmKNXyqE9akIJ5XnfpiKl+4=
 go.uber.org/multierr v1.5.0 h1:KCa4XfM8CWFCpxXRGok+Q0SS/0XBhMDbHHGABQLvD2A=
 go.uber.org/multierr v1.5.0/go.mod h1:FeouvMocqHpRaaGuG9EjoKcStLC43Zu/fmqdUMPcKYU=
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 go.uber.org/tools v0.0.0-20190618225709-2cfd321de3ee/go.mod h1:vJERXedbb3MVM5f9Ejo0C68/HhF8uaILCdgjnY+goOA=
-go.uber.org/zap v1.10.0 h1:ORx85nbTijNz8ljznvCMR1ZBIPKFn3jQrag10X2AsuM=
 go.uber.org/zap v1.10.0/go.mod h1:vwi/ZaCAaUcBkycHslxD9B2zi4UTXhF60s6SWpuDF0Q=
 go.uber.org/zap v1.13.0/go.mod h1:zwrFLgMcdUuIBviXEYEH1YKNaOBnKXsx2IPda5bBwHM=
 go.uber.org/zap v1.14.1 h1:nYDKopTbvAPq/NrUVZwT15y2lpROBiLLyoRTbXOYWOo=
 go.uber.org/zap v1.14.1/go.mod h1:Mb2vm2krFEG5DV0W9qcHBYFtp/Wku1cvYaqPsS/WYfc=
-gocloud.dev v0.16.0 h1:hWeaQWxamGerwsU7B9xSWvUjx0p7TwG8fcHro2TzbbM=
-gocloud.dev v0.16.0/go.mod h1:xWGXD8t7bEhqPIuyAUFyXV9qHn+PvEY2F2GKPh7i/O0=
 gocloud.dev v0.20.0 h1:mbEKMfnyPV7W1Rj35R1xXfjszs9dXkwSOq2KoFr25g8=
 gocloud.dev v0.20.0/go.mod h1:+Y/RpSXrJthIOM8uFNzWp6MRu9pFPNFEEZrQMxpkfIc=
-gocloud.dev/pubsub/natspubsub v0.16.0 h1:MoBGXULDzb1fVaZsGWO5cUCgr6yoI/DHhau8OPGaGEI=
-gocloud.dev/pubsub/natspubsub v0.16.0/go.mod h1:0n7pT7PkLMClBUHDrOkHfOFVr/o/6kawNMwsyAbwadI=
 gocloud.dev/pubsub/natspubsub v0.20.0 h1:DsOXYKfcSTh0SHKwuhpQAJmPLDj3+ARvYgBIupVPClE=
 gocloud.dev/pubsub/natspubsub v0.20.0/go.mod h1:Zh7v7Q1DZjAoBwsavZLdvinMIO1eYE0PJTllMuX3VGA=
-gocloud.dev/pubsub/rabbitpubsub v0.16.0 h1:Bkv2njMSl2tmT3tGbvbwpiIDAXBIpqzP9dmts+rhD4E=
-gocloud.dev/pubsub/rabbitpubsub v0.16.0/go.mod h1:JJVdUUIqwgaaMJg/1xHQza0g4sI/4KHHSNiGE+pn4JM=
 gocloud.dev/pubsub/rabbitpubsub v0.20.0 h1:hwupxLvWG8jTPNQ+9Q/YWZzyMagL9blTwWYYhoW4pco=
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 golang.org/x/crypto v0.0.0-20180904163835-0709b304e793/go.mod h1:6SG95UA2DQfeDnfUPMdvaQW0Q7yPrPDi9nlGo2tz2b4=
@@ -867,13 +762,10 @@ golang.org/x/crypto v0.0.0-20190404164418-38d8ce5564a5/go.mod h1:WFFai1msRO1wXaE
 golang.org/x/crypto v0.0.0-20190422162423-af44ce270edf/go.mod h1:WFFai1msRO1wXaEeE5yQxYXgSfI8pQAWXbQop6sCtWE=
 golang.org/x/crypto v0.0.0-20190510104115-cbcb75029529/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
 golang.org/x/crypto v0.0.0-20190530122614-20be4c3c3ed5/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
-golang.org/x/crypto v0.0.0-20190605123033-f99c8df09eb5 h1:58fnuSXlxZmFdJyvtTFVmVhcMLU6v5fEb/ok4wyqtNU=
 golang.org/x/crypto v0.0.0-20190605123033-f99c8df09eb5/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
 golang.org/x/crypto v0.0.0-20190701094942-4def268fd1a4/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
 golang.org/x/crypto v0.0.0-20190820162420-60c769a6c586/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
-golang.org/x/crypto v0.0.0-20191002192127-34f69633bfdc h1:c0o/qxkaO2LF5t6fQrT4b5hzyggAkLLlCUjqfRxd8Q4=
 golang.org/x/crypto v0.0.0-20191002192127-34f69633bfdc/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
-golang.org/x/crypto v0.0.0-20191011191535-87dc89f01550 h1:ObdrDkeb4kJdCP557AjRjq69pTHfNouLtWZG7j9rPN8=
 golang.org/x/crypto v0.0.0-20191011191535-87dc89f01550/go.mod h1:yigFU9vqHzYiE8UmvKecakEJjdnWj3jj499lnFckfCI=
 golang.org/x/crypto v0.0.0-20191206172530-e9b2fee46413/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
 golang.org/x/crypto v0.0.0-20200323165209-0ec3e9974c59/go.mod h1:LzIPMQfyMNhhGPhUkYOs5KpL4U8rLKemX1yGLhDgUto=
@@ -890,7 +782,6 @@ golang.org/x/exp v0.0.0-20191227195350-da58074b4299/go.mod h1:2RIsYlXP63K8oxa1u0
 golang.org/x/exp v0.0.0-20200119233911-0405dc783f0a/go.mod h1:2RIsYlXP63K8oxa1u096TMicItID8zy7Y6sNkU49FU4=
 golang.org/x/exp v0.0.0-20200207192155-f17229e696bd/go.mod h1:J/WKrq2StrnmMY6+EHIKF9dgMWnmCNThgcyBT1FY9mM=
 golang.org/x/exp v0.0.0-20200224162631-6cc2880d07d6/go.mod h1:3jZMyOhIsHpP37uCMkUooju7aAi5cS1Q23tOzKc+0MU=
-golang.org/x/image v0.0.0-20190227222117-0694c2d4d067 h1:KYGJGHOQy8oSi1fDlSpcZF0+juKwk/hEMv5SiwHogR0=
 golang.org/x/image v0.0.0-20190227222117-0694c2d4d067/go.mod h1:kZ7UVZpmo3dzQBMxlp+ypCbDeSB+sBbTgSJuh5dn5js=
 golang.org/x/image v0.0.0-20190802002840-cff245a6509b/go.mod h1:FeLwcggjj3mMvU+oOTbSwawSJRM1uh48EjtB4UJZlP0=
 golang.org/x/image v0.0.0-20191009234506-e7c1f5e7dbb8/go.mod h1:FeLwcggjj3mMvU+oOTbSwawSJRM1uh48EjtB4UJZlP0=
@@ -902,7 +793,6 @@ golang.org/x/lint v0.0.0-20190301231843-5614ed5bae6f/go.mod h1:UVdnD1Gm6xHRNCYTk
 golang.org/x/lint v0.0.0-20190313153728-d0100b6bd8b3/go.mod h1:6SW0HCj/g11FgYtHlgUYUwCkIfeOF89ocIRzGO/8vkc=
 golang.org/x/lint v0.0.0-20190409202823-959b441ac422/go.mod h1:6SW0HCj/g11FgYtHlgUYUwCkIfeOF89ocIRzGO/8vkc=
 golang.org/x/lint v0.0.0-20190909230951-414d861bb4ac/go.mod h1:6SW0HCj/g11FgYtHlgUYUwCkIfeOF89ocIRzGO/8vkc=
-golang.org/x/lint v0.0.0-20190930215403-16217165b5de h1:5hukYrvBGR8/eNkX5mdUezrA6JiaEZDtJb9Ei+1LlBs=
 golang.org/x/lint v0.0.0-20190930215403-16217165b5de/go.mod h1:6SW0HCj/g11FgYtHlgUYUwCkIfeOF89ocIRzGO/8vkc=
 golang.org/x/lint v0.0.0-20191125180803-fdd1cda4f05f/go.mod h1:5qLYkcX4OjUUV8bRuDixDT3tpyyb+LUpUlRWLxfhWrs=
 golang.org/x/lint v0.0.0-20200130185559-910be7a94367/go.mod h1:3xt1FjdF8hUf6vQPIChWIBhFzV8gjjsPE/fR3IyQdNY=
@@ -941,7 +831,6 @@ golang.org/x/net v0.0.0-20190813141303-74dc4d7220e7/go.mod h1:z5CRVTTTmAJ677TzLL
 golang.org/x/net v0.0.0-20191112182307-2180aed22343/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
 golang.org/x/net v0.0.0-20191209160850-c0dbc17a3553/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
 golang.org/x/net v0.0.0-20200114155413-6afb5195e5aa/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
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 golang.org/x/net v0.0.0-20200202094626-16171245cfb2/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
 golang.org/x/net v0.0.0-20200222125558-5a598a2470a0/go.mod h1:z5CRVTTTmAJ677TzLLGU+0bjPO0LkuOLi4/5GtJWs/s=
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@@ -953,13 +842,13 @@ golang.org/x/net v0.0.0-20200513185701-a91f0712d120/go.mod h1:qpuaurCH72eLCgpAm/
 golang.org/x/net v0.0.0-20200520004742-59133d7f0dd7/go.mod h1:qpuaurCH72eLCgpAm/N6yyVIVM9cpaDIP3A8BGJEC5A=
 golang.org/x/net v0.0.0-20200520182314-0ba52f642ac2/go.mod h1:qpuaurCH72eLCgpAm/N6yyVIVM9cpaDIP3A8BGJEC5A=
 golang.org/x/net v0.0.0-20200602114024-627f9648deb9/go.mod h1:qpuaurCH72eLCgpAm/N6yyVIVM9cpaDIP3A8BGJEC5A=
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 golang.org/x/oauth2 v0.0.0-20190226205417-e64efc72b421/go.mod h1:gOpvHmFTYa4IltrdGE7lF6nIHvwfUNPOp7c8zoXwtLw=
 golang.org/x/oauth2 v0.0.0-20190402181905-9f3314589c9a/go.mod h1:gOpvHmFTYa4IltrdGE7lF6nIHvwfUNPOp7c8zoXwtLw=
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@@ -969,12 +858,12 @@ golang.org/x/sync v0.0.0-20181108010431-42b317875d0f/go.mod h1:RxMgew5VJxzue5/jJ
 golang.org/x/sync v0.0.0-20181221193216-37e7f081c4d4/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
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 golang.org/x/sync v0.0.0-20190412183630-56d357773e84/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
-golang.org/x/sync v0.0.0-20190423024810-112230192c58 h1:8gQV6CLnAEikrhgkHFbMAEhagSSnXWGV915qUMm9mrU=
 golang.org/x/sync v0.0.0-20190423024810-112230192c58/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
 golang.org/x/sync v0.0.0-20190911185100-cd5d95a43a6e/go.mod h1:RxMgew5VJxzue5/jJTE5uejpjVlOe/izrB70Jof72aM=
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 golang.org/x/sys v0.0.0-20180823144017-11551d06cbcc/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20180830151530-49385e6e1522/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
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@@ -984,7 +873,6 @@ golang.org/x/sys v0.0.0-20181107165924-66b7b1311ac8/go.mod h1:STP8DvDyc/dI5b8T5h
 golang.org/x/sys v0.0.0-20181116152217-5ac8a444bdc5/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20181122145206-62eef0e2fa9b/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
 golang.org/x/sys v0.0.0-20190215142949-d0b11bdaac8a/go.mod h1:STP8DvDyc/dI5b8T5hshtkjS+E42TnysNCUPdjciGhY=
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 golang.org/x/sys v0.0.0-20190312061237-fead79001313/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20190403152447-81d4e9dc473e/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
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@@ -994,8 +882,6 @@ golang.org/x/sys v0.0.0-20190502145724-3ef323f4f1fd/go.mod h1:h1NjWce9XRLGQEsW7w
 golang.org/x/sys v0.0.0-20190507160741-ecd444e8653b/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20190531175056-4c3a928424d2/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
 golang.org/x/sys v0.0.0-20190606165138-5da285871e9c/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
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 golang.org/x/sys v0.0.0-20190624142023-c5567b49c5d0/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
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@@ -1006,9 +892,10 @@ golang.org/x/sys v0.0.0-20191120155948-bd437916bb0e/go.mod h1:h1NjWce9XRLGQEsW7w
 golang.org/x/sys v0.0.0-20191204072324-ce4227a45e2e/go.mod h1:h1NjWce9XRLGQEsW7wpKNCjG9DtNlClVuFLEZdDNbEs=
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@@ -1023,19 +910,21 @@ golang.org/x/sys v0.0.0-20200515095857-1151b9dac4a9/go.mod h1:h1NjWce9XRLGQEsW7w
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@@ -1064,7 +953,6 @@ golang.org/x/tools v0.0.0-20190816200558-6889da9d5479/go.mod h1:b+2E5dAYhXwXZwtn
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@@ -1073,7 +961,6 @@ golang.org/x/tools v0.0.0-20191125144606-a911d9008d1f/go.mod h1:b+2E5dAYhXwXZwtn
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@@ -1093,22 +980,19 @@ golang.org/x/tools v0.0.0-20200512131952-2bc93b1c0c88/go.mod h1:EkVYQZoAsY45+roY
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@@ -1125,10 +1009,7 @@ google.golang.org/appengine v1.1.0/go.mod h1:EbEs0AVv82hx2wNQdGPgUI5lhzA/G0D9Ywl
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@@ -1139,9 +1020,7 @@ google.golang.org/genproto v0.0.0-20190425155659-357c62f0e4bb/go.mod h1:VzzqZJRn
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@@ -1162,7 +1041,6 @@ google.golang.org/genproto v0.0.0-20200331122359-1ee6d9798940/go.mod h1:55QSHmfG
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@@ -1174,12 +1052,9 @@ google.golang.org/grpc v1.20.1/go.mod h1:10oTOabMzJvdu6/UiuZezV6QK5dSlG84ov/aaiq
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@@ -1193,12 +1068,11 @@ google.golang.org/protobuf v1.21.0/go.mod h1:47Nbq4nVaFHyn7ilMalzfO3qCViNmqZ2kzi
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@@ -1206,7 +1080,6 @@ gopkg.in/cheggaaa/pb.v1 v1.0.25/go.mod h1:V/YB90LKu/1FcN3WVnfiiE5oMCibMjukxqG/qS
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+modernc.org/httpfs v1.0.6/go.mod h1:7dosgurJGp0sPaRanU53W4xZYKh14wfzX420oZADeHM=
+modernc.org/libc v1.7.13-0.20210308123627-12f642a52bb8/go.mod h1:U1eq8YWr/Kc1RWCMFUWEdkTg8OTcfLw2kY8EDwl039w=
+modernc.org/libc v1.9.5 h1:zv111ldxmP7DJ5mOIqzRbza7ZDl3kh4ncKfASB2jIYY=
+modernc.org/libc v1.9.5/go.mod h1:U1eq8YWr/Kc1RWCMFUWEdkTg8OTcfLw2kY8EDwl039w=
 modernc.org/mathutil v1.1.1/go.mod h1:mZW8CKdRPY1v87qxC/wUdX5O1qDzXMP5TH3wjfpga6E=
+modernc.org/mathutil v1.2.2 h1:+yFk8hBprV+4c0U9GjFtL+dV3N8hOJ8JCituQcMShFY=
+modernc.org/mathutil v1.2.2/go.mod h1:mZW8CKdRPY1v87qxC/wUdX5O1qDzXMP5TH3wjfpga6E=
+modernc.org/memory v1.0.4 h1:utMBrFcpnQDdNsmM6asmyH/FM9TqLPS7XF7otpJmrwM=
+modernc.org/memory v1.0.4/go.mod h1:nV2OApxradM3/OVbs2/0OsP6nPfakXpi50C7dcoHXlc=
+modernc.org/opt v0.1.1 h1:/0RX92k9vwVeDXj+Xn23DKp2VJubL7k8qNffND6qn3A=
+modernc.org/opt v0.1.1/go.mod h1:WdSiB5evDcignE70guQKxYUl14mgWtbClRi5wmkkTX0=
+modernc.org/sqlite v1.10.7 h1:B4ITfAx3HxSxOOKZqKhw4vnrhM+kTY1HoJf2L7PQBCQ=
+modernc.org/sqlite v1.10.7/go.mod h1:GXpJIZPNgRGqG0inyYDW18j9YpBpFUBn/weGI63hLLs=
 modernc.org/strutil v1.1.0 h1:+1/yCzZxY2pZwwrsbH+4T7BQMoLQ9QiBshRC9eicYsc=
 modernc.org/strutil v1.1.0/go.mod h1:lstksw84oURvj9y3tn8lGvRxyRC1S2+g5uuIzNfIOBs=
-pack.ag/amqp v0.11.2/go.mod h1:4/cbmt4EJXSKlG6LCfWHoqmN0uFdy5i/+YFz+fTfhV4=
+modernc.org/tcl v1.5.2 h1:sYNjGr4zK6cDH74USl8wVJRrvDX6UOLpG0j4lFvR0W0=
+modernc.org/tcl v1.5.2/go.mod h1:pmJYOLgpiys3oI4AeAafkcUfE+TKKilminxNyU/+Zlo=
+modernc.org/token v1.0.0 h1:a0jaWiNMDhDUtqOj09wvjWWAqd3q7WpBulmL9H2egsk=
+modernc.org/token v1.0.0/go.mod h1:UGzOrNV1mAFSEB63lOFHIpNRUVMvYTc6yu1SMY/XTDM=
+modernc.org/z v1.0.1-0.20210308123920-1f282aa71362/go.mod h1:8/SRk5C/HgiQWCgXdfpb+1RvhORdkz5sw72d3jjtyqA=
+modernc.org/z v1.0.1 h1:WyIDpEpAIx4Hel6q/Pcgj/VhaQV5XPJ2I6ryIYbjnpc=
+modernc.org/z v1.0.1/go.mod h1:8/SRk5C/HgiQWCgXdfpb+1RvhORdkz5sw72d3jjtyqA=
 rsc.io/binaryregexp v0.2.0/go.mod h1:qTv7/COck+e2FymRvadv62gMdZztPaShugOCi3I+8D8=
 rsc.io/quote/v3 v3.1.0/go.mod h1:yEA65RcK8LyAZtP9Kv3t0HmxON59tX3rD+tICJqUlj0=
 rsc.io/sampler v1.3.0/go.mod h1:T1hPZKmBbMNahiBKFy5HrXp6adAjACjK9JXDnKaTXpA=

k8s/seaweedfs/Chart.yaml

@@ -1,5 +1,5 @@
 apiVersion: v1
 description: SeaweedFS
 name: seaweedfs
-appVersion: "2.48"
-version: 2.48
+appVersion: "2.59"
+version: "2.59"

k8s/seaweedfs/templates/volume-statefulset.yaml

@@ -110,7 +110,7 @@ spec:
                 -dataCenter={{ .Values.volume.dataCenter }} \
                 {{- end }}
                 -ip.bind={{ .Values.volume.ipBind }} \
-                -read.redirect={{ .Values.volume.readRedirect }} \
+                -readMode={{ .Values.volume.readMode }} \
                 {{- if .Values.volume.whiteList }}
                 -whiteList={{ .Values.volume.whiteList }} \
                 {{- end }}

k8s/seaweedfs/values.yaml

@@ -4,7 +4,7 @@ global:
   registry: ""
   repository: ""
   imageName: chrislusf/seaweedfs
-  # imageTag: "2.48" - started using {.Chart.appVersion}
+  # imageTag: "2.59" - started using {.Chart.appVersion}
   imagePullPolicy: IfNotPresent
   imagePullSecrets: imagepullsecret
   restartPolicy: Always
@@ -175,8 +175,8 @@ volume:
   # Volume server's data center name
   dataCenter: null
 
-  # Redirect moved or non-local volumes. (default true)
-  readRedirect: true
+  # Redirect moved or non-local volumes. (default proxy)
+  readMode: proxy
 
   # Comma separated Ip addresses having write permission. No limit if empty.
   whiteList: null

other/java/client/pom.xml

@@ -5,7 +5,7 @@
 
     <groupId>com.github.chrislusf</groupId>
     <artifactId>seaweedfs-client</artifactId>
-    <version>1.6.4</version>
+    <version>1.6.6</version>
 
     <parent>
         <groupId>org.sonatype.oss</groupId>

other/java/client/pom.xml.deploy

@@ -5,7 +5,7 @@
 
     <groupId>com.github.chrislusf</groupId>
     <artifactId>seaweedfs-client</artifactId>
-    <version>1.6.4</version>
+    <version>1.6.6</version>
 
     <parent>
         <groupId>org.sonatype.oss</groupId>

other/java/client/pom_debug.xml

@@ -5,7 +5,7 @@
 
     <groupId>com.github.chrislusf</groupId>
     <artifactId>seaweedfs-client</artifactId>
-    <version>1.6.4</version>
+    <version>1.6.6</version>
 
     <parent>
         <groupId>org.sonatype.oss</groupId>

other/java/client/src/main/java/seaweedfs/client/ByteBufferPool.java

@@ -10,7 +10,7 @@ import java.util.List;
 
 public class ByteBufferPool {
 
-    private static final int MIN_BUFFER_SIZE = 8 * 1024 * 1024;
+    private static final int MIN_BUFFER_SIZE = 1 * 1024 * 1024;
     private static final Logger LOG = LoggerFactory.getLogger(ByteBufferPool.class);
 
     private static final List<ByteBuffer> bufferList = new ArrayList<>();

other/java/client/src/main/java/seaweedfs/client/SeaweedOutputStream.java

@@ -39,7 +39,7 @@ public class SeaweedOutputStream extends OutputStream {
     }
 
     public SeaweedOutputStream(FilerClient filerClient, final String fullpath, final String replication) {
-        this(filerClient, fullpath, null, 0, 8 * 1024 * 1024, "000");
+        this(filerClient, fullpath, null, 0, 8 * 1024 * 1024, replication);
     }
 
     public SeaweedOutputStream(FilerClient filerClient, final String path, FilerProto.Entry.Builder entry,

other/java/client/src/main/java/seaweedfs/client/SeaweedWrite.java

@@ -1,5 +1,6 @@
 package seaweedfs.client;
 
+import com.google.common.base.Strings;
 import com.google.protobuf.ByteString;
 import org.apache.http.client.methods.CloseableHttpResponse;
 import org.apache.http.client.methods.HttpPost;
@@ -45,11 +46,16 @@ public class SeaweedWrite {
         FilerProto.AssignVolumeResponse response = filerClient.getBlockingStub().assignVolume(
                 FilerProto.AssignVolumeRequest.newBuilder()
                         .setCollection(filerClient.getCollection())
-                        .setReplication(replication == null ? filerClient.getReplication() : replication)
+                        .setReplication(Strings.isNullOrEmpty(replication) ? filerClient.getReplication() : replication)
                         .setDataCenter("")
                         .setTtlSec(0)
                         .setPath(path)
                         .build());
+
+        if (!Strings.isNullOrEmpty(response.getError())) {
+            throw new IOException(response.getError());
+        }
+
         String fileId = response.getFileId();
         String auth = response.getAuth();
 

other/java/client/src/main/proto/filer.proto

@@ -208,6 +208,7 @@ message AtomicRenameEntryRequest {
     string old_name = 2;
     string new_directory = 3;
     string new_name = 4;
+    repeated int32 signatures = 5;
 }
 
 message AtomicRenameEntryResponse {
@@ -292,6 +293,7 @@ message GetFilerConfigurationResponse {
     int32 signature = 8;
     string metrics_address = 9;
     int32 metrics_interval_sec = 10;
+    string version = 11;
 }
 
 message SubscribeMetadataRequest {
@@ -361,6 +363,7 @@ message FilerConf {
         string disk_type = 5;
         bool fsync = 6;
         uint32 volume_growth_count = 7;
+        bool read_only = 8;
     }
     repeated PathConf locations = 2;
 }

other/java/examples/pom.xml

@@ -11,13 +11,13 @@
         <dependency>
             <groupId>com.github.chrislusf</groupId>
             <artifactId>seaweedfs-client</artifactId>
-            <version>1.6.4</version>
+            <version>1.6.6</version>
             <scope>compile</scope>
         </dependency>
         <dependency>
             <groupId>com.github.chrislusf</groupId>
             <artifactId>seaweedfs-hadoop2-client</artifactId>
-            <version>1.6.4</version>
+            <version>1.6.6</version>
             <scope>compile</scope>
         </dependency>
         <dependency>

other/java/hdfs2/dependency-reduced-pom.xml

@@ -301,7 +301,7 @@
     </snapshotRepository>
   </distributionManagement>
   <properties>
-    <seaweedfs.client.version>1.6.4</seaweedfs.client.version>
+    <seaweedfs.client.version>1.6.6</seaweedfs.client.version>
     <hadoop.version>2.9.2</hadoop.version>
   </properties>
 </project>

other/java/hdfs2/pom.xml

@@ -5,7 +5,7 @@
     <modelVersion>4.0.0</modelVersion>
 
     <properties>
-        <seaweedfs.client.version>1.6.4</seaweedfs.client.version>
+        <seaweedfs.client.version>1.6.6</seaweedfs.client.version>
         <hadoop.version>2.9.2</hadoop.version>
     </properties>
 

other/java/hdfs3/dependency-reduced-pom.xml

@@ -309,7 +309,7 @@
     </snapshotRepository>
   </distributionManagement>
   <properties>
-    <seaweedfs.client.version>1.6.4</seaweedfs.client.version>
+    <seaweedfs.client.version>1.6.6</seaweedfs.client.version>
     <hadoop.version>3.1.1</hadoop.version>
   </properties>
 </project>

other/java/hdfs3/pom.xml

@@ -5,7 +5,7 @@
     <modelVersion>4.0.0</modelVersion>
 
     <properties>
-        <seaweedfs.client.version>1.6.4</seaweedfs.client.version>
+        <seaweedfs.client.version>1.6.6</seaweedfs.client.version>
         <hadoop.version>3.1.1</hadoop.version>
     </properties>
 

other/metrics/grafana_seaweedfs.json

@@ -1805,6 +1805,336 @@
               "show": true
             }
           ]
+        },
+        {
+          "type": "graph",
+          "title": "Process memory",
+          "gridPos": {
+            "x": 0,
+            "y": 40,
+            "w": 24,
+            "h": 7
+          },
+          "aliasColors": {},
+          "dashLength": 10,
+          "datasource": "${DS_PROMETHEUS-DEV}",
+          "fieldConfig": {
+            "defaults": {
+              "custom": {},
+              "links": []
+            },
+            "overrides": []
+          },
+          "fill": 1,
+          "id": 66,
+          "legend": {
+            "avg": false,
+            "current": false,
+            "max": false,
+            "min": false,
+            "show": true,
+            "total": false,
+            "values": false
+          },
+          "lines": true,
+          "linewidth": 1,
+          "links": [],
+          "nullPointMode": "null",
+          "options": {
+            "alertThreshold": true
+          },
+          "paceLength": 10,
+          "pluginVersion": "7.4.5",
+          "pointradius": 5,
+          "renderer": "flot",
+          "seriesOverrides": [
+            {
+              "$$hashKey": "object:258",
+              "alias": "max limit",
+              "color": "#890f02"
+            }
+          ],
+          "spaceLength": 10,
+          "targets": [
+            {
+              "expr": "process_resident_memory_bytes{exported_job=\"filer\"}",
+              "legendFormat": "resident {{exported_instance}}",
+              "interval": "",
+              "format": "time_series",
+              "groupBy": [
+                {
+                  "params": [
+                    "$__interval"
+                  ],
+                  "type": "time"
+                },
+                {
+                  "params": [
+                    "null"
+                  ],
+                  "type": "fill"
+                }
+              ],
+              "intervalFactor": 2,
+              "orderByTime": "ASC",
+              "policy": "default",
+              "refId": "A",
+              "resultFormat": "time_series",
+              "select": [
+                [
+                  {
+                    "params": [
+                      "value"
+                    ],
+                    "type": "field"
+                  },
+                  {
+                    "params": [],
+                    "type": "mean"
+                  }
+                ]
+              ],
+              "step": 120,
+              "tags": []
+            },
+            {
+              "expr": "process_virtual_memory_bytes{exported_job=\"filer\"}",
+              "legendFormat": "virtual {{exported_instance}}",
+              "interval": "",
+              "format": "time_series",
+              "intervalFactor": 2,
+              "refId": "B",
+              "step": 120
+            }
+          ],
+          "thresholds": [],
+          "timeRegions": [],
+          "tooltip": {
+            "shared": true,
+            "sort": 2,
+            "value_type": "individual"
+          },
+          "xaxis": {
+            "buckets": null,
+            "mode": "time",
+            "name": null,
+            "show": true,
+            "values": []
+          },
+          "yaxes": [
+            {
+              "$$hashKey": "object:265",
+              "format": "bytes",
+              "label": null,
+              "logBase": 1,
+              "max": null,
+              "min": null,
+              "show": true
+            },
+            {
+              "$$hashKey": "object:266",
+              "format": "short",
+              "label": null,
+              "logBase": 1,
+              "max": null,
+              "min": null,
+              "show": true
+            }
+          ],
+          "yaxis": {
+            "align": false,
+            "alignLevel": null
+          },
+          "bars": false,
+          "dashes": false,
+          "fillGradient": 0,
+          "hiddenSeries": false,
+          "percentage": false,
+          "points": false,
+          "stack": false,
+          "steppedLine": false,
+          "timeFrom": null,
+          "timeShift": null
+        },
+        {
+          "type": "graph",
+          "title": "Open File Descriptor",
+          "gridPos": {
+            "x": 0,
+            "y": 47,
+            "w": 24,
+            "h": 7
+          },
+          "aliasColors": {},
+          "dashLength": 10,
+          "datasource": "${DS_PROMETHEUS-DEV}",
+          "editable": true,
+          "fieldConfig": {
+            "defaults": {
+              "custom": {},
+              "links": []
+            },
+            "overrides": []
+          },
+          "fill": 1,
+          "id": 68,
+          "legend": {
+            "avg": false,
+            "current": false,
+            "max": false,
+            "min": false,
+            "show": true,
+            "total": false,
+            "values": false
+          },
+          "lines": true,
+          "linewidth": 1,
+          "links": [],
+          "nullPointMode": "connected",
+          "options": {
+            "alertThreshold": true
+          },
+          "paceLength": 10,
+          "pluginVersion": "7.4.5",
+          "pointradius": 5,
+          "renderer": "flot",
+          "seriesOverrides": [],
+          "spaceLength": 10,
+          "targets": [
+            {
+              "expr": "process_open_fds{exported_job=\"filer\"}",
+              "legendFormat": "{{exported_instance}}",
+              "interval": "",
+              "format": "time_series",
+              "groupBy": [
+                {
+                  "params": [
+                    "$interval"
+                  ],
+                  "type": "time"
+                },
+                {
+                  "params": [
+                    "null"
+                  ],
+                  "type": "fill"
+                }
+              ],
+              "intervalFactor": 2,
+              "metric": "",
+              "policy": "default",
+              "refId": "A",
+              "resultFormat": "time_series",
+              "select": [
+                [
+                  {
+                    "params": [
+                      "value"
+                    ],
+                    "type": "field"
+                  },
+                  {
+                    "params": [],
+                    "type": "mean"
+                  }
+                ]
+              ],
+              "step": 240,
+              "tags": []
+            },
+            {
+              "expr": "process_max_fds{exported_job=\"filer\"}",
+              "legendFormat": "{{exported_instance}}",
+              "interval": "",
+              "format": "time_series",
+              "groupBy": [
+                {
+                  "params": [
+                    "$interval"
+                  ],
+                  "type": "time"
+                },
+                {
+                  "params": [
+                    "null"
+                  ],
+                  "type": "fill"
+                }
+              ],
+              "intervalFactor": 2,
+              "metric": "",
+              "policy": "default",
+              "refId": "B",
+              "resultFormat": "time_series",
+              "select": [
+                [
+                  {
+                    "params": [
+                      "value"
+                    ],
+                    "type": "field"
+                  },
+                  {
+                    "params": [],
+                    "type": "mean"
+                  }
+                ]
+              ],
+              "step": 240,
+              "tags": [],
+              "hide": false
+            }
+          ],
+          "thresholds": [],
+          "timeRegions": [],
+          "tooltip": {
+            "msResolution": false,
+            "shared": true,
+            "sort": 0,
+            "value_type": "individual"
+          },
+          "xaxis": {
+            "buckets": null,
+            "mode": "time",
+            "name": null,
+            "show": true,
+            "values": []
+          },
+          "yaxes": [
+            {
+              "$$hashKey": "object:1087",
+              "format": "short",
+              "label": null,
+              "logBase": 1,
+              "max": null,
+              "min": null,
+              "show": true
+            },
+            {
+              "$$hashKey": "object:1088",
+              "format": "short",
+              "label": null,
+              "logBase": 1,
+              "max": null,
+              "min": null,
+              "show": true
+            }
+          ],
+          "yaxis": {
+            "align": false,
+            "alignLevel": null
+          },
+          "bars": false,
+          "dashes": false,
+          "error": false,
+          "fillGradient": 0,
+          "hiddenSeries": false,
+          "percentage": false,
+          "points": false,
+          "stack": false,
+          "steppedLine": false,
+          "timeFrom": null,
+          "timeShift": null
         }
       ],
       "repeat": null,

unmaintained/load_test/load_test_leveldb/load_test_leveldb.go

@@ -1,4 +1,4 @@
-package load_test_leveldb
+package main
 
 import (
 	"crypto/md5"

unmaintained/load_test/load_test_meta_tail/load_test_meta_tail.go

@@ -0,0 +1,112 @@
+package main
+
+import (
+	"context"
+	"flag"
+	"fmt"
+	"github.com/chrislusf/seaweedfs/weed/glog"
+	"github.com/chrislusf/seaweedfs/weed/pb"
+	"github.com/chrislusf/seaweedfs/weed/pb/filer_pb"
+	"google.golang.org/grpc"
+	"io"
+	"strconv"
+	"time"
+)
+
+var (
+	dir       = flag.String("dir", "/tmp", "directory to create files")
+	n         = flag.Int("n", 100, "the number of metadata")
+	tailFiler = flag.String("filer", "localhost:8888", "the filer address")
+	isWrite   = flag.Bool("write", false, "only write")
+)
+
+func main() {
+
+	flag.Parse()
+
+	if *isWrite {
+		startGenerateMetadata()
+		return
+	}
+
+	expected := 0
+	startSubscribeMetadata(func(event *filer_pb.SubscribeMetadataResponse) error {
+		if event.Directory != *dir {
+			return nil
+		}
+		name := event.EventNotification.NewEntry.Name
+		glog.V(0).Infof("=> %s ts:%+v", name, time.Unix(0, event.TsNs))
+		id := name[4:]
+		if x, err := strconv.Atoi(id); err == nil {
+			if x != expected {
+				return fmt.Errorf("Expected file%d Actual %s\n", expected, name)
+			}
+			expected++
+		} else {
+			return err
+		}
+		time.Sleep(10 * time.Millisecond)
+		return nil
+	})
+
+}
+
+func startGenerateMetadata() {
+	pb.WithFilerClient(*tailFiler, grpc.WithInsecure(), func(client filer_pb.SeaweedFilerClient) error {
+
+		for i := 0; i < *n; i++ {
+			name := fmt.Sprintf("file%d", i)
+			if err := filer_pb.CreateEntry(client, &filer_pb.CreateEntryRequest{
+				Directory: *dir,
+				Entry: &filer_pb.Entry{
+					Name: name,
+				},
+			}); err != nil {
+				fmt.Printf("create entry %s: %v\n", name, err)
+				return err
+			}
+		}
+
+		return nil
+
+	})
+}
+
+func startSubscribeMetadata(eachEntryFunc func(event *filer_pb.SubscribeMetadataResponse) error) {
+
+	lastTsNs := int64(0)
+
+	tailErr := pb.WithFilerClient(*tailFiler, grpc.WithInsecure(), func(client filer_pb.SeaweedFilerClient) error {
+
+		ctx, cancel := context.WithCancel(context.Background())
+		defer cancel()
+
+		stream, err := client.SubscribeMetadata(ctx, &filer_pb.SubscribeMetadataRequest{
+			ClientName: "tail",
+			PathPrefix: *dir,
+			SinceNs:    lastTsNs,
+		})
+		if err != nil {
+			return fmt.Errorf("listen: %v", err)
+		}
+
+		for {
+			resp, listenErr := stream.Recv()
+			if listenErr == io.EOF {
+				return nil
+			}
+			if listenErr != nil {
+				return listenErr
+			}
+			if err = eachEntryFunc(resp); err != nil {
+				glog.V(0).Infof("tail last record:%+v", time.Unix(0, lastTsNs))
+				return err
+			}
+			lastTsNs = resp.TsNs
+		}
+
+	})
+	if tailErr != nil {
+		fmt.Printf("tail %s: %v\n", *tailFiler, tailErr)
+	}
+}

weed/Makefile

@@ -16,7 +16,7 @@ debug_shell:
 
 debug_mount:
 	go build -gcflags="all=-N -l"
-	dlv --listen=:2345 --headless=true --api-version=2 --accept-multiclient exec weed -- -v=4 mount -dir=~/tmp/mm -cacheCapacityMB=0 -filer.path=/buckets
+	dlv --listen=:2345 --headless=true --api-version=2 --accept-multiclient exec weed -- -v=4 mount -dir=~/tmp/mm -cacheCapacityMB=0 -filer.path=/
 
 debug_server:
 	go build -gcflags="all=-N -l"

weed/command/command.go

@@ -22,6 +22,7 @@ var Commands = []*Command{
 	cmdFilerReplicate,
 	cmdFilerSynchronize,
 	cmdFix,
+	cmdFuse,
 	cmdGateway,
 	cmdMaster,
 	cmdMount,

weed/command/filer_copy.go

@@ -213,11 +213,15 @@ func genFileCopyTask(fileOrDir string, destPath string, fileCopyTaskChan chan Fi
 
 	mode := fi.Mode()
 	uid, gid := util.GetFileUidGid(fi)
+	fileSize := fi.Size()
+	if mode.IsDir() {
+		fileSize = 0
+	}
 
 	fileCopyTaskChan <- FileCopyTask{
 		sourceLocation:     fileOrDir,
 		destinationUrlPath: destPath,
-		fileSize:           fi.Size(),
+		fileSize:           fileSize,
 		fileMode:           fi.Mode(),
 		uid:                uid,
 		gid:                gid,

weed/command/filer_sync.go

@@ -197,7 +197,7 @@ func doSubscribeFilerMetaChanges(grpcDialOption grpc.DialOption, sourceFiler, so
 
 			counter++
 			if lastWriteTime.Add(3 * time.Second).Before(time.Now()) {
-				glog.V(0).Infof("sync %s => %s progressed to %v %0.2f/sec", sourceFiler, targetFiler, time.Unix(0, resp.TsNs), float64(counter)/float64(3))
+				glog.V(0).Infof("sync %s to %s progressed to %v %0.2f/sec", sourceFiler, targetFiler, time.Unix(0, resp.TsNs), float64(counter)/float64(3))
 				counter = 0
 				lastWriteTime = time.Now()
 				if err := setOffset(grpcDialOption, targetFiler, SyncKeyPrefix, sourceFilerSignature, resp.TsNs); err != nil {
@@ -359,16 +359,19 @@ func genProcessFunction(sourcePath string, targetPath string, dataSink sink.Repl
 	return processEventFn
 }
 
-func buildKey(dataSink sink.ReplicationSink, message *filer_pb.EventNotification, targetPath string, sourceKey util.FullPath, sourcePath string) string {
+func buildKey(dataSink sink.ReplicationSink, message *filer_pb.EventNotification, targetPath string, sourceKey util.FullPath, sourcePath string) (key string) {
 	if !dataSink.IsIncremental() {
-		return util.Join(targetPath, string(sourceKey)[len(sourcePath):])
+		key = util.Join(targetPath, string(sourceKey)[len(sourcePath):])
+	} else {
+		var mTime int64
+		if message.NewEntry != nil {
+			mTime = message.NewEntry.Attributes.Mtime
+		} else if message.OldEntry != nil {
+			mTime = message.OldEntry.Attributes.Mtime
+		}
+		dateKey := time.Unix(mTime, 0).Format("2006-01-02")
+		key = util.Join(targetPath, dateKey, string(sourceKey)[len(sourcePath):])
 	}
-	var mTime int64
-	if message.NewEntry != nil {
-		mTime = message.NewEntry.Attributes.Mtime
-	} else if message.OldEntry != nil {
-		mTime = message.OldEntry.Attributes.Mtime
-	}
-	dateKey := time.Unix(mTime, 0).Format("2006-01-02")
-	return util.Join(targetPath, dateKey, string(sourceKey)[len(sourcePath):])
+
+	return escapeKey(key)
 }

weed/command/filer_sync_std.go

@@ -0,0 +1,7 @@
+// +build !windows
+
+package command
+
+func escapeKey(key string) string {
+	return key
+}

weed/command/filer_sync_windows.go

@@ -0,0 +1,12 @@
+package command
+
+import (
+	"strings"
+)
+
+func escapeKey(key string) string {
+	if strings.Contains(key, ":") {
+		return strings.ReplaceAll(key, ":", "")
+	}
+	return key
+}

weed/command/fuse.go

@@ -0,0 +1,260 @@
+package command
+
+import (
+	"fmt"
+	"os"
+	"strconv"
+	"strings"
+	"time"
+)
+
+func init() {
+	cmdFuse.Run = runFuse // break init cycle
+}
+
+type parameter struct {
+	name  string
+	value string
+}
+
+func runFuse(cmd *Command, args []string) bool {
+	rawArgs := strings.Join(args, " ")
+	rawArgsLen := len(rawArgs)
+	option := strings.Builder{}
+	options := []parameter{}
+	masterProcess := true
+	fusermountPath := ""
+
+	// first parameter
+	i := 0
+	for i = 0; i < rawArgsLen && rawArgs[i] != ' '; i++ {
+		option.WriteByte(rawArgs[i])
+	}
+	options = append(options, parameter{"arg0", option.String()})
+	option.Reset()
+
+	for i++; i < rawArgsLen; i++ {
+
+		// space separator check for filled option
+		if rawArgs[i] == ' ' {
+			if option.Len() > 0 {
+				options = append(options, parameter{option.String(), "true"})
+				option.Reset()
+			}
+
+			// dash separator read option until next space
+		} else if rawArgs[i] == '-' {
+			for i++; i < rawArgsLen && rawArgs[i] != ' '; i++ {
+				option.WriteByte(rawArgs[i])
+			}
+			options = append(options, parameter{option.String(), "true"})
+			option.Reset()
+
+			// equal separator start option with pending value
+		} else if rawArgs[i] == '=' {
+			name := option.String()
+			option.Reset()
+
+			for i++; i < rawArgsLen && rawArgs[i] != ',' && rawArgs[i] != ' '; i++ {
+				// double quote separator read option until next double quote
+				if rawArgs[i] == '"' {
+					for i++; i < rawArgsLen && rawArgs[i] != '"'; i++ {
+						option.WriteByte(rawArgs[i])
+					}
+
+				// single quote separator read option until next single quote
+				} else if rawArgs[i] == '\'' {
+					for i++; i < rawArgsLen && rawArgs[i] != '\''; i++ {
+						option.WriteByte(rawArgs[i])
+					}
+
+					// add chars before comma
+				} else if rawArgs[i] != ' ' {
+					option.WriteByte(rawArgs[i])
+				}
+			}
+
+			options = append(options, parameter{name, option.String()})
+			option.Reset()
+
+			// comma separator just read current option
+		} else if rawArgs[i] == ',' {
+			options = append(options, parameter{option.String(), "true"})
+			option.Reset()
+
+			// what is not a separator fill option buffer
+		} else {
+			option.WriteByte(rawArgs[i])
+		}
+	}
+
+	// get residual option data
+	if option.Len() > 0 {
+		// add value to pending option
+		options = append(options, parameter{option.String(), "true"})
+		option.Reset()
+	}
+
+	// scan each parameter
+	for i := 0; i < len(options); i++ {
+		parameter := options[i]
+
+		switch parameter.name {
+		case "child":
+			masterProcess = false
+		case "arg0":
+			mountOptions.dir = &parameter.value
+		case "filer":
+			mountOptions.filer = &parameter.value
+		case "filer.path":
+			mountOptions.filerMountRootPath = &parameter.value
+		case "dirAutoCreate":
+			if parsed, err := strconv.ParseBool(parameter.value); err != nil {
+				mountOptions.dirAutoCreate = &parsed
+			} else {
+				panic(fmt.Errorf("dirAutoCreate: %s", err))
+			}
+		case "collection":
+			mountOptions.collection = &parameter.value
+		case "replication":
+			mountOptions.replication = &parameter.value
+		case "disk":
+			mountOptions.diskType = &parameter.value
+		case "ttl":
+			if parsed, err := strconv.ParseInt(parameter.value, 0, 32); err != nil {
+				intValue := int(parsed)
+				mountOptions.ttlSec = &intValue
+			} else {
+				panic(fmt.Errorf("ttl: %s", err))
+			}
+		case "chunkSizeLimitMB":
+			if parsed, err := strconv.ParseInt(parameter.value, 0, 32); err != nil {
+				intValue := int(parsed)
+				mountOptions.chunkSizeLimitMB = &intValue
+			} else {
+				panic(fmt.Errorf("chunkSizeLimitMB: %s", err))
+			}
+		case "concurrentWriters":
+			i++
+			if parsed, err := strconv.ParseInt(parameter.value, 0, 32); err != nil {
+				intValue := int(parsed)
+				mountOptions.concurrentWriters = &intValue
+			} else {
+				panic(fmt.Errorf("concurrentWriters: %s", err))
+			}
+		case "cacheDir":
+			mountOptions.cacheDir = &parameter.value
+		case "cacheCapacityMB":
+			if parsed, err := strconv.ParseInt(parameter.value, 0, 64); err != nil {
+				mountOptions.cacheSizeMB = &parsed
+			} else {
+				panic(fmt.Errorf("cacheCapacityMB: %s", err))
+			}
+		case "dataCenter":
+			mountOptions.dataCenter = &parameter.value
+		case "allowOthers":
+			if parsed, err := strconv.ParseBool(parameter.value); err != nil {
+				mountOptions.allowOthers = &parsed
+			} else {
+				panic(fmt.Errorf("allowOthers: %s", err))
+			}
+		case "umask":
+			mountOptions.umaskString = &parameter.value
+		case "nonempty":
+			if parsed, err := strconv.ParseBool(parameter.value); err != nil {
+				mountOptions.nonempty = &parsed
+			} else {
+				panic(fmt.Errorf("nonempty: %s", err))
+			}
+		case "volumeServerAccess":
+			mountOptions.volumeServerAccess = &parameter.value
+		case "map.uid":
+			mountOptions.uidMap = &parameter.value
+		case "map.gid":
+			mountOptions.gidMap = &parameter.value
+		case "readOnly":
+			if parsed, err := strconv.ParseBool(parameter.value); err != nil {
+				mountOptions.readOnly = &parsed
+			} else {
+				panic(fmt.Errorf("readOnly: %s", err))
+			}
+		case "cpuprofile":
+			mountCpuProfile = &parameter.value
+		case "memprofile":
+			mountMemProfile = &parameter.value
+		case "readRetryTime":
+			if parsed, err := time.ParseDuration(parameter.value); err != nil {
+				mountReadRetryTime = &parsed
+			} else {
+				panic(fmt.Errorf("readRetryTime: %s", err))
+			}
+		case "fusermount.path":
+			fusermountPath = parameter.value
+		}
+	}
+
+	// the master start the child, release it then finish himself
+	if masterProcess {
+		arg0, err := os.Executable()
+		if err != nil {
+			panic(err)
+		}
+
+		argv := append(os.Args, "-o", "child")
+
+		attr := os.ProcAttr{}
+		attr.Env = os.Environ()
+
+		child, err := os.StartProcess(arg0, argv, &attr)
+
+		if err != nil {
+			panic(fmt.Errorf("master process can not start child process: %s", err))
+		}
+
+		err = child.Release()
+
+		if err != nil {
+			panic(fmt.Errorf("master process can not release child process: %s", err))
+		}
+
+		return true
+	}
+
+	if fusermountPath != "" {
+		if err := os.Setenv("PATH", fusermountPath); err != nil {
+			panic(fmt.Errorf("setenv: %s", err))
+		}
+	} else if os.Getenv("PATH") == "" {
+		if err := os.Setenv("PATH", "/bin:/sbin:/usr/bin:/usr/sbin"); err != nil {
+			panic(fmt.Errorf("setenv: %s", err))
+		}
+	}
+
+	// just call "weed mount" command
+	return runMount(cmdMount, []string{})
+}
+
+var cmdFuse = &Command{
+	UsageLine: "fuse /mnt/mount/point -o \"filer=localhost:8888,filer.path=/\"",
+	Short:     "Allow use weed with linux's mount command",
+	Long: `Allow use weed with linux's mount command
+
+  You can use -t weed on mount command:
+  mv weed /sbin/mount.weed
+  mount -t weed fuse /mnt -o "filer=localhost:8888,filer.path=/"
+
+  Or you can use -t fuse on mount command:
+  mv weed /sbin/weed
+  mount -t fuse.weed fuse /mnt -o "filer=localhost:8888,filer.path=/"
+  mount -t fuse "weed#fuse" /mnt -o "filer=localhost:8888,filer.path=/"
+
+  To use without mess with your /sbin:
+  mount -t fuse./home/user/bin/weed fuse /mnt -o "filer=localhost:8888,filer.path=/"
+  mount -t fuse "/home/user/bin/weed#fuse" /mnt -o "filer=localhost:8888,filer.path=/"
+
+  To pass more than one parameter use quotes, example:
+  mount -t weed fuse /mnt -o "filer='192.168.0.1:8888,192.168.0.2:8888',filer.path=/"
+
+  To check valid options look "weed mount --help"
+  `,
+}

weed/command/mount.go

@@ -37,7 +37,7 @@ var (
 
 func init() {
 	cmdMount.Run = runMount // break init cycle
-	mountOptions.filer = cmdMount.Flag.String("filer", "localhost:8888", "weed filer location")
+	mountOptions.filer = cmdMount.Flag.String("filer", "localhost:8888", "comma-separated weed filer location")
 	mountOptions.filerMountRootPath = cmdMount.Flag.String("filer.path", "/", "mount this remote path from filer server")
 	mountOptions.dir = cmdMount.Flag.String("dir", ".", "mount weed filer to this directory")
 	mountOptions.dirAutoCreate = cmdMount.Flag.Bool("dirAutoCreate", false, "auto create the directory to mount to")

weed/command/mount_std.go

@@ -5,15 +5,18 @@ package command
 import (
 	"context"
 	"fmt"
-	"github.com/chrislusf/seaweedfs/weed/storage/types"
 	"os"
 	"os/user"
 	"path"
+	"path/filepath"
 	"runtime"
 	"strconv"
 	"strings"
+	"syscall"
 	"time"
 
+	"github.com/chrislusf/seaweedfs/weed/storage/types"
+
 	"github.com/chrislusf/seaweedfs/weed/filesys/meta_cache"
 
 	"github.com/seaweedfs/fuse"
@@ -49,11 +52,26 @@ func runMount(cmd *Command, args []string) bool {
 	return RunMount(&mountOptions, os.FileMode(umask))
 }
 
+func getParentInode(mountDir string) (uint64, error) {
+	parentDir := filepath.Clean(filepath.Join(mountDir, ".."))
+	fi, err := os.Stat(parentDir)
+	if err != nil {
+		return 0, err
+	}
+
+	stat, ok := fi.Sys().(*syscall.Stat_t)
+	if !ok {
+		return 0, nil
+	}
+
+	return stat.Ino, nil
+}
+
 func RunMount(option *MountOptions, umask os.FileMode) bool {
 
-	filer := *option.filer
+	filers := strings.Split(*option.filer, ",")
 	// parse filer grpc address
-	filerGrpcAddress, err := pb.ParseServerToGrpcAddress(filer)
+	filerGrpcAddresses, err := pb.ParseServersToGrpcAddresses(filers)
 	if err != nil {
 		glog.V(0).Infof("ParseFilerGrpcAddress: %v", err)
 		return true
@@ -64,34 +82,40 @@ func RunMount(option *MountOptions, umask os.FileMode) bool {
 	grpcDialOption := security.LoadClientTLS(util.GetViper(), "grpc.client")
 	var cipher bool
 	for i := 0; i < 10; i++ {
-		err = pb.WithGrpcFilerClient(filerGrpcAddress, grpcDialOption, func(client filer_pb.SeaweedFilerClient) error {
+		err = pb.WithOneOfGrpcFilerClients(filerGrpcAddresses, grpcDialOption, func(client filer_pb.SeaweedFilerClient) error {
 			resp, err := client.GetFilerConfiguration(context.Background(), &filer_pb.GetFilerConfigurationRequest{})
 			if err != nil {
-				return fmt.Errorf("get filer grpc address %s configuration: %v", filerGrpcAddress, err)
+				return fmt.Errorf("get filer grpc address %v configuration: %v", filerGrpcAddresses, err)
 			}
 			cipher = resp.Cipher
 			return nil
 		})
 		if err != nil {
-			glog.V(0).Infof("failed to talk to filer %s: %v", filerGrpcAddress, err)
+			glog.V(0).Infof("failed to talk to filer %v: %v", filerGrpcAddresses, err)
 			glog.V(0).Infof("wait for %d seconds ...", i+1)
 			time.Sleep(time.Duration(i+1) * time.Second)
 		}
 	}
 	if err != nil {
-		glog.Errorf("failed to talk to filer %s: %v", filerGrpcAddress, err)
+		glog.Errorf("failed to talk to filer %v: %v", filerGrpcAddresses, err)
 		return true
 	}
 
 	filerMountRootPath := *option.filerMountRootPath
 	dir := util.ResolvePath(*option.dir)
-	chunkSizeLimitMB := *mountOptions.chunkSizeLimitMB
+	parentInode, err := getParentInode(dir)
+	if err != nil {
+		glog.Errorf("failed to retrieve inode for parent directory of %s: %v", dir, err)
+		return true
+	}
 
 	fmt.Printf("This is SeaweedFS version %s %s %s\n", util.Version(), runtime.GOOS, runtime.GOARCH)
 	if dir == "" {
 		fmt.Printf("Please specify the mount directory via \"-dir\"")
 		return false
 	}
+
+	chunkSizeLimitMB := *mountOptions.chunkSizeLimitMB
 	if chunkSizeLimitMB <= 0 {
 		fmt.Printf("Please specify a reasonable buffer size.")
 		return false
@@ -145,7 +169,7 @@ func RunMount(option *MountOptions, umask os.FileMode) bool {
 
 	options := []fuse.MountOption{
 		fuse.VolumeName(mountName),
-		fuse.FSName(filer + ":" + filerMountRootPath),
+		fuse.FSName(*option.filer + ":" + filerMountRootPath),
 		fuse.Subtype("seaweedfs"),
 		// fuse.NoAppleDouble(), // include .DS_Store, otherwise can not delete non-empty folders
 		fuse.NoAppleXattr(),
@@ -181,8 +205,8 @@ func RunMount(option *MountOptions, umask os.FileMode) bool {
 
 	seaweedFileSystem := filesys.NewSeaweedFileSystem(&filesys.Option{
 		MountDirectory:     dir,
-		FilerAddress:       filer,
-		FilerGrpcAddress:   filerGrpcAddress,
+		FilerAddresses:     filers,
+		FilerGrpcAddresses: filerGrpcAddresses,
 		GrpcDialOption:     grpcDialOption,
 		FilerMountRootPath: mountRoot,
 		Collection:         *option.collection,
@@ -199,6 +223,7 @@ func RunMount(option *MountOptions, umask os.FileMode) bool {
 		MountMode:          mountMode,
 		MountCtime:         fileInfo.ModTime(),
 		MountMtime:         time.Now(),
+		MountParentInode:   parentInode,
 		Umask:              umask,
 		VolumeServerAccess: *mountOptions.volumeServerAccess,
 		Cipher:             cipher,
@@ -218,9 +243,10 @@ func RunMount(option *MountOptions, umask os.FileMode) bool {
 		c.Close()
 	})
 
-	glog.V(0).Infof("mounted %s%s to %s", filer, mountRoot, dir)
+	glog.V(0).Infof("mounted %s%s to %v", *option.filer, mountRoot, dir)
 	server := fs.New(c, nil)
 	seaweedFileSystem.Server = server
+	seaweedFileSystem.StartBackgroundTasks()
 	err = server.Serve(seaweedFileSystem)
 
 	// check if the mount process has an error to report

weed/command/scaffold.go

@@ -1,6 +1,7 @@
 package command
 
 import (
+	"github.com/chrislusf/seaweedfs/weed/command/scaffold"
 	"io/ioutil"
 	"path/filepath"
 )
@@ -35,17 +36,17 @@ func runScaffold(cmd *Command, args []string) bool {
 	content := ""
 	switch *config {
 	case "filer":
-		content = FILER_TOML_EXAMPLE
+		content = scaffold.Filer
 	case "notification":
-		content = NOTIFICATION_TOML_EXAMPLE
+		content = scaffold.Notification
 	case "replication":
-		content = REPLICATION_TOML_EXAMPLE
+		content = scaffold.Replication
 	case "security":
-		content = SECURITY_TOML_EXAMPLE
+		content = scaffold.Security
 	case "master":
-		content = MASTER_TOML_EXAMPLE
+		content = scaffold.Master
 	case "shell":
-		content = SHELL_TOML_EXAMPLE
+		content = scaffold.Shell
 	}
 	if content == "" {
 		println("need a valid -config option")
@@ -59,515 +60,3 @@ func runScaffold(cmd *Command, args []string) bool {
 	}
 	return true
 }
-
-const (
-	FILER_TOML_EXAMPLE = `
-# A sample TOML config file for SeaweedFS filer store
-# Used with "weed filer" or "weed server -filer"
-# Put this file to one of the location, with descending priority
-#    ./filer.toml
-#    $HOME/.seaweedfs/filer.toml
-#    /etc/seaweedfs/filer.toml
-
-####################################################
-# Customizable filer server options
-####################################################
-[filer.options]
-# with http DELETE, by default the filer would check whether a folder is empty.
-# recursive_delete will delete all sub folders and files, similar to "rm -Rf"
-recursive_delete = false
-# directories under this folder will be automatically creating a separate bucket
-buckets_folder = "/buckets"
-
-####################################################
-# The following are filer store options
-####################################################
-
-[leveldb2]
-# local on disk, mostly for simple single-machine setup, fairly scalable
-# faster than previous leveldb, recommended.
-enabled = true
-dir = "./filerldb2"					# directory to store level db files
-
-[leveldb3]
-# similar to leveldb2.
-# each bucket has its own meta store.
-enabled = false
-dir = "./filerldb3"					# directory to store level db files
-
-[rocksdb]
-# local on disk, similar to leveldb
-# since it is using a C wrapper, you need to install rocksdb and build it by yourself
-enabled = false
-dir = "./filerrdb"					# directory to store rocksdb files
-
-[mysql]  # or memsql, tidb
-# CREATE TABLE IF NOT EXISTS filemeta (
-#   dirhash     BIGINT               COMMENT 'first 64 bits of MD5 hash value of directory field',
-#   name        VARCHAR(1000) BINARY COMMENT 'directory or file name',
-#   directory   TEXT                 COMMENT 'full path to parent directory',
-#   meta        LONGBLOB,
-#   PRIMARY KEY (dirhash, name)
-# ) DEFAULT CHARSET=utf8;
-
-enabled = false
-hostname = "localhost"
-port = 3306
-username = "root"
-password = ""
-database = ""              # create or use an existing database
-connection_max_idle = 2
-connection_max_open = 100
-connection_max_lifetime_seconds = 0
-interpolateParams = false
-# if insert/upsert failing, you can disable upsert or update query syntax to match your RDBMS syntax:
-enableUpsert = true
-upsertQuery = """INSERT INTO ` + "`%s`" + ` (dirhash,name,directory,meta) VALUES(?,?,?,?) ON DUPLICATE KEY UPDATE meta = VALUES(meta)"""
-
-[mysql2]  # or memsql, tidb
-enabled = false
-createTable = """
-  CREATE TABLE IF NOT EXISTS ` + "`%s`" + ` (
-    dirhash BIGINT,
-    name VARCHAR(1000) BINARY,
-    directory TEXT,
-    meta LONGBLOB,
-    PRIMARY KEY (dirhash, name)
-  ) DEFAULT CHARSET=utf8;
-"""
-hostname = "localhost"
-port = 3306
-username = "root"
-password = ""
-database = ""              # create or use an existing database
-connection_max_idle = 2
-connection_max_open = 100
-connection_max_lifetime_seconds = 0
-interpolateParams = false
-# if insert/upsert failing, you can disable upsert or update query syntax to match your RDBMS syntax:
-enableUpsert = true
-upsertQuery = """INSERT INTO ` + "`%s`" + ` (dirhash,name,directory,meta) VALUES(?,?,?,?) ON DUPLICATE KEY UPDATE meta = VALUES(meta)"""
-
-[postgres] # or cockroachdb, YugabyteDB
-# CREATE TABLE IF NOT EXISTS filemeta (
-#   dirhash     BIGINT,
-#   name        VARCHAR(65535),
-#   directory   VARCHAR(65535),
-#   meta        bytea,
-#   PRIMARY KEY (dirhash, name)
-# );
-enabled = false
-hostname = "localhost"
-port = 5432
-username = "postgres"
-password = ""
-database = "postgres"          # create or use an existing database
-schema = ""
-sslmode = "disable"
-connection_max_idle = 100
-connection_max_open = 100
-connection_max_lifetime_seconds = 0
-# if insert/upsert failing, you can disable upsert or update query syntax to match your RDBMS syntax:
-enableUpsert = true
-upsertQuery = """INSERT INTO "%[1]s" (dirhash,name,directory,meta) VALUES($1,$2,$3,$4) ON CONFLICT (dirhash,name) DO UPDATE SET meta = EXCLUDED.meta WHERE "%[1]s".meta != EXCLUDED.meta"""
-
-[postgres2]
-enabled = false
-createTable = """
-  CREATE TABLE IF NOT EXISTS "%s" (
-    dirhash   BIGINT, 
-    name      VARCHAR(65535), 
-    directory VARCHAR(65535), 
-    meta      bytea, 
-    PRIMARY KEY (dirhash, name)
-  );
-"""
-hostname = "localhost"
-port = 5432
-username = "postgres"
-password = ""
-database = "postgres"          # create or use an existing database
-schema = ""
-sslmode = "disable"
-connection_max_idle = 100
-connection_max_open = 100
-connection_max_lifetime_seconds = 0
-# if insert/upsert failing, you can disable upsert or update query syntax to match your RDBMS syntax:
-enableUpsert = true
-upsertQuery = """INSERT INTO "%[1]s" (dirhash,name,directory,meta) VALUES($1,$2,$3,$4) ON CONFLICT (dirhash,name) DO UPDATE SET meta = EXCLUDED.meta WHERE "%[1]s".meta != EXCLUDED.meta"""
-
-[cassandra]
-# CREATE TABLE filemeta (
-#    directory varchar,
-#    name varchar,
-#    meta blob,
-#    PRIMARY KEY (directory, name)
-# ) WITH CLUSTERING ORDER BY (name ASC);
-enabled = false
-keyspace="seaweedfs"
-hosts=[
-	"localhost:9042",
-]
-username=""
-password=""
-# This changes the data layout. Only add new directories. Removing/Updating will cause data loss.
-superLargeDirectories = []
-
-[hbase]
-enabled = false
-zkquorum = ""
-table = "seaweedfs"
-
-[redis2]
-enabled = false
-address  = "localhost:6379"
-password = ""
-database = 0
-# This changes the data layout. Only add new directories. Removing/Updating will cause data loss.
-superLargeDirectories = []
-
-[redis_cluster2]
-enabled = false
-addresses = [
-    "localhost:30001",
-    "localhost:30002",
-    "localhost:30003",
-    "localhost:30004",
-    "localhost:30005",
-    "localhost:30006",
-]
-password = ""
-# allows reads from slave servers or the master, but all writes still go to the master
-readOnly = false
-# automatically use the closest Redis server for reads
-routeByLatency = false
-# This changes the data layout. Only add new directories. Removing/Updating will cause data loss.
-superLargeDirectories = []
-
-[etcd]
-enabled = false
-servers = "localhost:2379"
-timeout = "3s"
-
-[mongodb]
-enabled = false
-uri = "mongodb://localhost:27017"
-option_pool_size = 0
-database = "seaweedfs"
-
-[elastic7]
-enabled = false
-servers = [
-    "http://localhost1:9200",
-    "http://localhost2:9200",
-    "http://localhost3:9200",
-]
-username = ""
-password = ""
-sniff_enabled = false
-healthcheck_enabled = false
-# increase the value is recommend, be sure the value in Elastic is greater or equal here
-index.max_result_window = 10000
-
-
-
-##########################
-##########################
-# To add path-specific filer store:
-#
-# 1. Add a name following the store type separated by a dot ".". E.g., cassandra.tmp
-# 2. Add a location configuraiton. E.g., location = "/tmp/"
-# 3. Copy and customize all other configurations. 
-#     Make sure they are not the same if using the same store type!
-# 4. Set enabled to true
-#
-# The following is just using redis as an example
-##########################
-[redis2.tmp]
-enabled = false
-location = "/tmp/"
-address  = "localhost:6379"
-password = ""
-database = 1
-
-`
-
-	NOTIFICATION_TOML_EXAMPLE = `
-# A sample TOML config file for SeaweedFS filer store
-# Used by both "weed filer" or "weed server -filer" and "weed filer.replicate"
-# Put this file to one of the location, with descending priority
-#    ./notification.toml
-#    $HOME/.seaweedfs/notification.toml
-#    /etc/seaweedfs/notification.toml
-
-####################################################
-# notification
-# send and receive filer updates for each file to an external message queue
-####################################################
-[notification.log]
-# this is only for debugging perpose and does not work with "weed filer.replicate"
-enabled = false
-
-
-[notification.kafka]
-enabled = false
-hosts = [
-  "localhost:9092"
-]
-topic = "seaweedfs_filer"
-offsetFile = "./last.offset"
-offsetSaveIntervalSeconds = 10
-
-
-[notification.aws_sqs]
-# experimental, let me know if it works
-enabled = false
-aws_access_key_id     = ""        # if empty, loads from the shared credentials file (~/.aws/credentials).
-aws_secret_access_key = ""        # if empty, loads from the shared credentials file (~/.aws/credentials).
-region = "us-east-2"
-sqs_queue_name = "my_filer_queue" # an existing queue name
-
-
-[notification.google_pub_sub]
-# read credentials doc at https://cloud.google.com/docs/authentication/getting-started
-enabled = false
-google_application_credentials = "/path/to/x.json" # path to json credential file
-project_id = ""                       # an existing project id
-topic = "seaweedfs_filer_topic"       # a topic, auto created if does not exists
-
-[notification.gocdk_pub_sub]
-# The Go Cloud Development Kit (https://gocloud.dev).
-# PubSub API (https://godoc.org/gocloud.dev/pubsub).
-# Supports AWS SNS/SQS, Azure Service Bus, Google PubSub, NATS and RabbitMQ.
-enabled = false
-# This URL will Dial the RabbitMQ server at the URL in the environment
-# variable RABBIT_SERVER_URL and open the exchange "myexchange".
-# The exchange must have already been created by some other means, like
-# the RabbitMQ management plugin. Сreate myexchange of type fanout and myqueue then
-# create binding myexchange => myqueue
-topic_url = "rabbit://myexchange"
-sub_url = "rabbit://myqueue"
-`
-
-	REPLICATION_TOML_EXAMPLE = `
-# A sample TOML config file for replicating SeaweedFS filer
-# Used with "weed filer.replicate"
-# Put this file to one of the location, with descending priority
-#    ./replication.toml
-#    $HOME/.seaweedfs/replication.toml
-#    /etc/seaweedfs/replication.toml
-
-[source.filer]
-enabled = true
-grpcAddress = "localhost:18888"
-# all files under this directory tree are replicated.
-# this is not a directory on your hard drive, but on your filer.
-# i.e., all files with this "prefix" are sent to notification message queue.
-directory = "/buckets"
-
-[sink.local]
-enabled = false
-directory = "/data"
-# all replicated files are under modified time as yyyy-mm-dd directories
-# so each date directory contains all new and updated files.
-is_incremental = false
-
-[sink.local_incremental]
-# all replicated files are under modified time as yyyy-mm-dd directories
-# so each date directory contains all new and updated files.
-enabled = false
-directory = "/backup"
-
-[sink.filer]
-enabled = false
-grpcAddress = "localhost:18888"
-# all replicated files are under this directory tree
-# this is not a directory on your hard drive, but on your filer.
-# i.e., all received files will be "prefixed" to this directory.
-directory = "/backup"
-replication = ""
-collection = ""
-ttlSec = 0
-is_incremental = false
-
-[sink.s3]
-# read credentials doc at https://docs.aws.amazon.com/sdk-for-go/v1/developer-guide/sessions.html
-# default loads credentials from the shared credentials file (~/.aws/credentials).
-enabled = false
-aws_access_key_id     = ""     # if empty, loads from the shared credentials file (~/.aws/credentials).
-aws_secret_access_key = ""     # if empty, loads from the shared credentials file (~/.aws/credentials).
-region = "us-east-2"
-bucket = "your_bucket_name"    # an existing bucket
-directory = "/"                # destination directory
-endpoint = ""
-is_incremental = false
-
-[sink.google_cloud_storage]
-# read credentials doc at https://cloud.google.com/docs/authentication/getting-started
-enabled = false
-google_application_credentials = "/path/to/x.json" # path to json credential file
-bucket = "your_bucket_seaweedfs"    # an existing bucket
-directory = "/"                     # destination directory
-is_incremental = false
-
-[sink.azure]
-# experimental, let me know if it works
-enabled = false
-account_name = ""
-account_key  = ""
-container = "mycontainer"      # an existing container
-directory = "/"                # destination directory
-is_incremental = false
-
-[sink.backblaze]
-enabled = false
-b2_account_id = ""
-b2_master_application_key  = ""
-bucket = "mybucket"            # an existing bucket
-directory = "/"                # destination directory
-is_incremental = false
-
-`
-
-	SECURITY_TOML_EXAMPLE = `
-# Put this file to one of the location, with descending priority
-#    ./security.toml
-#    $HOME/.seaweedfs/security.toml
-#    /etc/seaweedfs/security.toml
-# this file is read by master, volume server, and filer
-
-# the jwt signing key is read by master and volume server.
-# a jwt defaults to expire after 10 seconds.
-[jwt.signing]
-key = ""
-expires_after_seconds = 10           # seconds
-
-# jwt for read is only supported with master+volume setup. Filer does not support this mode.
-[jwt.signing.read]
-key = ""
-expires_after_seconds = 10           # seconds
-
-# all grpc tls authentications are mutual
-# the values for the following ca, cert, and key are paths to the PERM files.
-# the host name is not checked, so the PERM files can be shared.
-[grpc]
-ca = ""
-# Set wildcard domain for enable TLS authentication by common names
-allowed_wildcard_domain = "" # .mycompany.com
-
-[grpc.volume]
-cert = ""
-key  = ""
-allowed_commonNames = ""	# comma-separated SSL certificate common names
-
-[grpc.master]
-cert = ""
-key  = ""
-allowed_commonNames = ""	# comma-separated SSL certificate common names
-
-[grpc.filer]
-cert = ""
-key  = ""
-allowed_commonNames = ""	# comma-separated SSL certificate common names
-
-[grpc.msg_broker]
-cert = ""
-key  = ""
-allowed_commonNames = ""	# comma-separated SSL certificate common names
-
-# use this for any place needs a grpc client
-# i.e., "weed backup|benchmark|filer.copy|filer.replicate|mount|s3|upload"
-[grpc.client]
-cert = ""
-key  = ""
-
-# volume server https options
-# Note: work in progress!
-#     this does not work with other clients, e.g., "weed filer|mount" etc, yet.
-[https.client]
-enabled = true
-[https.volume]
-cert = ""
-key  = ""
-
-
-`
-
-	MASTER_TOML_EXAMPLE = `
-# Put this file to one of the location, with descending priority
-#    ./master.toml
-#    $HOME/.seaweedfs/master.toml
-#    /etc/seaweedfs/master.toml
-# this file is read by master
-
-[master.maintenance]
-# periodically run these scripts are the same as running them from 'weed shell'
-scripts = """
-  lock
-  ec.encode -fullPercent=95 -quietFor=1h
-  ec.rebuild -force
-  ec.balance -force
-  volume.balance -force
-  volume.fix.replication
-  unlock
-"""
-sleep_minutes = 17          # sleep minutes between each script execution
-
-[master.filer]
-default = "localhost:8888"    # used by maintenance scripts if the scripts needs to use fs related commands
-
-
-[master.sequencer]
-type = "raft"     # Choose [raft|etcd|snowflake] type for storing the file id sequence
-# when sequencer.type = etcd, set listen client urls of etcd cluster that store file id sequence
-# example : http://127.0.0.1:2379,http://127.0.0.1:2389
-sequencer_etcd_urls = "http://127.0.0.1:2379"
-
-
-# configurations for tiered cloud storage
-# old volumes are transparently moved to cloud for cost efficiency
-[storage.backend]
-	[storage.backend.s3.default]
-	enabled = false
-	aws_access_key_id     = ""     # if empty, loads from the shared credentials file (~/.aws/credentials).
-	aws_secret_access_key = ""     # if empty, loads from the shared credentials file (~/.aws/credentials).
-	region = "us-east-2"
-	bucket = "your_bucket_name"    # an existing bucket
-	endpoint = ""
-
-# create this number of logical volumes if no more writable volumes
-# count_x means how many copies of data.
-# e.g.:
-#   000 has only one copy, copy_1
-#   010 and 001 has two copies, copy_2
-#   011 has only 3 copies, copy_3
-[master.volume_growth]
-copy_1 = 7                # create 1 x 7 = 7 actual volumes
-copy_2 = 6                # create 2 x 6 = 12 actual volumes
-copy_3 = 3                # create 3 x 3 = 9 actual volumes
-copy_other = 1            # create n x 1 = n actual volumes
-
-# configuration flags for replication
-[master.replication]
-# any replication counts should be considered minimums. If you specify 010 and
-# have 3 different racks, that's still considered writable. Writes will still
-# try to replicate to all available volumes. You should only use this option
-# if you are doing your own replication or periodic sync of volumes.
-treat_replication_as_minimums = false
-
-`
-	SHELL_TOML_EXAMPLE = `
-
-[cluster]
-default = "c1"
-
-[cluster.c1]
-master = "localhost:9333"    # comma-separated master servers
-filer = "localhost:8888"     # filer host and port
-
-[cluster.c2]
-master = ""
-filer = ""
-
-`
-)

weed/command/scaffold/example.go

@@ -0,0 +1,21 @@
+package scaffold
+
+import _ "embed"
+
+//go:embed filer.toml
+var Filer string
+
+//go:embed notification.toml
+var Notification string
+
+//go:embed replication.toml
+var Replication string
+
+//go:embed security.toml
+var Security string
+
+//go:embed master.toml
+var Master string
+
+//go:embed shell.toml
+var Shell string

weed/command/scaffold/filer.toml

@@ -0,0 +1,234 @@
+# A sample TOML config file for SeaweedFS filer store
+# Used with "weed filer" or "weed server -filer"
+# Put this file to one of the location, with descending priority
+#    ./filer.toml
+#    $HOME/.seaweedfs/filer.toml
+#    /etc/seaweedfs/filer.toml
+
+####################################################
+# Customizable filer server options
+####################################################
+[filer.options]
+# with http DELETE, by default the filer would check whether a folder is empty.
+# recursive_delete will delete all sub folders and files, similar to "rm -Rf"
+recursive_delete = false
+# directories under this folder will be automatically creating a separate bucket
+buckets_folder = "/buckets"
+
+####################################################
+# The following are filer store options
+####################################################
+
+[leveldb2]
+# local on disk, mostly for simple single-machine setup, fairly scalable
+# faster than previous leveldb, recommended.
+enabled = true
+dir = "./filerldb2"                    # directory to store level db files
+
+[leveldb3]
+# similar to leveldb2.
+# each bucket has its own meta store.
+enabled = false
+dir = "./filerldb3"                    # directory to store level db files
+
+[rocksdb]
+# local on disk, similar to leveldb
+# since it is using a C wrapper, you need to install rocksdb and build it by yourself
+enabled = false
+dir = "./filerrdb"                    # directory to store rocksdb files
+
+[sqlite]
+# local on disk, similar to leveldb
+enabled = false
+dbFile = "./filer.db"                # sqlite db file
+
+[mysql]  # or memsql, tidb
+# CREATE TABLE IF NOT EXISTS filemeta (
+#   dirhash     BIGINT               COMMENT 'first 64 bits of MD5 hash value of directory field',
+#   name        VARCHAR(1000) BINARY COMMENT 'directory or file name',
+#   directory   TEXT                 COMMENT 'full path to parent directory',
+#   meta        LONGBLOB,
+#   PRIMARY KEY (dirhash, name)
+# ) DEFAULT CHARSET=utf8;
+
+enabled = false
+hostname = "localhost"
+port = 3306
+username = "root"
+password = ""
+database = ""              # create or use an existing database
+connection_max_idle = 2
+connection_max_open = 100
+connection_max_lifetime_seconds = 0
+interpolateParams = false
+# if insert/upsert failing, you can disable upsert or update query syntax to match your RDBMS syntax:
+enableUpsert = true
+upsertQuery = """INSERT INTO ` + "`%s`" + ` (dirhash,name,directory,meta) VALUES(?,?,?,?) ON DUPLICATE KEY UPDATE meta = VALUES(meta)"""
+
+[mysql2]  # or memsql, tidb
+enabled = false
+createTable = """
+  CREATE TABLE IF NOT EXISTS ` + "`%s`" + ` (
+    dirhash BIGINT,
+    name VARCHAR(1000) BINARY,
+    directory TEXT,
+    meta LONGBLOB,
+    PRIMARY KEY (dirhash, name)
+  ) DEFAULT CHARSET=utf8;
+"""
+hostname = "localhost"
+port = 3306
+username = "root"
+password = ""
+database = ""              # create or use an existing database
+connection_max_idle = 2
+connection_max_open = 100
+connection_max_lifetime_seconds = 0
+interpolateParams = false
+# if insert/upsert failing, you can disable upsert or update query syntax to match your RDBMS syntax:
+enableUpsert = true
+upsertQuery = """INSERT INTO ` + "`%s`" + ` (dirhash,name,directory,meta) VALUES(?,?,?,?) ON DUPLICATE KEY UPDATE meta = VALUES(meta)"""
+
+[postgres] # or cockroachdb, YugabyteDB
+# CREATE TABLE IF NOT EXISTS filemeta (
+#   dirhash     BIGINT,
+#   name        VARCHAR(65535),
+#   directory   VARCHAR(65535),
+#   meta        bytea,
+#   PRIMARY KEY (dirhash, name)
+# );
+enabled = false
+hostname = "localhost"
+port = 5432
+username = "postgres"
+password = ""
+database = "postgres"          # create or use an existing database
+schema = ""
+sslmode = "disable"
+connection_max_idle = 100
+connection_max_open = 100
+connection_max_lifetime_seconds = 0
+# if insert/upsert failing, you can disable upsert or update query syntax to match your RDBMS syntax:
+enableUpsert = true
+upsertQuery = """INSERT INTO "%[1]s" (dirhash,name,directory,meta) VALUES($1,$2,$3,$4) ON CONFLICT (dirhash,name) DO UPDATE SET meta = EXCLUDED.meta WHERE "%[1]s".meta != EXCLUDED.meta"""
+
+[postgres2]
+enabled = false
+createTable = """
+  CREATE TABLE IF NOT EXISTS "%s" (
+    dirhash   BIGINT,
+    name      VARCHAR(65535),
+    directory VARCHAR(65535),
+    meta      bytea,
+    PRIMARY KEY (dirhash, name)
+  );
+"""
+hostname = "localhost"
+port = 5432
+username = "postgres"
+password = ""
+database = "postgres"          # create or use an existing database
+schema = ""
+sslmode = "disable"
+connection_max_idle = 100
+connection_max_open = 100
+connection_max_lifetime_seconds = 0
+# if insert/upsert failing, you can disable upsert or update query syntax to match your RDBMS syntax:
+enableUpsert = true
+upsertQuery = """INSERT INTO "%[1]s" (dirhash,name,directory,meta) VALUES($1,$2,$3,$4) ON CONFLICT (dirhash,name) DO UPDATE SET meta = EXCLUDED.meta WHERE "%[1]s".meta != EXCLUDED.meta"""
+
+[cassandra]
+# CREATE TABLE filemeta (
+#    directory varchar,
+#    name varchar,
+#    meta blob,
+#    PRIMARY KEY (directory, name)
+# ) WITH CLUSTERING ORDER BY (name ASC);
+enabled = false
+keyspace = "seaweedfs"
+hosts = [
+    "localhost:9042",
+]
+username = ""
+password = ""
+# This changes the data layout. Only add new directories. Removing/Updating will cause data loss.
+superLargeDirectories = []
+# Name of the datacenter local to this filer, used as host selection fallback.
+localDC = ""
+
+[hbase]
+enabled = false
+zkquorum = ""
+table = "seaweedfs"
+
+[redis2]
+enabled = false
+address = "localhost:6379"
+password = ""
+database = 0
+# This changes the data layout. Only add new directories. Removing/Updating will cause data loss.
+superLargeDirectories = []
+
+[redis_cluster2]
+enabled = false
+addresses = [
+    "localhost:30001",
+    "localhost:30002",
+    "localhost:30003",
+    "localhost:30004",
+    "localhost:30005",
+    "localhost:30006",
+]
+password = ""
+# allows reads from slave servers or the master, but all writes still go to the master
+readOnly = false
+# automatically use the closest Redis server for reads
+routeByLatency = false
+# This changes the data layout. Only add new directories. Removing/Updating will cause data loss.
+superLargeDirectories = []
+
+[etcd]
+enabled = false
+servers = "localhost:2379"
+timeout = "3s"
+
+[mongodb]
+enabled = false
+uri = "mongodb://localhost:27017"
+option_pool_size = 0
+database = "seaweedfs"
+
+[elastic7]
+enabled = false
+servers = [
+    "http://localhost1:9200",
+    "http://localhost2:9200",
+    "http://localhost3:9200",
+]
+username = ""
+password = ""
+sniff_enabled = false
+healthcheck_enabled = false
+# increase the value is recommend, be sure the value in Elastic is greater or equal here
+index.max_result_window = 10000
+
+
+
+##########################
+##########################
+# To add path-specific filer store:
+#
+# 1. Add a name following the store type separated by a dot ".". E.g., cassandra.tmp
+# 2. Add a location configuraiton. E.g., location = "/tmp/"
+# 3. Copy and customize all other configurations.
+#     Make sure they are not the same if using the same store type!
+# 4. Set enabled to true
+#
+# The following is just using redis as an example
+##########################
+[redis2.tmp]
+enabled = false
+location = "/tmp/"
+address = "localhost:6379"
+password = ""
+database = 1

weed/command/scaffold/master.toml

@@ -0,0 +1,60 @@
+# Put this file to one of the location, with descending priority
+#    ./master.toml
+#    $HOME/.seaweedfs/master.toml
+#    /etc/seaweedfs/master.toml
+# this file is read by master
+
+[master.maintenance]
+# periodically run these scripts are the same as running them from 'weed shell'
+scripts = """
+  lock
+  ec.encode -fullPercent=95 -quietFor=1h
+  ec.rebuild -force
+  ec.balance -force
+  volume.balance -force
+  volume.fix.replication
+  unlock
+"""
+sleep_minutes = 17          # sleep minutes between each script execution
+
+[master.filer]
+default = "localhost:8888"    # used by maintenance scripts if the scripts needs to use fs related commands
+
+
+[master.sequencer]
+type = "raft"     # Choose [raft|etcd|snowflake] type for storing the file id sequence
+# when sequencer.type = etcd, set listen client urls of etcd cluster that store file id sequence
+# example : http://127.0.0.1:2379,http://127.0.0.1:2389
+sequencer_etcd_urls = "http://127.0.0.1:2379"
+
+
+# configurations for tiered cloud storage
+# old volumes are transparently moved to cloud for cost efficiency
+[storage.backend]
+[storage.backend.s3.default]
+enabled = false
+aws_access_key_id = ""         # if empty, loads from the shared credentials file (~/.aws/credentials).
+aws_secret_access_key = ""     # if empty, loads from the shared credentials file (~/.aws/credentials).
+region = "us-east-2"
+bucket = "your_bucket_name"    # an existing bucket
+endpoint = ""
+
+# create this number of logical volumes if no more writable volumes
+# count_x means how many copies of data.
+# e.g.:
+#   000 has only one copy, copy_1
+#   010 and 001 has two copies, copy_2
+#   011 has only 3 copies, copy_3
+[master.volume_growth]
+copy_1 = 7                # create 1 x 7 = 7 actual volumes
+copy_2 = 6                # create 2 x 6 = 12 actual volumes
+copy_3 = 3                # create 3 x 3 = 9 actual volumes
+copy_other = 1            # create n x 1 = n actual volumes
+
+# configuration flags for replication
+[master.replication]
+# any replication counts should be considered minimums. If you specify 010 and
+# have 3 different racks, that's still considered writable. Writes will still
+# try to replicate to all available volumes. You should only use this option
+# if you are doing your own replication or periodic sync of volumes.
+treat_replication_as_minimums = false

weed/command/scaffold/notification.toml

@@ -0,0 +1,54 @@
+# A sample TOML config file for SeaweedFS filer store
+# Used by both "weed filer" or "weed server -filer" and "weed filer.replicate"
+# Put this file to one of the location, with descending priority
+#    ./notification.toml
+#    $HOME/.seaweedfs/notification.toml
+#    /etc/seaweedfs/notification.toml
+
+####################################################
+# notification
+# send and receive filer updates for each file to an external message queue
+####################################################
+[notification.log]
+# this is only for debugging perpose and does not work with "weed filer.replicate"
+enabled = false
+
+
+[notification.kafka]
+enabled = false
+hosts = [
+    "localhost:9092"
+]
+topic = "seaweedfs_filer"
+offsetFile = "./last.offset"
+offsetSaveIntervalSeconds = 10
+
+
+[notification.aws_sqs]
+# experimental, let me know if it works
+enabled = false
+aws_access_key_id = ""        # if empty, loads from the shared credentials file (~/.aws/credentials).
+aws_secret_access_key = ""        # if empty, loads from the shared credentials file (~/.aws/credentials).
+region = "us-east-2"
+sqs_queue_name = "my_filer_queue" # an existing queue name
+
+
+[notification.google_pub_sub]
+# read credentials doc at https://cloud.google.com/docs/authentication/getting-started
+enabled = false
+google_application_credentials = "/path/to/x.json" # path to json credential file
+project_id = ""                       # an existing project id
+topic = "seaweedfs_filer_topic"       # a topic, auto created if does not exists
+
+[notification.gocdk_pub_sub]
+# The Go Cloud Development Kit (https://gocloud.dev).
+# PubSub API (https://godoc.org/gocloud.dev/pubsub).
+# Supports AWS SNS/SQS, Azure Service Bus, Google PubSub, NATS and RabbitMQ.
+enabled = false
+# This URL will Dial the RabbitMQ server at the URL in the environment
+# variable RABBIT_SERVER_URL and open the exchange "myexchange".
+# The exchange must have already been created by some other means, like
+# the RabbitMQ management plugin. Сreate myexchange of type fanout and myqueue then
+# create binding myexchange => myqueue
+topic_url = "rabbit://myexchange"
+sub_url = "rabbit://myqueue"

weed/command/scaffold/replication.toml

@@ -0,0 +1,71 @@
+# A sample TOML config file for replicating SeaweedFS filer
+# Used with "weed filer.backup"
+# Using with "weed filer.replicate" is deprecated.
+# Put this file to one of the location, with descending priority
+#    ./replication.toml
+#    $HOME/.seaweedfs/replication.toml
+#    /etc/seaweedfs/replication.toml
+
+[source.filer]  # deprecated. Only useful with "weed filer.replicate"
+enabled = true
+grpcAddress = "localhost:18888"
+# all files under this directory tree are replicated.
+# this is not a directory on your hard drive, but on your filer.
+# i.e., all files with this "prefix" are sent to notification message queue.
+directory = "/buckets"
+
+[sink.local]
+enabled = false
+directory = "/data"
+# all replicated files are under modified time as yyyy-mm-dd directories
+# so each date directory contains all new and updated files.
+is_incremental = false
+
+[sink.filer]
+enabled = false
+grpcAddress = "localhost:18888"
+# all replicated files are under this directory tree
+# this is not a directory on your hard drive, but on your filer.
+# i.e., all received files will be "prefixed" to this directory.
+directory = "/backup"
+replication = ""
+collection = ""
+ttlSec = 0
+is_incremental = false
+
+[sink.s3]
+# read credentials doc at https://docs.aws.amazon.com/sdk-for-go/v1/developer-guide/sessions.html
+# default loads credentials from the shared credentials file (~/.aws/credentials).
+enabled = false
+aws_access_key_id = ""         # if empty, loads from the shared credentials file (~/.aws/credentials).
+aws_secret_access_key = ""     # if empty, loads from the shared credentials file (~/.aws/credentials).
+region = "us-east-2"
+bucket = "your_bucket_name"    # an existing bucket
+directory = "/"                # destination directory
+endpoint = ""
+is_incremental = false
+
+[sink.google_cloud_storage]
+# read credentials doc at https://cloud.google.com/docs/authentication/getting-started
+enabled = false
+google_application_credentials = "/path/to/x.json" # path to json credential file
+bucket = "your_bucket_seaweedfs"    # an existing bucket
+directory = "/"                     # destination directory
+is_incremental = false
+
+[sink.azure]
+# experimental, let me know if it works
+enabled = false
+account_name = ""
+account_key = ""
+container = "mycontainer"      # an existing container
+directory = "/"                # destination directory
+is_incremental = false
+
+[sink.backblaze]
+enabled = false
+b2_account_id = ""
+b2_master_application_key = ""
+bucket = "mybucket"            # an existing bucket
+directory = "/"                # destination directory
+is_incremental = false

weed/command/scaffold/security.toml

@@ -0,0 +1,60 @@
+# Put this file to one of the location, with descending priority
+#    ./security.toml
+#    $HOME/.seaweedfs/security.toml
+#    /etc/seaweedfs/security.toml
+# this file is read by master, volume server, and filer
+
+# the jwt signing key is read by master and volume server.
+# a jwt defaults to expire after 10 seconds.
+[jwt.signing]
+key = ""
+expires_after_seconds = 10           # seconds
+
+# jwt for read is only supported with master+volume setup. Filer does not support this mode.
+[jwt.signing.read]
+key = ""
+expires_after_seconds = 10           # seconds
+
+# all grpc tls authentications are mutual
+# the values for the following ca, cert, and key are paths to the PERM files.
+# the host name is not checked, so the PERM files can be shared.
+[grpc]
+ca = ""
+# Set wildcard domain for enable TLS authentication by common names
+allowed_wildcard_domain = "" # .mycompany.com
+
+[grpc.volume]
+cert = ""
+key = ""
+allowed_commonNames = ""    # comma-separated SSL certificate common names
+
+[grpc.master]
+cert = ""
+key = ""
+allowed_commonNames = ""    # comma-separated SSL certificate common names
+
+[grpc.filer]
+cert = ""
+key = ""
+allowed_commonNames = ""    # comma-separated SSL certificate common names
+
+[grpc.msg_broker]
+cert = ""
+key = ""
+allowed_commonNames = ""    # comma-separated SSL certificate common names
+
+# use this for any place needs a grpc client
+# i.e., "weed backup|benchmark|filer.copy|filer.replicate|mount|s3|upload"
+[grpc.client]
+cert = ""
+key = ""
+
+# volume server https options
+# Note: work in progress!
+#     this does not work with other clients, e.g., "weed filer|mount" etc, yet.
+[https.client]
+enabled = true
+[https.volume]
+cert = ""
+key = ""
+

weed/command/scaffold/shell.toml

@@ -0,0 +1,10 @@
+[cluster]
+default = "c1"
+
+[cluster.c1]
+master = "localhost:9333"    # comma-separated master servers
+filer = "localhost:8888"     # filer host and port
+
+[cluster.c2]
+master = ""
+filer = ""

weed/command/server.go

@@ -107,7 +107,7 @@ func init() {
 	serverOptions.v.indexType = cmdServer.Flag.String("volume.index", "memory", "Choose [memory|leveldb|leveldbMedium|leveldbLarge] mode for memory~performance balance.")
 	serverOptions.v.diskType = cmdServer.Flag.String("volume.disk", "", "[hdd|ssd|<tag>] hard drive or solid state drive or any tag")
 	serverOptions.v.fixJpgOrientation = cmdServer.Flag.Bool("volume.images.fix.orientation", false, "Adjust jpg orientation when uploading.")
-	serverOptions.v.readRedirect = cmdServer.Flag.Bool("volume.read.redirect", true, "Redirect moved or non-local volumes.")
+	serverOptions.v.readMode = cmdServer.Flag.String("volume.readMode", "proxy", "[local|proxy|redirect] how to deal with non-local volume: 'not found|read in remote node|redirect volume location'.")
 	serverOptions.v.compactionMBPerSecond = cmdServer.Flag.Int("volume.compactionMBps", 0, "limit compaction speed in mega bytes per second")
 	serverOptions.v.fileSizeLimitMB = cmdServer.Flag.Int("volume.fileSizeLimitMB", 256, "limit file size to avoid out of memory")
 	serverOptions.v.concurrentUploadLimitMB = cmdServer.Flag.Int("volume.concurrentUploadLimitMB", 64, "limit total concurrent upload size")
@@ -245,7 +245,7 @@ func runServer(cmd *Command, args []string) bool {
 
 	// start volume server
 	if *isStartingVolumeServer {
-		minFreeSpaces := util.MustParseMinFreeSpace(*minFreeSpace, *minFreeSpacePercent)
+		minFreeSpaces := util.MustParseMinFreeSpace(*volumeMinFreeSpace, *volumeMinFreeSpacePercent)
 		go serverOptions.v.startVolumeServer(*volumeDataFolders, *volumeMaxDataVolumeCounts, *serverWhiteListOption, minFreeSpaces)
 	}
 

weed/command/upload.go

@@ -84,7 +84,7 @@ func runUpload(cmd *Command, args []string) bool {
 		if *upload.dir == "" {
 			return false
 		}
-		filepath.Walk(util.ResolvePath(*upload.dir), func(path string, info os.FileInfo, err error) error {
+		err = filepath.Walk(util.ResolvePath(*upload.dir), func(path string, info os.FileInfo, err error) error {
 			if err == nil {
 				if !info.IsDir() {
 					if *upload.include != "" {
@@ -108,12 +108,21 @@ func runUpload(cmd *Command, args []string) bool {
 			}
 			return err
 		})
+		if err != nil {
+			fmt.Println(err.Error())
+			return false
+		}
 	} else {
 		parts, e := operation.NewFileParts(args)
 		if e != nil {
 			fmt.Println(e.Error())
+			return false
+		}
+		results, err := operation.SubmitFiles(func() string { return *upload.master }, grpcDialOption, parts, *upload.replication, *upload.collection, *upload.dataCenter, *upload.ttl, *upload.diskType, *upload.maxMB, *upload.usePublicUrl)
+		if err != nil {
+			fmt.Println(err.Error())
+			return false
 		}
-		results, _ := operation.SubmitFiles(func() string { return *upload.master }, grpcDialOption, parts, *upload.replication, *upload.collection, *upload.dataCenter, *upload.ttl, *upload.diskType, *upload.maxMB, *upload.usePublicUrl)
 		bytes, _ := json.Marshal(results)
 		fmt.Println(string(bytes))
 	}

weed/command/volume.go

@@ -51,7 +51,7 @@ type VolumeServerOptions struct {
 	indexType               *string
 	diskType                *string
 	fixJpgOrientation       *bool
-	readRedirect            *bool
+	readMode                *string
 	cpuProfile              *string
 	memProfile              *string
 	compactionMBPerSecond   *int
@@ -80,7 +80,7 @@ func init() {
 	v.indexType = cmdVolume.Flag.String("index", "memory", "Choose [memory|leveldb|leveldbMedium|leveldbLarge] mode for memory~performance balance.")
 	v.diskType = cmdVolume.Flag.String("disk", "", "[hdd|ssd|<tag>] hard drive or solid state drive or any tag")
 	v.fixJpgOrientation = cmdVolume.Flag.Bool("images.fix.orientation", false, "Adjust jpg orientation when uploading.")
-	v.readRedirect = cmdVolume.Flag.Bool("read.redirect", true, "Redirect moved or non-local volumes.")
+	v.readMode = cmdVolume.Flag.String("readMode", "proxy", "[local|proxy|redirect] how to deal with non-local volume: 'not found|proxy to remote node|redirect volume location'.")
 	v.cpuProfile = cmdVolume.Flag.String("cpuprofile", "", "cpu profile output file")
 	v.memProfile = cmdVolume.Flag.String("memprofile", "", "memory profile output file")
 	v.compactionMBPerSecond = cmdVolume.Flag.Int("compactionMBps", 0, "limit background compaction or copying speed in mega bytes per second")
@@ -228,7 +228,7 @@ func (v VolumeServerOptions) startVolumeServer(volumeFolders, maxVolumeCounts, v
 		volumeNeedleMapKind,
 		strings.Split(masters, ","), 5, *v.dataCenter, *v.rack,
 		v.whiteList,
-		*v.fixJpgOrientation, *v.readRedirect,
+		*v.fixJpgOrientation, *v.readMode,
 		*v.compactionMBPerSecond,
 		*v.fileSizeLimitMB,
 		int64(*v.concurrentUploadLimitMB)*1024*1024,
@@ -259,6 +259,7 @@ func (v VolumeServerOptions) startVolumeServer(volumeFolders, maxVolumeCounts, v
 
 		// Stop heartbeats
 		if !volumeServer.StopHeartbeat() {
+			volumeServer.SetStopping()
 			glog.V(0).Infof("stop send heartbeat and wait %d seconds until shutdown ...", *v.preStopSeconds)
 			time.Sleep(time.Duration(*v.preStopSeconds) * time.Second)
 		}

weed/filer/abstract_sql/abstract_sql_store.go

@@ -10,6 +10,7 @@ import (
 	"github.com/chrislusf/seaweedfs/weed/util"
 	"strings"
 	"sync"
+	"time"
 )
 
 type SqlGenerator interface {
@@ -32,6 +33,9 @@ type AbstractSqlStore struct {
 	dbsLock            sync.Mutex
 }
 
+func (store *AbstractSqlStore) CanDropWholeBucket() bool {
+	return store.SupportBucketTable
+}
 func (store *AbstractSqlStore) OnBucketCreation(bucket string) {
 	store.dbsLock.Lock()
 	defer store.dbsLock.Unlock()
@@ -258,7 +262,7 @@ func (store *AbstractSqlStore) DeleteEntry(ctx context.Context, fullpath util.Fu
 	return nil
 }
 
-func (store *AbstractSqlStore) DeleteFolderChildren(ctx context.Context, fullpath util.FullPath) error {
+func (store *AbstractSqlStore) DeleteFolderChildren(ctx context.Context, fullpath util.FullPath, limit int64) error {
 
 	db, bucket, shortPath, err := store.getTxOrDB(ctx, fullpath, true)
 	if err != nil {
@@ -276,18 +280,23 @@ func (store *AbstractSqlStore) DeleteFolderChildren(ctx context.Context, fullpat
 		}
 	}
 
-	glog.V(4).Infof("delete %s SQL %s %d", string(shortPath), store.GetSqlDeleteFolderChildren(bucket), util.HashStringToLong(string(shortPath)))
+	for {
+		glog.V(4).Infof("delete %s SQL %s %d", string(shortPath), store.GetSqlDeleteFolderChildren(bucket), util.HashStringToLong(string(shortPath)))
+		res, err := db.ExecContext(ctx, store.GetSqlDeleteFolderChildren(bucket), util.HashStringToLong(string(shortPath)), string(shortPath), limit)
+		if err != nil {
+			return fmt.Errorf("deleteFolderChildren %s: %s", fullpath, err)
+		}
 
-	res, err := db.ExecContext(ctx, store.GetSqlDeleteFolderChildren(bucket), util.HashStringToLong(string(shortPath)), string(shortPath))
-	if err != nil {
-		return fmt.Errorf("deleteFolderChildren %s: %s", fullpath, err)
+		rowCount, err := res.RowsAffected()
+		if err != nil {
+			return fmt.Errorf("deleteFolderChildren %s but no rows affected: %s", fullpath, err)
+		}
+		if rowCount < limit {
+			break
+		}
+		// to give the Galera Cluster a chance to breath
+		time.Sleep(time.Second)
 	}
-
-	_, err = res.RowsAffected()
-	if err != nil {
-		return fmt.Errorf("deleteFolderChildren %s but no rows affected: %s", fullpath, err)
-	}
-
 	return nil
 }
 

weed/filer/cassandra/cassandra_store.go

@@ -32,6 +32,7 @@ func (store *CassandraStore) Initialize(configuration util.Configuration, prefix
 		configuration.GetString(prefix+"username"),
 		configuration.GetString(prefix+"password"),
 		configuration.GetStringSlice(prefix+"superLargeDirectories"),
+		configuration.GetString(prefix+"localDC"),
 	)
 }
 
@@ -40,13 +41,19 @@ func (store *CassandraStore) isSuperLargeDirectory(dir string) (dirHash string,
 	return
 }
 
-func (store *CassandraStore) initialize(keyspace string, hosts []string, username string, password string, superLargeDirectories []string) (err error) {
+func (store *CassandraStore) initialize(keyspace string, hosts []string, username string, password string, superLargeDirectories []string, localDC string) (err error) {
 	store.cluster = gocql.NewCluster(hosts...)
 	if username != "" && password != "" {
 		store.cluster.Authenticator = gocql.PasswordAuthenticator{Username: username, Password: password}
 	}
 	store.cluster.Keyspace = keyspace
+	fallback := gocql.RoundRobinHostPolicy()
+	if localDC != "" {
+		fallback = gocql.DCAwareRoundRobinPolicy(localDC)
+	}
+	store.cluster.PoolConfig.HostSelectionPolicy = gocql.TokenAwareHostPolicy(fallback)
 	store.cluster.Consistency = gocql.LocalQuorum
+
 	store.session, err = store.cluster.CreateSession()
 	if err != nil {
 		glog.V(0).Infof("Failed to open cassandra store, hosts %v, keyspace %s", hosts, keyspace)
@@ -154,7 +161,7 @@ func (store *CassandraStore) DeleteEntry(ctx context.Context, fullpath util.Full
 	return nil
 }
 
-func (store *CassandraStore) DeleteFolderChildren(ctx context.Context, fullpath util.FullPath) error {
+func (store *CassandraStore) DeleteFolderChildren(ctx context.Context, fullpath util.FullPath, limit int64) error {
 	if _, ok := store.isSuperLargeDirectory(string(fullpath)); ok {
 		return nil // filer.ErrUnsupportedSuperLargeDirectoryListing
 	}

weed/filer/elastic/v7/elastic_store.go

@@ -186,7 +186,7 @@ func (store *ElasticStore) deleteEntry(ctx context.Context, index, id string) (e
 	return fmt.Errorf("delete entry %v.", err)
 }
 
-func (store *ElasticStore) DeleteFolderChildren(ctx context.Context, fullpath weed_util.FullPath) (err error) {
+func (store *ElasticStore) DeleteFolderChildren(ctx context.Context, fullpath weed_util.FullPath, limit int64) (err error) {
 	_, err = store.ListDirectoryEntries(ctx, fullpath, "", false, math.MaxInt32, func(entry *filer.Entry) bool {
 		if err := store.DeleteEntry(ctx, entry.FullPath); err != nil {
 			glog.Errorf("elastic delete %s: %v.", entry.FullPath, err)

weed/filer/etcd/etcd_store.go

@@ -130,7 +130,7 @@ func (store *EtcdStore) DeleteEntry(ctx context.Context, fullpath weed_util.Full
 	return nil
 }
 
-func (store *EtcdStore) DeleteFolderChildren(ctx context.Context, fullpath weed_util.FullPath) (err error) {
+func (store *EtcdStore) DeleteFolderChildren(ctx context.Context, fullpath weed_util.FullPath, limit int64) (err error) {
 	directoryPrefix := genDirectoryKeyPrefix(fullpath, "")
 
 	if _, err := store.client.Delete(ctx, string(directoryPrefix), clientv3.WithPrefix()); err != nil {

weed/filer/filer.go

@@ -19,6 +19,7 @@ import (
 const (
 	LogFlushInterval = time.Minute
 	PaginationSize   = 1024
+	DeleteMaxRows    = 10000
 	FilerStoreId     = "filer.store.id"
 )
 
@@ -52,7 +53,7 @@ func NewFiler(masters []string, grpcDialOption grpc.DialOption,
 		GrpcDialOption:      grpcDialOption,
 		FilerConf:           NewFilerConf(),
 	}
-	f.LocalMetaLogBuffer = log_buffer.NewLogBuffer(LogFlushInterval, f.logFlushFunc, notifyFn)
+	f.LocalMetaLogBuffer = log_buffer.NewLogBuffer("local", LogFlushInterval, f.logFlushFunc, notifyFn)
 	f.metaLogCollection = collection
 	f.metaLogReplication = replication
 

weed/filer/filer_conf.go

@@ -126,6 +126,9 @@ func mergePathConf(a, b *filer_pb.FilerConf_PathConf) {
 	if b.VolumeGrowthCount > 0 {
 		a.VolumeGrowthCount = b.VolumeGrowthCount
 	}
+	if b.ReadOnly {
+		a.ReadOnly = b.ReadOnly
+	}
 }
 
 func (fc *FilerConf) ToProto() *filer_pb.FilerConf {

weed/filer/filer_conf_test.go

@@ -24,6 +24,18 @@ func TestFilerConf(t *testing.T) {
 			LocationPrefix: "/buckets/",
 			Replication:    "001",
 		},
+		{
+			LocationPrefix: "/buckets",
+			ReadOnly:       false,
+		},
+		{
+			LocationPrefix: "/buckets/xxx",
+			ReadOnly:       true,
+		},
+		{
+			LocationPrefix: "/buckets/xxx/yyy",
+			ReadOnly:       false,
+		},
 	}}
 	fc.doLoadConf(conf)
 
@@ -31,4 +43,7 @@ func TestFilerConf(t *testing.T) {
 	assert.Equal(t, "abcd", fc.MatchStorageRule("/buckets/abcd/jasdf").Collection)
 	assert.Equal(t, "001", fc.MatchStorageRule("/buckets/abc/jasdf").Replication)
 
+	assert.Equal(t, true, fc.MatchStorageRule("/buckets/xxx/yyy/zzz").ReadOnly)
+	assert.Equal(t, false, fc.MatchStorageRule("/buckets/other").ReadOnly)
+
 }

weed/filer/filer_delete_entry.go

@@ -71,7 +71,7 @@ func (f *Filer) doBatchDeleteFolderMetaAndData(ctx context.Context, entry *Entry
 
 	lastFileName := ""
 	includeLastFile := false
-	if !isDeletingBucket {
+	if !isDeletingBucket || !f.Store.CanDropWholeBucket() {
 		for {
 			entries, _, err := f.ListDirectoryEntries(ctx, entry.FullPath, lastFileName, includeLastFile, PaginationSize, "", "", "")
 			if err != nil {
@@ -115,7 +115,7 @@ func (f *Filer) doBatchDeleteFolderMetaAndData(ctx context.Context, entry *Entry
 
 	glog.V(3).Infof("deleting directory %v delete %d chunks: %v", entry.FullPath, len(chunks), shouldDeleteChunks)
 
-	if storeDeletionErr := f.Store.DeleteFolderChildren(ctx, entry.FullPath); storeDeletionErr != nil {
+	if storeDeletionErr := f.Store.DeleteFolderChildren(ctx, entry.FullPath, DeleteMaxRows); storeDeletionErr != nil {
 		return nil, nil, fmt.Errorf("filer store delete: %v", storeDeletionErr)
 	}
 

weed/filer/filerstore.go

@@ -25,7 +25,7 @@ type FilerStore interface {
 	// err == filer_pb.ErrNotFound if not found
 	FindEntry(context.Context, util.FullPath) (entry *Entry, err error)
 	DeleteEntry(context.Context, util.FullPath) (err error)
-	DeleteFolderChildren(context.Context, util.FullPath) (err error)
+	DeleteFolderChildren(context.Context, util.FullPath, int64) (err error)
 	ListDirectoryEntries(ctx context.Context, dirPath util.FullPath, startFileName string, includeStartFile bool, limit int64, eachEntryFunc ListEachEntryFunc) (lastFileName string, err error)
 	ListDirectoryPrefixedEntries(ctx context.Context, dirPath util.FullPath, startFileName string, includeStartFile bool, limit int64, prefix string, eachEntryFunc ListEachEntryFunc) (lastFileName string, err error)
 
@@ -43,4 +43,5 @@ type FilerStore interface {
 type BucketAware interface {
 	OnBucketCreation(bucket string)
 	OnBucketDeletion(bucket string)
+	CanDropWholeBucket() bool
 }

weed/filer/filerstore_translate_path.go

@@ -100,10 +100,10 @@ func (t *FilerStorePathTranlator) DeleteOneEntry(ctx context.Context, existingEn
 	return t.actualStore.DeleteEntry(ctx, existingEntry.FullPath)
 }
 
-func (t *FilerStorePathTranlator) DeleteFolderChildren(ctx context.Context, fp util.FullPath) (err error) {
+func (t *FilerStorePathTranlator) DeleteFolderChildren(ctx context.Context, fp util.FullPath, limit int64) (err error) {
 	newFullPath := t.translatePath(fp)
 
-	return t.actualStore.DeleteFolderChildren(ctx, newFullPath)
+	return t.actualStore.DeleteFolderChildren(ctx, newFullPath, limit)
 }
 
 func (t *FilerStorePathTranlator) ListDirectoryEntries(ctx context.Context, dirPath util.FullPath, startFileName string, includeStartFile bool, limit int64, eachEntryFunc ListEachEntryFunc) (string, error) {

weed/filer/filerstore_wrapper.go

@@ -23,6 +23,7 @@ type VirtualFilerStore interface {
 	AddPathSpecificStore(path string, storeId string, store FilerStore)
 	OnBucketCreation(bucket string)
 	OnBucketDeletion(bucket string)
+	CanDropWholeBucket() bool
 }
 
 type FilerStoreWrapper struct {
@@ -42,6 +43,13 @@ func NewFilerStoreWrapper(store FilerStore) *FilerStoreWrapper {
 	}
 }
 
+func (fsw *FilerStoreWrapper) CanDropWholeBucket() bool {
+	if ba, ok := fsw.defaultStore.(BucketAware); ok {
+		return ba.CanDropWholeBucket()
+	}
+	return false
+}
+
 func (fsw *FilerStoreWrapper) OnBucketCreation(bucket string) {
 	for _, store := range fsw.storeIdToStore {
 		if ba, ok := store.(BucketAware); ok {
@@ -205,7 +213,7 @@ func (fsw *FilerStoreWrapper) DeleteOneEntry(ctx context.Context, existingEntry
 	return actualStore.DeleteEntry(ctx, existingEntry.FullPath)
 }
 
-func (fsw *FilerStoreWrapper) DeleteFolderChildren(ctx context.Context, fp util.FullPath) (err error) {
+func (fsw *FilerStoreWrapper) DeleteFolderChildren(ctx context.Context, fp util.FullPath, limit int64) (err error) {
 	actualStore := fsw.getActualStore(fp + "/")
 	stats.FilerStoreCounter.WithLabelValues(actualStore.GetName(), "deleteFolderChildren").Inc()
 	start := time.Now()
@@ -214,7 +222,7 @@ func (fsw *FilerStoreWrapper) DeleteFolderChildren(ctx context.Context, fp util.
 	}()
 
 	glog.V(4).Infof("DeleteFolderChildren %s", fp)
-	return actualStore.DeleteFolderChildren(ctx, fp)
+	return actualStore.DeleteFolderChildren(ctx, fp, limit)
 }
 
 func (fsw *FilerStoreWrapper) ListDirectoryEntries(ctx context.Context, dirPath util.FullPath, startFileName string, includeStartFile bool, limit int64, eachEntryFunc ListEachEntryFunc) (string, error) {

weed/filer/hbase/hbase_store.go

@@ -109,7 +109,7 @@ func (store *HbaseStore) DeleteEntry(ctx context.Context, path util.FullPath) (e
 	return store.doDelete(ctx, store.cfMetaDir, []byte(path))
 }
 
-func (store *HbaseStore) DeleteFolderChildren(ctx context.Context, path util.FullPath) (err error) {
+func (store *HbaseStore) DeleteFolderChildren(ctx context.Context, path util.FullPath, limit int64) (err error) {
 
 	family := map[string][]string{store.cfMetaDir: {COLUMN_NAME}}
 	expectedPrefix := []byte(path.Child(""))

weed/filer/leveldb/leveldb_store.go

@@ -136,7 +136,7 @@ func (store *LevelDBStore) DeleteEntry(ctx context.Context, fullpath weed_util.F
 	return nil
 }
 
-func (store *LevelDBStore) DeleteFolderChildren(ctx context.Context, fullpath weed_util.FullPath) (err error) {
+func (store *LevelDBStore) DeleteFolderChildren(ctx context.Context, fullpath weed_util.FullPath, limit int64) (err error) {
 
 	batch := new(leveldb.Batch)
 

weed/filer/leveldb2/leveldb2_store.go

@@ -144,7 +144,7 @@ func (store *LevelDB2Store) DeleteEntry(ctx context.Context, fullpath weed_util.
 	return nil
 }
 
-func (store *LevelDB2Store) DeleteFolderChildren(ctx context.Context, fullpath weed_util.FullPath) (err error) {
+func (store *LevelDB2Store) DeleteFolderChildren(ctx context.Context, fullpath weed_util.FullPath, limit int64) (err error) {
 	directoryPrefix, partitionId := genDirectoryKeyPrefix(fullpath, "", store.dbCount)
 
 	batch := new(leveldb.Batch)

weed/filer/leveldb3/leveldb3_store.go

@@ -245,7 +245,7 @@ func (store *LevelDB3Store) DeleteEntry(ctx context.Context, fullpath weed_util.
 	return nil
 }
 
-func (store *LevelDB3Store) DeleteFolderChildren(ctx context.Context, fullpath weed_util.FullPath) (err error) {
+func (store *LevelDB3Store) DeleteFolderChildren(ctx context.Context, fullpath weed_util.FullPath, limit int64) (err error) {
 
 	db, bucket, shortPath, err := store.findDB(fullpath, true)
 	if err != nil {

weed/filer/meta_aggregator.go

@@ -34,7 +34,7 @@ func NewMetaAggregator(filers []string, grpcDialOption grpc.DialOption) *MetaAgg
 		grpcDialOption: grpcDialOption,
 	}
 	t.ListenersCond = sync.NewCond(&t.ListenersLock)
-	t.MetaLogBuffer = log_buffer.NewLogBuffer(LogFlushInterval, nil, func() {
+	t.MetaLogBuffer = log_buffer.NewLogBuffer("aggr", LogFlushInterval, nil, func() {
 		t.ListenersCond.Broadcast()
 	})
 	return t
@@ -71,6 +71,7 @@ func (ma *MetaAggregator) subscribeToOneFiler(f *Filer, self string, peer string
 
 	// when filer store is not shared by multiple filers
 	if peerSignature != f.Signature {
+		lastTsNs = 0
 		if prevTsNs, err := ma.readOffset(f, peer, peerSignature); err == nil {
 			lastTsNs = prevTsNs
 		}
@@ -117,6 +118,7 @@ func (ma *MetaAggregator) subscribeToOneFiler(f *Filer, self string, peer string
 	}
 
 	for {
+		glog.V(4).Infof("subscribing remote %s meta change: %v", peer, time.Unix(0, lastTsNs))
 		err := pb.WithFilerClient(peer, ma.grpcDialOption, func(client filer_pb.SeaweedFilerClient) error {
 			ctx, cancel := context.WithCancel(context.Background())
 			defer cancel()

weed/filer/mongodb/mongodb_store.go

@@ -167,7 +167,7 @@ func (store *MongodbStore) DeleteEntry(ctx context.Context, fullpath util.FullPa
 	return nil
 }
 
-func (store *MongodbStore) DeleteFolderChildren(ctx context.Context, fullpath util.FullPath) error {
+func (store *MongodbStore) DeleteFolderChildren(ctx context.Context, fullpath util.FullPath, limit int64) error {
 
 	where := bson.M{"directory": fullpath}
 	_, err := store.connect.Database(store.database).Collection(store.collectionName).DeleteMany(ctx, where)

weed/filer/mongodb/mongodb_store_kv.go

@@ -7,6 +7,7 @@ import (
 	"github.com/chrislusf/seaweedfs/weed/glog"
 	"go.mongodb.org/mongo-driver/bson"
 	"go.mongodb.org/mongo-driver/mongo"
+	"go.mongodb.org/mongo-driver/mongo/options"
 )
 
 func (store *MongodbStore) KvPut(ctx context.Context, key []byte, value []byte) (err error) {
@@ -15,11 +16,11 @@ func (store *MongodbStore) KvPut(ctx context.Context, key []byte, value []byte)
 
 	c := store.connect.Database(store.database).Collection(store.collectionName)
 
-	_, err = c.InsertOne(ctx, Model{
-		Directory: dir,
-		Name:      name,
-		Meta:      value,
-	})
+	opts := options.Update().SetUpsert(true)
+	filter := bson.D{{"directory", dir}, {"name", name}}
+	update := bson.D{{"$set", bson.D{{"meta", value}}}}
+
+	_, err = c.UpdateOne(ctx, filter, update, opts)
 
 	if err != nil {
 		return fmt.Errorf("kv put: %v", err)

weed/filer/mysql/mysql_sql_gen.go

@@ -38,7 +38,7 @@ func (gen *SqlGenMysql) GetSqlDelete(tableName string) string {
 }
 
 func (gen *SqlGenMysql) GetSqlDeleteFolderChildren(tableName string) string {
-	return fmt.Sprintf("DELETE FROM `%s` WHERE dirhash=? AND directory=?", tableName)
+	return fmt.Sprintf("DELETE FROM `%s` WHERE dirhash=? AND directory=? LIMIT ?", tableName)
 }
 
 func (gen *SqlGenMysql) GetSqlListExclusive(tableName string) string {

weed/filer/read_write.go

@@ -2,13 +2,9 @@ package filer
 
 import (
 	"bytes"
-	"fmt"
 	"github.com/chrislusf/seaweedfs/weed/pb/filer_pb"
-	"github.com/chrislusf/seaweedfs/weed/util"
 	"github.com/chrislusf/seaweedfs/weed/wdclient"
-	"io/ioutil"
 	"math"
-	"net/http"
 	"time"
 )
 
@@ -31,50 +27,17 @@ func ReadEntry(masterClient *wdclient.MasterClient, filerClient filer_pb.Seaweed
 
 }
 
-func ReadContent(filerAddress string, dir, name string) ([]byte, error) {
-
-	target := fmt.Sprintf("http://%s%s/%s", filerAddress, dir, name)
-
-	data, _, err := util.Get(target)
-
-	return data, err
-}
-
-func SaveAs(host string, port int, dir, name string, contentType string, byteBuffer *bytes.Buffer) error {
-	var target string
-	if port == 0 {
-		target = fmt.Sprintf("http://%s%s/%s", host, dir, name)
-	} else {
-		target = fmt.Sprintf("http://%s:%d%s/%s", host, port, dir, name)
+func ReadInsideFiler(filerClient filer_pb.SeaweedFilerClient, dir, name string) (content []byte, err error) {
+	request := &filer_pb.LookupDirectoryEntryRequest{
+		Directory: dir,
+		Name:      name,
 	}
-
-	// set the HTTP method, url, and request body
-	req, err := http.NewRequest(http.MethodPut, target, byteBuffer)
+	respLookupEntry, err := filer_pb.LookupEntry(filerClient, request)
 	if err != nil {
-		return err
+		return
 	}
-
-	// set the request header Content-Type for json
-	if contentType != "" {
-		req.Header.Set("Content-Type", contentType)
-	}
-	resp, err := http.DefaultClient.Do(req)
-	if err != nil {
-		return err
-	}
-	defer util.CloseResponse(resp)
-
-	b, err := ioutil.ReadAll(resp.Body)
-	if err != nil {
-		return err
-	}
-
-	if resp.StatusCode >= 400 {
-		return fmt.Errorf("%s: %s %v", target, resp.Status, string(b))
-	}
-
-	return nil
-
+	content = respLookupEntry.Entry.Content
+	return
 }
 
 func SaveInsideFiler(client filer_pb.SeaweedFilerClient, dir, name string, content []byte) error {

weed/filer/redis/universal_redis_store.go

@@ -107,7 +107,7 @@ func (store *UniversalRedisStore) DeleteEntry(ctx context.Context, fullpath util
 	return nil
 }
 
-func (store *UniversalRedisStore) DeleteFolderChildren(ctx context.Context, fullpath util.FullPath) (err error) {
+func (store *UniversalRedisStore) DeleteFolderChildren(ctx context.Context, fullpath util.FullPath, limit int64) (err error) {
 
 	members, err := store.Client.SMembers(ctx, genDirectoryListKey(string(fullpath))).Result()
 	if err != nil {

weed/filer/redis2/universal_redis_store.go

@@ -127,7 +127,7 @@ func (store *UniversalRedis2Store) DeleteEntry(ctx context.Context, fullpath uti
 	return nil
 }
 
-func (store *UniversalRedis2Store) DeleteFolderChildren(ctx context.Context, fullpath util.FullPath) (err error) {
+func (store *UniversalRedis2Store) DeleteFolderChildren(ctx context.Context, fullpath util.FullPath, limit int64) (err error) {
 
 	if store.isSuperLargeDirectory(string(fullpath)) {
 		return nil

weed/filer/rocksdb/rocksdb_store.go

@@ -148,7 +148,7 @@ func (store *RocksDBStore) DeleteEntry(ctx context.Context, fullpath weed_util.F
 	return nil
 }
 
-func (store *RocksDBStore) DeleteFolderChildren(ctx context.Context, fullpath weed_util.FullPath) (err error) {
+func (store *RocksDBStore) DeleteFolderChildren(ctx context.Context, fullpath weed_util.FullPath, limit int64) (err error) {
 	directoryPrefix := genDirectoryKeyPrefix(fullpath, "")
 
 	batch := gorocksdb.NewWriteBatch()

weed/filer/s3iam_conf.go

@@ -4,6 +4,7 @@ import (
 	"bytes"
 	"github.com/chrislusf/seaweedfs/weed/pb/iam_pb"
 	"github.com/golang/protobuf/jsonpb"
+	"github.com/golang/protobuf/proto"
 	"io"
 )
 
@@ -14,7 +15,7 @@ func ParseS3ConfigurationFromBytes(content []byte, config *iam_pb.S3ApiConfigura
 	return nil
 }
 
-func S3ConfigurationToText(writer io.Writer, config *iam_pb.S3ApiConfiguration) error {
+func ProtoToText(writer io.Writer, config proto.Message) error {
 
 	m := jsonpb.Marshaler{
 		EmitDefaults: false,

weed/filer/s3iam_conf_test.go

@@ -44,7 +44,7 @@ func TestS3Conf(t *testing.T) {
 		},
 	}
 	var buf bytes.Buffer
-	err := S3ConfigurationToText(&buf, s3Conf)
+	err := ProtoToText(&buf, s3Conf)
 	assert.Equal(t, err, nil)
 	s3ConfSaved := &iam_pb.S3ApiConfiguration{}
 	err = ParseS3ConfigurationFromBytes(buf.Bytes(), s3ConfSaved)

weed/filer/sqlite/sqlite_store.go

@@ -0,0 +1,78 @@
+// +build linux darwin windows
+
+// limited GOOS due to modernc.org/libc/unistd
+
+package sqlite
+
+import (
+	"context"
+	"database/sql"
+	"fmt"
+
+	"github.com/chrislusf/seaweedfs/weed/filer"
+	"github.com/chrislusf/seaweedfs/weed/filer/abstract_sql"
+	"github.com/chrislusf/seaweedfs/weed/filer/mysql"
+	"github.com/chrislusf/seaweedfs/weed/util"
+	_ "modernc.org/sqlite"
+)
+
+func init() {
+	filer.Stores = append(filer.Stores, &SqliteStore{})
+}
+
+type SqliteStore struct {
+	abstract_sql.AbstractSqlStore
+}
+
+func (store *SqliteStore) GetName() string {
+	return "sqlite"
+}
+
+func (store *SqliteStore) Initialize(configuration util.Configuration, prefix string) (err error) {
+	dbFile := configuration.GetString(prefix + "dbFile")
+	createTable := `CREATE TABLE IF NOT EXISTS "%s" (
+		dirhash BIGINT,
+		name VARCHAR(1000),
+		directory TEXT,
+		meta BLOB,
+		PRIMARY KEY (dirhash, name)
+	) WITHOUT ROWID;`
+	upsertQuery := `INSERT INTO "%s"(dirhash,name,directory,meta)VALUES(?,?,?,?)
+	ON CONFLICT(dirhash,name) DO UPDATE SET
+		directory=excluded.directory,
+		meta=excluded.meta;
+	`
+	return store.initialize(
+		dbFile,
+		createTable,
+		upsertQuery,
+	)
+}
+
+func (store *SqliteStore) initialize(dbFile, createTable, upsertQuery string) (err error) {
+
+	store.SupportBucketTable = true
+	store.SqlGenerator = &mysql.SqlGenMysql{
+		CreateTableSqlTemplate: createTable,
+		DropTableSqlTemplate:   "drop table `%s`",
+		UpsertQueryTemplate:    upsertQuery,
+	}
+
+	var dbErr error
+	store.DB, dbErr = sql.Open("sqlite", dbFile)
+	if dbErr != nil {
+		store.DB.Close()
+		store.DB = nil
+		return fmt.Errorf("can not connect to %s error:%v", dbFile, err)
+	}
+
+	if err = store.DB.Ping(); err != nil {
+		return fmt.Errorf("connect to %s error:%v", dbFile, err)
+	}
+
+	if err = store.CreateTable(context.Background(), abstract_sql.DEFAULT_TABLE); err != nil {
+		return fmt.Errorf("init table %s: %v", abstract_sql.DEFAULT_TABLE, err)
+	}
+
+	return nil
+}

weed/filer/sqlite/sqlite_store_unsupported.go

@@ -0,0 +1,9 @@
+// +build !linux,!darwin,!windows,!s390,!ppc64le,!mips64
+
+// limited GOOS due to modernc.org/libc/unistd
+
+package sqlite
+
+func init() {
+	// filer.Stores = append(filer.Stores, &SqliteStore{})
+}

weed/filer/stream.go

@@ -6,9 +6,11 @@ import (
 	"io"
 	"math"
 	"strings"
+	"time"
 
 	"github.com/chrislusf/seaweedfs/weed/glog"
 	"github.com/chrislusf/seaweedfs/weed/pb/filer_pb"
+	"github.com/chrislusf/seaweedfs/weed/stats"
 	"github.com/chrislusf/seaweedfs/weed/util"
 	"github.com/chrislusf/seaweedfs/weed/wdclient"
 )
@@ -36,16 +38,20 @@ func StreamContent(masterClient wdclient.HasLookupFileIdFunction, w io.Writer, c
 	for _, chunkView := range chunkViews {
 
 		urlStrings := fileId2Url[chunkView.FileId]
+		start := time.Now()
 		data, err := retriedFetchChunkData(urlStrings, chunkView.CipherKey, chunkView.IsGzipped, chunkView.IsFullChunk(), chunkView.Offset, int(chunkView.Size))
+		stats.FilerRequestHistogram.WithLabelValues("chunkDownload").Observe(time.Since(start).Seconds())
 		if err != nil {
-			glog.Errorf("read chunk: %v", err)
+			stats.FilerRequestCounter.WithLabelValues("chunkDownloadError").Inc()
 			return fmt.Errorf("read chunk: %v", err)
 		}
+
 		_, err = w.Write(data)
 		if err != nil {
-			glog.Errorf("write chunk: %v", err)
+			stats.FilerRequestCounter.WithLabelValues("chunkDownloadedError").Inc()
 			return fmt.Errorf("write chunk: %v", err)
 		}
+		stats.FilerRequestCounter.WithLabelValues("chunkDownload").Inc()
 	}
 
 	return nil

weed/filesys/dir.go

@@ -54,28 +54,27 @@ func (dir *Dir) Id() uint64 {
 
 func (dir *Dir) Attr(ctx context.Context, attr *fuse.Attr) error {
 
-	// https://github.com/bazil/fuse/issues/196
-	attr.Valid = time.Second
-
-	if dir.FullPath() == dir.wfs.option.FilerMountRootPath {
-		dir.setRootDirAttributes(attr)
-		glog.V(3).Infof("root dir Attr %s, attr: %+v", dir.FullPath(), attr)
-		return nil
-	}
-
 	entry, err := dir.maybeLoadEntry()
 	if err != nil {
-		glog.V(3).Infof("dir Attr %s,err: %+v", dir.FullPath(), err)
+		glog.V(3).Infof("dir Attr %s, err: %+v", dir.FullPath(), err)
 		return err
 	}
 
+	// https://github.com/bazil/fuse/issues/196
+	attr.Valid = time.Second
 	attr.Inode = dir.Id()
 	attr.Mode = os.FileMode(entry.Attributes.FileMode) | os.ModeDir
 	attr.Mtime = time.Unix(entry.Attributes.Mtime, 0)
 	attr.Crtime = time.Unix(entry.Attributes.Crtime, 0)
+	attr.Ctime = time.Unix(entry.Attributes.Crtime, 0)
+	attr.Atime = time.Unix(entry.Attributes.Mtime, 0)
 	attr.Gid = entry.Attributes.Gid
 	attr.Uid = entry.Attributes.Uid
 
+	if dir.FullPath() == dir.wfs.option.FilerMountRootPath {
+		attr.BlockSize = blockSize
+	}
+
 	glog.V(4).Infof("dir Attr %s, attr: %+v", dir.FullPath(), attr)
 
 	return nil
@@ -93,20 +92,6 @@ func (dir *Dir) Getxattr(ctx context.Context, req *fuse.GetxattrRequest, resp *f
 	return getxattr(entry, req, resp)
 }
 
-func (dir *Dir) setRootDirAttributes(attr *fuse.Attr) {
-	// attr.Inode = 1 // filer2.FullPath(dir.Path).AsInode()
-	attr.Valid = time.Second
-	attr.Inode = dir.Id()
-	attr.Uid = dir.wfs.option.MountUid
-	attr.Gid = dir.wfs.option.MountGid
-	attr.Mode = dir.wfs.option.MountMode
-	attr.Crtime = dir.wfs.option.MountCtime
-	attr.Ctime = dir.wfs.option.MountCtime
-	attr.Mtime = dir.wfs.option.MountMtime
-	attr.Atime = dir.wfs.option.MountMtime
-	attr.BlockSize = blockSize
-}
-
 func (dir *Dir) Fsync(ctx context.Context, req *fuse.FsyncRequest) error {
 	// fsync works at OS level
 	// write the file chunks to the filerGrpcAddress
@@ -156,7 +141,7 @@ func (dir *Dir) Create(ctx context.Context, req *fuse.CreateRequest,
 	var node fs.Node
 	if isDirectory {
 		node = dir.newDirectory(util.NewFullPath(dir.FullPath(), req.Name))
-		return node, nil, nil
+		return node, node, nil
 	}
 
 	node = dir.newFile(req.Name)
@@ -375,6 +360,28 @@ func (dir *Dir) ReadDirAll(ctx context.Context) (ret []fuse.Dirent, err error) {
 		glog.Errorf("list meta cache: %v", listErr)
 		return nil, fuse.EIO
 	}
+
+	// create proper . and .. directories
+	ret = append(ret, fuse.Dirent{
+		Inode: dirPath.AsInode(),
+		Name:  ".",
+		Type:  fuse.DT_Dir,
+	})
+
+	// return the correct parent inode for the mount root
+	var inode uint64
+	if string(dirPath) == dir.wfs.option.FilerMountRootPath {
+		inode = dir.wfs.option.MountParentInode
+	} else {
+		inode = util.FullPath(dir.parent.FullPath()).AsInode()
+	}
+
+	ret = append(ret, fuse.Dirent{
+		Inode: inode,
+		Name:  "..",
+		Type:  fuse.DT_Dir,
+	})
+
 	return
 }
 
@@ -436,7 +443,10 @@ func (dir *Dir) removeOneFile(req *fuse.RemoveRequest) error {
 	dir.wfs.handlesLock.Lock()
 	defer dir.wfs.handlesLock.Unlock()
 	inodeId := filePath.AsInode()
-	delete(dir.wfs.handles, inodeId)
+	if fh, ok := dir.wfs.handles[inodeId]; ok {
+		delete(dir.wfs.handles, inodeId)
+		fh.isDeleted = true
+	}
 
 	return nil
 

weed/filesys/dir_rename.go

@@ -2,6 +2,9 @@ package filesys
 
 import (
 	"context"
+	"fmt"
+	"github.com/chrislusf/seaweedfs/weed/filer"
+	"math"
 
 	"github.com/seaweedfs/fuse"
 	"github.com/seaweedfs/fuse/fs"
@@ -37,6 +40,7 @@ func (dir *Dir) Rename(ctx context.Context, req *fuse.RenameRequest, newDirector
 			OldName:      req.OldName,
 			NewDirectory: newDir.FullPath(),
 			NewName:      req.NewName,
+			Signatures:   []int32{dir.wfs.signature},
 		}
 
 		_, err := client.AtomicRenameEntry(ctx, request)
@@ -53,46 +57,119 @@ func (dir *Dir) Rename(ctx context.Context, req *fuse.RenameRequest, newDirector
 		return fuse.EIO
 	}
 
-	// TODO: replicate renaming logic on filer
-	if err := dir.wfs.metaCache.DeleteEntry(context.Background(), oldPath); err != nil {
-		glog.V(0).Infof("dir Rename delete local %s => %s : %v", oldPath, newPath, err)
+	err = dir.moveEntry(context.Background(), util.FullPath(dir.FullPath()), oldEntry, util.FullPath(newDir.FullPath()), req.NewName)
+	if err != nil {
+		glog.V(0).Infof("dir local Rename %s => %s : %v", oldPath, newPath, err)
 		return fuse.EIO
 	}
-	oldEntry.FullPath = newPath
-	if err := dir.wfs.metaCache.InsertEntry(context.Background(), oldEntry); err != nil {
+
+
+	return nil
+}
+
+func (dir *Dir) moveEntry(ctx context.Context, oldParent util.FullPath, entry *filer.Entry, newParent util.FullPath, newName string) error {
+
+	oldName := entry.Name()
+
+	oldPath := oldParent.Child(oldName)
+	newPath := newParent.Child(newName)
+	if err := dir.moveSelfEntry(ctx, oldParent, entry, newParent, newName, func() error {
+
+		oldFsNode := NodeWithId(oldPath.AsInode())
+		newFsNode := NodeWithId(newPath.AsInode())
+		newDirNode, found := dir.wfs.Server.FindInternalNode(NodeWithId(newParent.AsInode()))
+		var newDir *Dir
+		if found {
+			newDir = newDirNode.(*Dir)
+		}
+		dir.wfs.Server.InvalidateInternalNode(oldFsNode, newFsNode, func(internalNode fs.Node) {
+			if file, ok := internalNode.(*File); ok {
+				glog.V(4).Infof("internal file node %s", oldParent.Child(oldName))
+				file.Name = newName
+				file.id = uint64(newFsNode)
+				if found {
+					file.dir = newDir
+				}
+			}
+			if dir, ok := internalNode.(*Dir); ok {
+				glog.V(4).Infof("internal dir node %s", oldParent.Child(oldName))
+				dir.name = newName
+				dir.id = uint64(newFsNode)
+				if found {
+					dir.parent = newDir
+				}
+			}
+		})
+
+		// change file handle
+		inodeId := oldPath.AsInode()
+		dir.wfs.handlesLock.Lock()
+		if existingHandle, found := dir.wfs.handles[inodeId]; found && existingHandle == nil {
+			glog.V(4).Infof("opened file handle %s => %s", oldPath, newPath)
+			delete(dir.wfs.handles, inodeId)
+			dir.wfs.handles[newPath.AsInode()] = existingHandle
+		}
+		dir.wfs.handlesLock.Unlock()
+
+		if entry.IsDirectory() {
+			if err := dir.moveFolderSubEntries(ctx, oldParent, oldName, newParent, newName); err != nil {
+				return err
+			}
+		}
+		return nil
+	}); err != nil {
+		return fmt.Errorf("fail to move %s => %s: %v", oldPath, newPath, err)
+	}
+
+	return nil
+}
+
+func (dir *Dir) moveFolderSubEntries(ctx context.Context, oldParent util.FullPath, oldName string, newParent util.FullPath, newName string) error {
+
+	currentDirPath := oldParent.Child(oldName)
+	newDirPath := newParent.Child(newName)
+
+	glog.V(1).Infof("moving folder %s => %s", currentDirPath, newDirPath)
+
+	var moveErr error
+	listErr := dir.wfs.metaCache.ListDirectoryEntries(ctx, currentDirPath, "", false, int64(math.MaxInt32), func(item *filer.Entry) bool {
+		moveErr = dir.moveEntry(ctx, currentDirPath, item, newDirPath, item.Name())
+		if moveErr != nil {
+			return false
+		}
+		return true
+	})
+	if listErr != nil {
+		return listErr
+	}
+	if moveErr != nil {
+		return moveErr
+	}
+
+	return nil
+}
+
+func (dir *Dir) moveSelfEntry(ctx context.Context, oldParent util.FullPath, entry *filer.Entry, newParent util.FullPath, newName string, moveFolderSubEntries func() error) error {
+
+	newPath := newParent.Child(newName)
+	oldPath := oldParent.Child(entry.Name())
+
+	entry.FullPath = newPath
+	if err := dir.wfs.metaCache.InsertEntry(ctx, entry); err != nil {
 		glog.V(0).Infof("dir Rename insert local %s => %s : %v", oldPath, newPath, err)
 		return fuse.EIO
 	}
 
-	oldFsNode := NodeWithId(oldPath.AsInode())
-	newFsNode := NodeWithId(newPath.AsInode())
-	dir.wfs.Server.InvalidateInternalNode(oldFsNode, newFsNode, func(internalNode fs.Node) {
-		if file, ok := internalNode.(*File); ok {
-			glog.V(4).Infof("internal file node %s", file.Name)
-			file.Name = req.NewName
-			file.id = uint64(newFsNode)
-			file.dir = newDir
+	if moveFolderSubEntries != nil {
+		if moveChildrenErr := moveFolderSubEntries(); moveChildrenErr != nil {
+			return moveChildrenErr
 		}
-		if dir, ok := internalNode.(*Dir); ok {
-			glog.V(4).Infof("internal dir node %s", dir.name)
-			dir.name = req.NewName
-			dir.id = uint64(newFsNode)
-			dir.parent = newDir
-		}
-	})
-
-	// change file handle
-	dir.wfs.handlesLock.Lock()
-	defer dir.wfs.handlesLock.Unlock()
-	inodeId := oldPath.AsInode()
-	existingHandle, found := dir.wfs.handles[inodeId]
-	glog.V(4).Infof("has open filehandle %s: %v", oldPath, found)
-	if !found || existingHandle == nil {
-		return nil
 	}
-	glog.V(4).Infof("opened filehandle %s => %s", oldPath, newPath)
-	delete(dir.wfs.handles, inodeId)
-	dir.wfs.handles[newPath.AsInode()] = existingHandle
+
+	if err := dir.wfs.metaCache.DeleteEntry(ctx, oldPath); err != nil {
+		glog.V(0).Infof("dir Rename delete local %s => %s : %v", oldPath, newPath, err)
+		return fuse.EIO
+	}
 
 	return nil
 }

weed/filesys/dirty_pages_temp_file.go

@@ -6,7 +6,6 @@ import (
 	"github.com/chrislusf/seaweedfs/weed/pb/filer_pb"
 	"io"
 	"os"
-	"path/filepath"
 	"sync"
 	"time"
 )
@@ -24,14 +23,6 @@ type TempFileDirtyPages struct {
 	replication      string
 }
 
-var (
-	tmpDir = filepath.Join(os.TempDir(), "sw")
-)
-
-func init() {
-	os.Mkdir(tmpDir, 0755)
-}
-
 func newTempFileDirtyPages(file *File, writeOnly bool) *TempFileDirtyPages {
 
 	tempFile := &TempFileDirtyPages{
@@ -49,7 +40,7 @@ func (pages *TempFileDirtyPages) AddPage(offset int64, data []byte) {
 	defer pages.pageAddLock.Unlock()
 
 	if pages.tf == nil {
-		tf, err := os.CreateTemp(tmpDir, "")
+		tf, err := os.CreateTemp(pages.f.wfs.option.getTempFilePageDir(), "")
 		if err != nil {
 			glog.Errorf("create temp file: %v", err)
 			pages.lastErr = err
@@ -106,7 +97,7 @@ func (pages *TempFileDirtyPages) saveExistingPagesToStorage() {
 
 	for _, list := range pages.writtenIntervals.lists {
 		listStopOffset := list.Offset() + list.Size()
-		for uploadedOffset:=int64(0); uploadedOffset < listStopOffset; uploadedOffset += pageSize {
+		for uploadedOffset := int64(0); uploadedOffset < listStopOffset; uploadedOffset += pageSize {
 			start, stop := max(list.Offset(), uploadedOffset), min(listStopOffset, uploadedOffset+pageSize)
 			if start >= stop {
 				continue

weed/filesys/dirty_pages_temp_interval.go

@@ -54,7 +54,7 @@ func (list *WrittenIntervalLinkedList) ReadData(buf []byte, start, stop int64) {
 		nodeStart, nodeStop := max(start, t.DataOffset), min(stop, t.DataOffset+t.Size)
 		if nodeStart < nodeStop {
 			// glog.V(4).Infof("copying start=%d stop=%d t=[%d,%d) => bufSize=%d nodeStart=%d, nodeStop=%d", start, stop, t.DataOffset, t.DataOffset+t.Size, len(buf), nodeStart, nodeStop)
-			list.tempFile.ReadAt(buf[nodeStart-start:nodeStop-start], t.TempOffset + nodeStart - t.DataOffset)
+			list.tempFile.ReadAt(buf[nodeStart-start:nodeStop-start], t.TempOffset+nodeStart-t.DataOffset)
 		}
 
 		if t.Next == nil {

weed/filesys/file.go

@@ -115,16 +115,6 @@ func (file *File) Setattr(ctx context.Context, req *fuse.SetattrRequest, resp *f
 	if err != nil {
 		return err
 	}
-	if file.isOpen > 0 {
-		file.wfs.handlesLock.Lock()
-		fileHandle := file.wfs.handles[file.Id()]
-		file.wfs.handlesLock.Unlock()
-
-		if fileHandle != nil {
-			fileHandle.Lock()
-			defer fileHandle.Unlock()
-		}
-	}
 
 	if req.Valid.Size() {
 
@@ -154,17 +144,17 @@ func (file *File) Setattr(ctx context.Context, req *fuse.SetattrRequest, resp *f
 		file.dirtyMetadata = true
 	}
 
-	if req.Valid.Mode() {
+	if req.Valid.Mode() && entry.Attributes.FileMode != uint32(req.Mode) {
 		entry.Attributes.FileMode = uint32(req.Mode)
 		file.dirtyMetadata = true
 	}
 
-	if req.Valid.Uid() {
+	if req.Valid.Uid() && entry.Attributes.Uid != req.Uid {
 		entry.Attributes.Uid = req.Uid
 		file.dirtyMetadata = true
 	}
 
-	if req.Valid.Gid() {
+	if req.Valid.Gid() && entry.Attributes.Gid != req.Gid {
 		entry.Attributes.Gid = req.Gid
 		file.dirtyMetadata = true
 	}
@@ -174,7 +164,7 @@ func (file *File) Setattr(ctx context.Context, req *fuse.SetattrRequest, resp *f
 		file.dirtyMetadata = true
 	}
 
-	if req.Valid.Mtime() {
+	if req.Valid.Mtime() && entry.Attributes.Mtime != req.Mtime.Unix() {
 		entry.Attributes.Mtime = req.Mtime.Unix()
 		file.dirtyMetadata = true
 	}
@@ -207,6 +197,11 @@ func (file *File) Setxattr(ctx context.Context, req *fuse.SetxattrRequest) error
 	if err := setxattr(entry, req); err != nil {
 		return err
 	}
+	file.dirtyMetadata = true
+
+	if file.isOpen > 0 {
+		return nil
+	}
 
 	return file.saveEntry(entry)
 
@@ -224,6 +219,11 @@ func (file *File) Removexattr(ctx context.Context, req *fuse.RemovexattrRequest)
 	if err := removexattr(entry, req); err != nil {
 		return err
 	}
+	file.dirtyMetadata = true
+
+	if file.isOpen > 0 {
+		return nil
+	}
 
 	return file.saveEntry(entry)
 
@@ -351,6 +351,8 @@ func (file *File) saveEntry(entry *filer_pb.Entry) error {
 
 		file.wfs.metaCache.InsertEntry(context.Background(), filer.FromPbEntry(request.Directory, request.Entry))
 
+		file.dirtyMetadata = false
+
 		return nil
 	})
 }

weed/filesys/filehandle.go

@@ -33,11 +33,12 @@ type FileHandle struct {
 	Uid       uint32         // user ID of process making request
 	Gid       uint32         // group ID of process making request
 	writeOnly bool
+	isDeleted bool
 }
 
 func newFileHandle(file *File, uid, gid uint32, writeOnly bool) *FileHandle {
 	fh := &FileHandle{
-		f:          file,
+		f: file,
 		// dirtyPages: newContinuousDirtyPages(file, writeOnly),
 		dirtyPages: newTempFileDirtyPages(file, writeOnly),
 		Uid:        uid,
@@ -222,6 +223,11 @@ func (fh *FileHandle) Flush(ctx context.Context, req *fuse.FlushRequest) error {
 
 	glog.V(4).Infof("Flush %v fh %d", fh.f.fullpath(), fh.handle)
 
+	if fh.isDeleted {
+		glog.V(4).Infof("Flush %v fh %d skip deleted", fh.f.fullpath(), fh.handle)
+		return nil
+	}
+
 	fh.Lock()
 	defer fh.Unlock()
 

weed/filesys/meta_cache/meta_cache.go

@@ -3,14 +3,12 @@ package meta_cache
 import (
 	"context"
 	"fmt"
-	"os"
-	"sync"
-
 	"github.com/chrislusf/seaweedfs/weed/filer"
 	"github.com/chrislusf/seaweedfs/weed/filer/leveldb"
 	"github.com/chrislusf/seaweedfs/weed/glog"
 	"github.com/chrislusf/seaweedfs/weed/util"
 	"github.com/chrislusf/seaweedfs/weed/util/bounded_tree"
+	"os"
 )
 
 // need to have logic similar to FilerStoreWrapper
@@ -18,7 +16,7 @@ import (
 
 type MetaCache struct {
 	localStore filer.VirtualFilerStore
-	sync.RWMutex
+	// sync.RWMutex
 	visitedBoundary *bounded_tree.BoundedTree
 	uidGidMapper    *UidGidMapper
 	invalidateFunc  func(util.FullPath)
@@ -54,8 +52,8 @@ func openMetaStore(dbFolder string) filer.VirtualFilerStore {
 }
 
 func (mc *MetaCache) InsertEntry(ctx context.Context, entry *filer.Entry) error {
-	mc.Lock()
-	defer mc.Unlock()
+	//mc.Lock()
+	//defer mc.Unlock()
 	return mc.doInsertEntry(ctx, entry)
 }
 
@@ -64,8 +62,8 @@ func (mc *MetaCache) doInsertEntry(ctx context.Context, entry *filer.Entry) erro
 }
 
 func (mc *MetaCache) AtomicUpdateEntryFromFiler(ctx context.Context, oldPath util.FullPath, newEntry *filer.Entry) error {
-	mc.Lock()
-	defer mc.Unlock()
+	//mc.Lock()
+	//defer mc.Unlock()
 
 	oldDir, _ := oldPath.DirAndName()
 	if mc.visitedBoundary.HasVisited(util.FullPath(oldDir)) {
@@ -97,14 +95,14 @@ func (mc *MetaCache) AtomicUpdateEntryFromFiler(ctx context.Context, oldPath uti
 }
 
 func (mc *MetaCache) UpdateEntry(ctx context.Context, entry *filer.Entry) error {
-	mc.Lock()
-	defer mc.Unlock()
+	//mc.Lock()
+	//defer mc.Unlock()
 	return mc.localStore.UpdateEntry(ctx, entry)
 }
 
 func (mc *MetaCache) FindEntry(ctx context.Context, fp util.FullPath) (entry *filer.Entry, err error) {
-	mc.RLock()
-	defer mc.RUnlock()
+	//mc.RLock()
+	//defer mc.RUnlock()
 	entry, err = mc.localStore.FindEntry(ctx, fp)
 	if err != nil {
 		return nil, err
@@ -114,14 +112,14 @@ func (mc *MetaCache) FindEntry(ctx context.Context, fp util.FullPath) (entry *fi
 }
 
 func (mc *MetaCache) DeleteEntry(ctx context.Context, fp util.FullPath) (err error) {
-	mc.Lock()
-	defer mc.Unlock()
+	//mc.Lock()
+	//defer mc.Unlock()
 	return mc.localStore.DeleteEntry(ctx, fp)
 }
 
 func (mc *MetaCache) ListDirectoryEntries(ctx context.Context, dirPath util.FullPath, startFileName string, includeStartFile bool, limit int64, eachEntryFunc filer.ListEachEntryFunc) error {
-	mc.RLock()
-	defer mc.RUnlock()
+	//mc.RLock()
+	//defer mc.RUnlock()
 
 	if !mc.visitedBoundary.HasVisited(dirPath) {
 		return fmt.Errorf("unsynchronized dir: %v", dirPath)
@@ -138,8 +136,8 @@ func (mc *MetaCache) ListDirectoryEntries(ctx context.Context, dirPath util.Full
 }
 
 func (mc *MetaCache) Shutdown() {
-	mc.Lock()
-	defer mc.Unlock()
+	//mc.Lock()
+	//defer mc.Unlock()
 	mc.localStore.Shutdown()
 }
 

weed/filesys/meta_cache/meta_cache_subscribe.go

@@ -40,9 +40,22 @@ func SubscribeMetaEvents(mc *MetaCache, selfSignature int32, client filer_pb.Fil
 			newEntry = filer.FromPbEntry(dir, message.NewEntry)
 		}
 		err := mc.AtomicUpdateEntryFromFiler(context.Background(), oldPath, newEntry)
-		if err == nil && message.OldEntry != nil && message.NewEntry != nil {
-			key := util.NewFullPath(dir, message.NewEntry.Name)
-			mc.invalidateFunc(key)
+		if err == nil {
+			if message.OldEntry != nil && message.NewEntry != nil {
+				if message.OldEntry.Name == message.NewEntry.Name {
+					// no need to invalidate
+				} else {
+					oldKey := util.NewFullPath(resp.Directory, message.OldEntry.Name)
+					mc.invalidateFunc(oldKey)
+					newKey := util.NewFullPath(dir, message.NewEntry.Name)
+					mc.invalidateFunc(newKey)
+				}
+			} else if message.OldEntry == nil && message.NewEntry != nil {
+				// no need to invaalidate
+			} else if message.OldEntry != nil && message.NewEntry == nil {
+				oldKey := util.NewFullPath(resp.Directory, message.OldEntry.Name)
+				mc.invalidateFunc(oldKey)
+			}
 		}
 
 		return err

weed/filesys/wfs.go

@@ -3,14 +3,17 @@ package filesys
 import (
 	"context"
 	"fmt"
+	"math"
+	"math/rand"
+	"os"
+	"path"
+	"path/filepath"
+	"sync"
+	"time"
+
 	"github.com/chrislusf/seaweedfs/weed/filer"
 	"github.com/chrislusf/seaweedfs/weed/storage/types"
 	"github.com/chrislusf/seaweedfs/weed/wdclient"
-	"math"
-	"os"
-	"path"
-	"sync"
-	"time"
 
 	"google.golang.org/grpc"
 
@@ -28,8 +31,9 @@ import (
 
 type Option struct {
 	MountDirectory     string
-	FilerAddress       string
-	FilerGrpcAddress   string
+	FilerAddresses     []string
+	filerIndex         int
+	FilerGrpcAddresses []string
 	GrpcDialOption     grpc.DialOption
 	FilerMountRootPath string
 	Collection         string
@@ -43,15 +47,19 @@ type Option struct {
 	DataCenter         string
 	Umask              os.FileMode
 
-	MountUid   uint32
-	MountGid   uint32
-	MountMode  os.FileMode
-	MountCtime time.Time
-	MountMtime time.Time
+	MountUid         uint32
+	MountGid         uint32
+	MountMode        os.FileMode
+	MountCtime       time.Time
+	MountMtime       time.Time
+	MountParentInode uint64
 
 	VolumeServerAccess string // how to access volume servers
 	Cipher             bool   // whether encrypt data on volume server
 	UidGidMapper       *meta_cache.UidGidMapper
+
+	uniqueCacheDir         string
+	uniqueCacheTempPageDir string
 }
 
 var _ = fs.FS(&WFS{})
@@ -95,14 +103,13 @@ func NewSeaweedFileSystem(option *Option) *WFS {
 		},
 		signature: util.RandomInt32(),
 	}
-	cacheUniqueId := util.Md5String([]byte(option.MountDirectory + option.FilerGrpcAddress + option.FilerMountRootPath + util.Version()))[0:8]
-	cacheDir := path.Join(option.CacheDir, cacheUniqueId)
+	wfs.option.filerIndex = rand.Intn(len(option.FilerAddresses))
+	wfs.option.setupUniqueCacheDirectory()
 	if option.CacheSizeMB > 0 {
-		os.MkdirAll(cacheDir, os.FileMode(0777)&^option.Umask)
-		wfs.chunkCache = chunk_cache.NewTieredChunkCache(256, cacheDir, option.CacheSizeMB, 1024*1024)
+		wfs.chunkCache = chunk_cache.NewTieredChunkCache(256, option.getUniqueCacheDir(), option.CacheSizeMB, 1024*1024)
 	}
 
-	wfs.metaCache = meta_cache.NewMetaCache(path.Join(cacheDir, "meta"), util.FullPath(option.FilerMountRootPath), option.UidGidMapper, func(filePath util.FullPath) {
+	wfs.metaCache = meta_cache.NewMetaCache(path.Join(option.getUniqueCacheDir(), "meta"), util.FullPath(option.FilerMountRootPath), option.UidGidMapper, func(filePath util.FullPath) {
 
 		fsNode := NodeWithId(filePath.AsInode())
 		if err := wfs.Server.InvalidateNodeData(fsNode); err != nil {
@@ -118,8 +125,6 @@ func NewSeaweedFileSystem(option *Option) *WFS {
 			glog.V(4).Infof("InvalidateEntry %s : %v", filePath, err)
 		}
 	})
-	startTime := time.Now()
-	go meta_cache.SubscribeMetaEvents(wfs.metaCache, wfs.signature, wfs, wfs.option.FilerMountRootPath, startTime.UnixNano())
 	grace.OnInterrupt(func() {
 		wfs.metaCache.Shutdown()
 	})
@@ -134,6 +139,11 @@ func NewSeaweedFileSystem(option *Option) *WFS {
 	return wfs
 }
 
+func (wfs *WFS) StartBackgroundTasks() {
+	startTime := time.Now()
+	go meta_cache.SubscribeMetaEvents(wfs.metaCache, wfs.signature, wfs, wfs.option.FilerMountRootPath, startTime.UnixNano())
+}
+
 func (wfs *WFS) Root() (fs.Node, error) {
 	return wfs.root, nil
 }
@@ -259,11 +269,27 @@ func (wfs *WFS) mapPbIdFromLocalToFiler(entry *filer_pb.Entry) {
 func (wfs *WFS) LookupFn() wdclient.LookupFileIdFunctionType {
 	if wfs.option.VolumeServerAccess == "filerProxy" {
 		return func(fileId string) (targetUrls []string, err error) {
-			return []string{"http://" + wfs.option.FilerAddress + "/?proxyChunkId=" + fileId}, nil
+			return []string{"http://" + wfs.getCurrentFiler() + "/?proxyChunkId=" + fileId}, nil
 		}
 	}
 	return filer.LookupFn(wfs)
+}
+func (wfs *WFS) getCurrentFiler() string {
+	return wfs.option.FilerAddresses[wfs.option.filerIndex]
+}
 
+func (option *Option) setupUniqueCacheDirectory() {
+	cacheUniqueId := util.Md5String([]byte(option.MountDirectory + option.FilerGrpcAddresses[0] + option.FilerMountRootPath + util.Version()))[0:8]
+	option.uniqueCacheDir = path.Join(option.CacheDir, cacheUniqueId)
+	option.uniqueCacheTempPageDir = filepath.Join(option.uniqueCacheDir, "sw")
+	os.MkdirAll(option.uniqueCacheTempPageDir, os.FileMode(0777)&^option.Umask)
+}
+
+func (option *Option) getTempFilePageDir() string {
+	return option.uniqueCacheTempPageDir
+}
+func (option *Option) getUniqueCacheDir() string {
+	return option.uniqueCacheDir
 }
 
 type NodeWithId uint64

weed/filesys/wfs_filer_client.go

@@ -1,6 +1,7 @@
 package filesys
 
 import (
+	"github.com/chrislusf/seaweedfs/weed/glog"
 	"github.com/chrislusf/seaweedfs/weed/util"
 	"google.golang.org/grpc"
 
@@ -10,20 +11,36 @@ import (
 
 var _ = filer_pb.FilerClient(&WFS{})
 
-func (wfs *WFS) WithFilerClient(fn func(filer_pb.SeaweedFilerClient) error) error {
+func (wfs *WFS) WithFilerClient(fn func(filer_pb.SeaweedFilerClient) error) (err error) {
 
-	err := util.Retry("filer grpc "+wfs.option.FilerGrpcAddress, func() error {
-		return pb.WithCachedGrpcClient(func(grpcConnection *grpc.ClientConn) error {
-			client := filer_pb.NewSeaweedFilerClient(grpcConnection)
-			return fn(client)
-		}, wfs.option.FilerGrpcAddress, wfs.option.GrpcDialOption)
+	return util.Retry("filer grpc", func() error {
+
+		i := wfs.option.filerIndex
+		n := len(wfs.option.FilerGrpcAddresses)
+		for x := 0; x < n; x++ {
+
+			filerGrpcAddress := wfs.option.FilerGrpcAddresses[i]
+			err = pb.WithCachedGrpcClient(func(grpcConnection *grpc.ClientConn) error {
+				client := filer_pb.NewSeaweedFilerClient(grpcConnection)
+				return fn(client)
+			}, filerGrpcAddress, wfs.option.GrpcDialOption)
+
+			if err != nil {
+				glog.V(0).Infof("WithFilerClient %d %v: %v", x, filerGrpcAddress, err)
+			} else {
+				wfs.option.filerIndex = i
+				return nil
+			}
+
+			i++
+			if i >= n {
+				i = 0
+			}
+
+		}
+		return err
 	})
 
-	if err == nil {
-		return nil
-	}
-	return err
-
 }
 
 func (wfs *WFS) AdjustedUrl(location *filer_pb.Location) string {

weed/filesys/wfs_write.go

@@ -56,7 +56,7 @@ func (wfs *WFS) saveDataAsChunk(fullPath util.FullPath, writeOnly bool) filer.Sa
 
 		fileUrl := fmt.Sprintf("http://%s/%s", host, fileId)
 		if wfs.option.VolumeServerAccess == "filerProxy" {
-			fileUrl = fmt.Sprintf("http://%s/?proxyChunkId=%s", wfs.option.FilerAddress, fileId)
+			fileUrl = fmt.Sprintf("http://%s/?proxyChunkId=%s", wfs.getCurrentFiler(), fileId)
 		}
 		uploadResult, err, data := operation.Upload(fileUrl, filename, wfs.option.Cipher, reader, false, "", nil, auth)
 		if err != nil {

weed/filesys/xattr.go

@@ -113,6 +113,21 @@ func (wfs *WFS) maybeLoadEntry(dir, name string) (entry *filer_pb.Entry, err err
 	fullpath := util.NewFullPath(dir, name)
 	// glog.V(3).Infof("read entry cache miss %s", fullpath)
 
+	// return a valid entry for the mount root
+	if string(fullpath) == wfs.option.FilerMountRootPath {
+		return &filer_pb.Entry{
+			Name:        wfs.option.FilerMountRootPath,
+			IsDirectory: true,
+			Attributes: &filer_pb.FuseAttributes{
+				Mtime:    wfs.option.MountMtime.Unix(),
+				FileMode: uint32(wfs.option.MountMode),
+				Uid:      wfs.option.MountUid,
+				Gid:      wfs.option.MountGid,
+				Crtime:   wfs.option.MountCtime.Unix(),
+			},
+		}, nil
+	}
+
 	// read from async meta cache
 	meta_cache.EnsureVisited(wfs.metaCache, wfs, util.FullPath(dir))
 	cachedEntry, cacheErr := wfs.metaCache.FindEntry(context.Background(), fullpath)

weed/iamapi/iamapi_handlers.go

@@ -1,55 +1,13 @@
 package iamapi
 
 import (
-	"bytes"
-	"encoding/xml"
 	"fmt"
-	"strconv"
-
-	"net/http"
-	"net/url"
-	"time"
-
+	"github.com/aws/aws-sdk-go/service/iam"
 	"github.com/chrislusf/seaweedfs/weed/glog"
 	"github.com/chrislusf/seaweedfs/weed/s3api/s3err"
-
-	"github.com/aws/aws-sdk-go/service/iam"
+	"net/http"
 )
 
-type mimeType string
-
-const (
-	mimeNone mimeType = ""
-	mimeXML  mimeType = "application/xml"
-)
-
-func setCommonHeaders(w http.ResponseWriter) {
-	w.Header().Set("x-amz-request-id", fmt.Sprintf("%d", time.Now().UnixNano()))
-	w.Header().Set("Accept-Ranges", "bytes")
-}
-
-// Encodes the response headers into XML format.
-func encodeResponse(response interface{}) []byte {
-	var bytesBuffer bytes.Buffer
-	bytesBuffer.WriteString(xml.Header)
-	e := xml.NewEncoder(&bytesBuffer)
-	e.Encode(response)
-	return bytesBuffer.Bytes()
-}
-
-// If none of the http routes match respond with MethodNotAllowed
-func notFoundHandler(w http.ResponseWriter, r *http.Request) {
-	glog.V(0).Infof("unsupported %s %s", r.Method, r.RequestURI)
-	writeErrorResponse(w, s3err.ErrMethodNotAllowed, r.URL)
-}
-
-func writeErrorResponse(w http.ResponseWriter, errorCode s3err.ErrorCode, reqURL *url.URL) {
-	apiError := s3err.GetAPIError(errorCode)
-	errorResponse := getRESTErrorResponse(apiError, reqURL.Path)
-	encodedErrorResponse := encodeResponse(errorResponse)
-	writeResponse(w, apiError.HTTPStatusCode, encodedErrorResponse, mimeXML)
-}
-
 func writeIamErrorResponse(w http.ResponseWriter, err error, object string, value string, msg error) {
 	errCode := err.Error()
 	errorResp := ErrorResponse{}
@@ -64,42 +22,10 @@ func writeIamErrorResponse(w http.ResponseWriter, err error, object string, valu
 	case iam.ErrCodeNoSuchEntityException:
 		msg := fmt.Sprintf("The %s with name %s cannot be found.", object, value)
 		errorResp.Error.Message = &msg
-		writeResponse(w, http.StatusNotFound, encodeResponse(errorResp), mimeXML)
+		s3err.WriteXMLResponse(w, http.StatusNotFound, errorResp)
 	case iam.ErrCodeServiceFailureException:
-		writeResponse(w, http.StatusInternalServerError, encodeResponse(errorResp), mimeXML)
+		s3err.WriteXMLResponse(w, http.StatusInternalServerError, errorResp)
 	default:
-		writeResponse(w, http.StatusInternalServerError, encodeResponse(errorResp), mimeXML)
+		s3err.WriteXMLResponse(w, http.StatusInternalServerError, errorResp)
 	}
 }
-
-func getRESTErrorResponse(err s3err.APIError, resource string) s3err.RESTErrorResponse {
-	return s3err.RESTErrorResponse{
-		Code:      err.Code,
-		Message:   err.Description,
-		Resource:  resource,
-		RequestID: fmt.Sprintf("%d", time.Now().UnixNano()),
-	}
-}
-
-func writeResponse(w http.ResponseWriter, statusCode int, response []byte, mType mimeType) {
-	setCommonHeaders(w)
-	if response != nil {
-		w.Header().Set("Content-Length", strconv.Itoa(len(response)))
-	}
-	if mType != mimeNone {
-		w.Header().Set("Content-Type", string(mType))
-	}
-	w.WriteHeader(statusCode)
-	if response != nil {
-		glog.V(4).Infof("status %d %s: %s", statusCode, mType, string(response))
-		_, err := w.Write(response)
-		if err != nil {
-			glog.V(0).Infof("write err: %v", err)
-		}
-		w.(http.Flusher).Flush()
-	}
-}
-
-func writeSuccessResponseXML(w http.ResponseWriter, response []byte) {
-	writeResponse(w, http.StatusOK, response, mimeXML)
-}

weed/iamapi/iamapi_management_handlers.go

@@ -362,7 +362,7 @@ func (iama *IamApiServer) DeleteAccessKey(s3cfg *iam_pb.S3ApiConfiguration, valu
 
 func (iama *IamApiServer) DoActions(w http.ResponseWriter, r *http.Request) {
 	if err := r.ParseForm(); err != nil {
-		writeErrorResponse(w, s3err.ErrInvalidRequest, r.URL)
+		s3err.WriteErrorResponse(w, s3err.ErrInvalidRequest, r)
 		return
 	}
 	values := r.PostForm
@@ -370,7 +370,7 @@ func (iama *IamApiServer) DoActions(w http.ResponseWriter, r *http.Request) {
 	s3cfgLock.RLock()
 	s3cfg := &iam_pb.S3ApiConfiguration{}
 	if err := iama.s3ApiConfig.GetS3ApiConfiguration(s3cfg); err != nil {
-		writeErrorResponse(w, s3err.ErrInternalError, r.URL)
+		s3err.WriteErrorResponse(w, s3err.ErrInternalError, r)
 		return
 	}
 	s3cfgLock.RUnlock()
@@ -411,14 +411,14 @@ func (iama *IamApiServer) DoActions(w http.ResponseWriter, r *http.Request) {
 		response, err = iama.CreatePolicy(s3cfg, values)
 		if err != nil {
 			glog.Errorf("CreatePolicy:  %+v", err)
-			writeErrorResponse(w, s3err.ErrInvalidRequest, r.URL)
+			s3err.WriteErrorResponse(w, s3err.ErrInvalidRequest, r)
 			return
 		}
 	case "PutUserPolicy":
 		response, err = iama.PutUserPolicy(s3cfg, values)
 		if err != nil {
 			glog.Errorf("PutUserPolicy:  %+v", err)
-			writeErrorResponse(w, s3err.ErrInvalidRequest, r.URL)
+			s3err.WriteErrorResponse(w, s3err.ErrInvalidRequest, r)
 			return
 		}
 	case "GetUserPolicy":
@@ -437,7 +437,7 @@ func (iama *IamApiServer) DoActions(w http.ResponseWriter, r *http.Request) {
 		errorResponse := ErrorResponse{}
 		errorResponse.Error.Code = &errNotImplemented.Code
 		errorResponse.Error.Message = &errNotImplemented.Description
-		writeResponse(w, errNotImplemented.HTTPStatusCode, encodeResponse(errorResponse), mimeXML)
+		s3err.WriteXMLResponse(w, errNotImplemented.HTTPStatusCode, errorResponse)
 		return
 	}
 	if changed {
@@ -449,5 +449,5 @@ func (iama *IamApiServer) DoActions(w http.ResponseWriter, r *http.Request) {
 			return
 		}
 	}
-	writeSuccessResponseXML(w, encodeResponse(response))
+	s3err.WriteXMLResponse(w, http.StatusOK, response)
 }

weed/iamapi/iamapi_server.go

@@ -12,6 +12,7 @@ import (
 	"github.com/chrislusf/seaweedfs/weed/pb/iam_pb"
 	"github.com/chrislusf/seaweedfs/weed/s3api"
 	. "github.com/chrislusf/seaweedfs/weed/s3api/s3_constants"
+	"github.com/chrislusf/seaweedfs/weed/s3api/s3err"
 	"github.com/chrislusf/seaweedfs/weed/wdclient"
 	"github.com/gorilla/mux"
 	"google.golang.org/grpc"
@@ -71,7 +72,7 @@ func (iama *IamApiServer) registerRouter(router *mux.Router) {
 	apiRouter.Methods("POST").Path("/").HandlerFunc(iama.iam.Auth(iama.DoActions, ACTION_ADMIN))
 	//
 	// NotFound
-	apiRouter.NotFoundHandler = http.HandlerFunc(notFoundHandler)
+	apiRouter.NotFoundHandler = http.HandlerFunc(s3err.NotFoundHandler)
 }
 
 func (iam IamS3ApiConfigure) GetS3ApiConfiguration(s3cfg *iam_pb.S3ApiConfiguration) (err error) {
@@ -95,8 +96,8 @@ func (iam IamS3ApiConfigure) GetS3ApiConfiguration(s3cfg *iam_pb.S3ApiConfigurat
 
 func (iam IamS3ApiConfigure) PutS3ApiConfiguration(s3cfg *iam_pb.S3ApiConfiguration) (err error) {
 	buf := bytes.Buffer{}
-	if err := filer.S3ConfigurationToText(&buf, s3cfg); err != nil {
-		return fmt.Errorf("S3ConfigurationToText: %s", err)
+	if err := filer.ProtoToText(&buf, s3cfg); err != nil {
+		return fmt.Errorf("ProtoToText: %s", err)
 	}
 	return pb.WithGrpcFilerClient(
 		iam.option.FilerGrpcAddress,

weed/messaging/broker/broker_grpc_server_subscribe.go

@@ -116,7 +116,7 @@ func (broker *MessageBroker) Subscribe(stream messaging_pb.SeaweedMessaging_Subs
 			lastReadTime = time.Unix(0, processedTsNs)
 		}
 
-		lastReadTime, err = lock.logBuffer.LoopProcessLogData(lastReadTime, func() bool {
+		lastReadTime, err = lock.logBuffer.LoopProcessLogData("broker", lastReadTime, func() bool {
 			lock.Mutex.Lock()
 			lock.cond.Wait()
 			lock.Mutex.Unlock()

weed/messaging/broker/topic_manager.go

@@ -68,7 +68,7 @@ func (tm *TopicManager) buildLogBuffer(tl *TopicControl, tp TopicPartition, topi
 			glog.V(0).Infof("log write failed %s: %v", targetFile, err)
 		}
 	}
-	logBuffer := log_buffer.NewLogBuffer(time.Minute, flushFn, func() {
+	logBuffer := log_buffer.NewLogBuffer("broker", time.Minute, flushFn, func() {
 		tl.cond.Broadcast()
 	})
 

weed/operation/delete_content.go

@@ -100,7 +100,7 @@ func DeleteFilesWithLookupVolumeId(grpcDialOption grpc.DialOption, fileIds []str
 		go func(server string, fidList []string) {
 			defer wg.Done()
 
-			if deleteResults, deleteErr := DeleteFilesAtOneVolumeServer(server, grpcDialOption, fidList, true); deleteErr != nil {
+			if deleteResults, deleteErr := DeleteFilesAtOneVolumeServer(server, grpcDialOption, fidList, false); deleteErr != nil {
 				err = deleteErr
 			} else if deleteResults != nil {
 				resultChan <- deleteResults

weed/operation/needle_parse_test.go

@@ -18,7 +18,7 @@ type MockClient struct {
 }
 
 func (m *MockClient) Do(req *http.Request) (*http.Response, error) {
-	n, originalSize, _, err := needle.CreateNeedleFromRequest(req, false, 1024*1024)
+	n, originalSize, _, err := needle.CreateNeedleFromRequest(req, false, 1024*1024, &bytes.Buffer{})
 	if m.needleHandling != nil {
 		m.needleHandling(n, originalSize, err)
 	}

weed/pb/filer.proto

@@ -208,6 +208,7 @@ message AtomicRenameEntryRequest {
     string old_name = 2;
     string new_directory = 3;
     string new_name = 4;
+    repeated int32 signatures = 5;
 }
 
 message AtomicRenameEntryResponse {
@@ -292,6 +293,7 @@ message GetFilerConfigurationResponse {
     int32 signature = 8;
     string metrics_address = 9;
     int32 metrics_interval_sec = 10;
+    string version = 11;
 }
 
 message SubscribeMetadataRequest {
@@ -361,6 +363,7 @@ message FilerConf {
         string disk_type = 5;
         bool fsync = 6;
         uint32 volume_growth_count = 7;
+        bool read_only = 8;
     }
     repeated PathConf locations = 2;
 }

weed/pb/filer_pb/filer.pb.go

@@ -1382,10 +1382,11 @@ type AtomicRenameEntryRequest struct {
 	sizeCache     protoimpl.SizeCache
 	unknownFields protoimpl.UnknownFields
 
-	OldDirectory string `protobuf:"bytes,1,opt,name=old_directory,json=oldDirectory,proto3" json:"old_directory,omitempty"`
-	OldName      string `protobuf:"bytes,2,opt,name=old_name,json=oldName,proto3" json:"old_name,omitempty"`
-	NewDirectory string `protobuf:"bytes,3,opt,name=new_directory,json=newDirectory,proto3" json:"new_directory,omitempty"`
-	NewName      string `protobuf:"bytes,4,opt,name=new_name,json=newName,proto3" json:"new_name,omitempty"`
+	OldDirectory string  `protobuf:"bytes,1,opt,name=old_directory,json=oldDirectory,proto3" json:"old_directory,omitempty"`
+	OldName      string  `protobuf:"bytes,2,opt,name=old_name,json=oldName,proto3" json:"old_name,omitempty"`
+	NewDirectory string  `protobuf:"bytes,3,opt,name=new_directory,json=newDirectory,proto3" json:"new_directory,omitempty"`
+	NewName      string  `protobuf:"bytes,4,opt,name=new_name,json=newName,proto3" json:"new_name,omitempty"`
+	Signatures   []int32 `protobuf:"varint,5,rep,packed,name=signatures,proto3" json:"signatures,omitempty"`
 }
 
 func (x *AtomicRenameEntryRequest) Reset() {
@@ -1448,6 +1449,13 @@ func (x *AtomicRenameEntryRequest) GetNewName() string {
 	return ""
 }
 
+func (x *AtomicRenameEntryRequest) GetSignatures() []int32 {
+	if x != nil {
+		return x.Signatures
+	}
+	return nil
+}
+
 type AtomicRenameEntryResponse struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache
@@ -2308,6 +2316,7 @@ type GetFilerConfigurationResponse struct {
 	Signature          int32    `protobuf:"varint,8,opt,name=signature,proto3" json:"signature,omitempty"`
 	MetricsAddress     string   `protobuf:"bytes,9,opt,name=metrics_address,json=metricsAddress,proto3" json:"metrics_address,omitempty"`
 	MetricsIntervalSec int32    `protobuf:"varint,10,opt,name=metrics_interval_sec,json=metricsIntervalSec,proto3" json:"metrics_interval_sec,omitempty"`
+	Version            string   `protobuf:"bytes,11,opt,name=version,proto3" json:"version,omitempty"`
 }
 
 func (x *GetFilerConfigurationResponse) Reset() {
@@ -2405,6 +2414,13 @@ func (x *GetFilerConfigurationResponse) GetMetricsIntervalSec() int32 {
 	return 0
 }
 
+func (x *GetFilerConfigurationResponse) GetVersion() string {
+	if x != nil {
+		return x.Version
+	}
+	return ""
+}
+
 type SubscribeMetadataRequest struct {
 	state         protoimpl.MessageState
 	sizeCache     protoimpl.SizeCache
@@ -3135,6 +3151,7 @@ type FilerConf_PathConf struct {
 	DiskType          string `protobuf:"bytes,5,opt,name=disk_type,json=diskType,proto3" json:"disk_type,omitempty"`
 	Fsync             bool   `protobuf:"varint,6,opt,name=fsync,proto3" json:"fsync,omitempty"`
 	VolumeGrowthCount uint32 `protobuf:"varint,7,opt,name=volume_growth_count,json=volumeGrowthCount,proto3" json:"volume_growth_count,omitempty"`
+	ReadOnly          bool   `protobuf:"varint,8,opt,name=read_only,json=readOnly,proto3" json:"read_only,omitempty"`
 }
 
 func (x *FilerConf_PathConf) Reset() {
@@ -3218,6 +3235,13 @@ func (x *FilerConf_PathConf) GetVolumeGrowthCount() uint32 {
 	return 0
 }
 
+func (x *FilerConf_PathConf) GetReadOnly() bool {
+	if x != nil {
+		return x.ReadOnly
+	}
+	return false
+}
+
 var File_filer_proto protoreflect.FileDescriptor
 
 var file_filer_proto_rawDesc = []byte{
@@ -3410,7 +3434,7 @@ var file_filer_proto_rawDesc = []byte{
 	0x72, 0x65, 0x73, 0x22, 0x2b, 0x0a, 0x13, 0x44, 0x65, 0x6c, 0x65, 0x74, 0x65, 0x45, 0x6e, 0x74,
 	0x72, 0x79, 0x52, 0x65, 0x73, 0x70, 0x6f, 0x6e, 0x73, 0x65, 0x12, 0x14, 0x0a, 0x05, 0x65, 0x72,
 	0x72, 0x6f, 0x72, 0x18, 0x01, 0x20, 0x01, 0x28, 0x09, 0x52, 0x05, 0x65, 0x72, 0x72, 0x6f, 0x72,
-	0x22, 0x9a, 0x01, 0x0a, 0x18, 0x41, 0x74, 0x6f, 0x6d, 0x69, 0x63, 0x52, 0x65, 0x6e, 0x61, 0x6d,
+	0x22, 0xba, 0x01, 0x0a, 0x18, 0x41, 0x74, 0x6f, 0x6d, 0x69, 0x63, 0x52, 0x65, 0x6e, 0x61, 0x6d,
 	0x65, 0x45, 0x6e, 0x74, 0x72, 0x79, 0x52, 0x65, 0x71, 0x75, 0x65, 0x73, 0x74, 0x12, 0x23, 0x0a,
 	0x0d, 0x6f, 0x6c, 0x64, 0x5f, 0x64, 0x69, 0x72, 0x65, 0x63, 0x74, 0x6f, 0x72, 0x79, 0x18, 0x01,
 	0x20, 0x01, 0x28, 0x09, 0x52, 0x0c, 0x6f, 0x6c, 0x64, 0x44, 0x69, 0x72, 0x65, 0x63, 0x74, 0x6f,
@@ -3419,7 +3443,9 @@ var file_filer_proto_rawDesc = []byte{
 	0x0d, 0x6e, 0x65, 0x77, 0x5f, 0x64, 0x69, 0x72, 0x65, 0x63, 0x74, 0x6f, 0x72, 0x79, 0x18, 0x03,
 	0x20, 0x01, 0x28, 0x09, 0x52, 0x0c, 0x6e, 0x65, 0x77, 0x44, 0x69, 0x72, 0x65, 0x63, 0x74, 0x6f,
 	0x72, 0x79, 0x12, 0x19, 0x0a, 0x08, 0x6e, 0x65, 0x77, 0x5f, 0x6e, 0x61, 0x6d, 0x65, 0x18, 0x04,
-	0x20, 0x01, 0x28, 0x09, 0x52, 0x07, 0x6e, 0x65, 0x77, 0x4e, 0x61, 0x6d, 0x65, 0x22, 0x1b, 0x0a,
+	0x20, 0x01, 0x28, 0x09, 0x52, 0x07, 0x6e, 0x65, 0x77, 0x4e, 0x61, 0x6d, 0x65, 0x12, 0x1e, 0x0a,
+	0x0a, 0x73, 0x69, 0x67, 0x6e, 0x61, 0x74, 0x75, 0x72, 0x65, 0x73, 0x18, 0x05, 0x20, 0x03, 0x28,
+	0x05, 0x52, 0x0a, 0x73, 0x69, 0x67, 0x6e, 0x61, 0x74, 0x75, 0x72, 0x65, 0x73, 0x22, 0x1b, 0x0a,
 	0x19, 0x41, 0x74, 0x6f, 0x6d, 0x69, 0x63, 0x52, 0x65, 0x6e, 0x61, 0x6d, 0x65, 0x45, 0x6e, 0x74,
 	0x72, 0x79, 0x52, 0x65, 0x73, 0x70, 0x6f, 0x6e, 0x73, 0x65, 0x22, 0xec, 0x01, 0x0a, 0x13, 0x41,
 	0x73, 0x73, 0x69, 0x67, 0x6e, 0x56, 0x6f, 0x6c, 0x75, 0x6d, 0x65, 0x52, 0x65, 0x71, 0x75, 0x65,
@@ -3512,7 +3538,7 @@ var file_filer_proto_rawDesc = []byte{
 	0x63, 0x6f, 0x75, 0x6e, 0x74, 0x18, 0x06, 0x20, 0x01, 0x28, 0x04, 0x52, 0x09, 0x66, 0x69, 0x6c,
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+	0x65, 0x71, 0x75, 0x65, 0x73, 0x74, 0x22, 0xde, 0x02, 0x0a, 0x1d, 0x47, 0x65, 0x74, 0x46, 0x69,
 	0x6c, 0x65, 0x72, 0x43, 0x6f, 0x6e, 0x66, 0x69, 0x67, 0x75, 0x72, 0x61, 0x74, 0x69, 0x6f, 0x6e,
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@@ -3532,197 +3558,201 @@ var file_filer_proto_rawDesc = []byte{
 	0x72, 0x69, 0x63, 0x73, 0x41, 0x64, 0x64, 0x72, 0x65, 0x73, 0x73, 0x12, 0x30, 0x0a, 0x14, 0x6d,
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+	0x65, 0x73, 0x74, 0x1a, 0x23, 0x2e, 0x66, 0x69, 0x6c, 0x65, 0x72, 0x5f, 0x70, 0x62, 0x2e, 0x53,
+	0x75, 0x62, 0x73, 0x63, 0x72, 0x69, 0x62, 0x65, 0x4d, 0x65, 0x74, 0x61, 0x64, 0x61, 0x74, 0x61,
+	0x52, 0x65, 0x73, 0x70, 0x6f, 0x6e, 0x73, 0x65, 0x22, 0x00, 0x30, 0x01, 0x12, 0x56, 0x0a, 0x0d,
+	0x4b, 0x65, 0x65, 0x70, 0x43, 0x6f, 0x6e, 0x6e, 0x65, 0x63, 0x74, 0x65, 0x64, 0x12, 0x1e, 0x2e,
+	0x66, 0x69, 0x6c, 0x65, 0x72, 0x5f, 0x70, 0x62, 0x2e, 0x4b, 0x65, 0x65, 0x70, 0x43, 0x6f, 0x6e,
+	0x6e, 0x65, 0x63, 0x74, 0x65, 0x64, 0x52, 0x65, 0x71, 0x75, 0x65, 0x73, 0x74, 0x1a, 0x1f, 0x2e,
+	0x66, 0x69, 0x6c, 0x65, 0x72, 0x5f, 0x70, 0x62, 0x2e, 0x4b, 0x65, 0x65, 0x70, 0x43, 0x6f, 0x6e,
+	0x6e, 0x65, 0x63, 0x74, 0x65, 0x64, 0x52, 0x65, 0x73, 0x70, 0x6f, 0x6e, 0x73, 0x65, 0x22, 0x00,
+	0x28, 0x01, 0x30, 0x01, 0x12, 0x4f, 0x0a, 0x0c, 0x4c, 0x6f, 0x63, 0x61, 0x74, 0x65, 0x42, 0x72,
+	0x6f, 0x6b, 0x65, 0x72, 0x12, 0x1d, 0x2e, 0x66, 0x69, 0x6c, 0x65, 0x72, 0x5f, 0x70, 0x62, 0x2e,
+	0x4c, 0x6f, 0x63, 0x61, 0x74, 0x65, 0x42, 0x72, 0x6f, 0x6b, 0x65, 0x72, 0x52, 0x65, 0x71, 0x75,
+	0x65, 0x73, 0x74, 0x1a, 0x1e, 0x2e, 0x66, 0x69, 0x6c, 0x65, 0x72, 0x5f, 0x70, 0x62, 0x2e, 0x4c,
+	0x6f, 0x63, 0x61, 0x74, 0x65, 0x42, 0x72, 0x6f, 0x6b, 0x65, 0x72, 0x52, 0x65, 0x73, 0x70, 0x6f,
+	0x6e, 0x73, 0x65, 0x22, 0x00, 0x12, 0x3a, 0x0a, 0x05, 0x4b, 0x76, 0x47, 0x65, 0x74, 0x12, 0x16,
+	0x2e, 0x66, 0x69, 0x6c, 0x65, 0x72, 0x5f, 0x70, 0x62, 0x2e, 0x4b, 0x76, 0x47, 0x65, 0x74, 0x52,
+	0x65, 0x71, 0x75, 0x65, 0x73, 0x74, 0x1a, 0x17, 0x2e, 0x66, 0x69, 0x6c, 0x65, 0x72, 0x5f, 0x70,
+	0x62, 0x2e, 0x4b, 0x76, 0x47, 0x65, 0x74, 0x52, 0x65, 0x73, 0x70, 0x6f, 0x6e, 0x73, 0x65, 0x22,
+	0x00, 0x12, 0x3a, 0x0a, 0x05, 0x4b, 0x76, 0x50, 0x75, 0x74, 0x12, 0x16, 0x2e, 0x66, 0x69, 0x6c,
+	0x65, 0x72, 0x5f, 0x70, 0x62, 0x2e, 0x4b, 0x76, 0x50, 0x75, 0x74, 0x52, 0x65, 0x71, 0x75, 0x65,
+	0x73, 0x74, 0x1a, 0x17, 0x2e, 0x66, 0x69, 0x6c, 0x65, 0x72, 0x5f, 0x70, 0x62, 0x2e, 0x4b, 0x76,
+	0x50, 0x75, 0x74, 0x52, 0x65, 0x73, 0x70, 0x6f, 0x6e, 0x73, 0x65, 0x22, 0x00, 0x42, 0x4f, 0x0a,
+	0x10, 0x73, 0x65, 0x61, 0x77, 0x65, 0x65, 0x64, 0x66, 0x73, 0x2e, 0x63, 0x6c, 0x69, 0x65, 0x6e,
+	0x74, 0x42, 0x0a, 0x46, 0x69, 0x6c, 0x65, 0x72, 0x50, 0x72, 0x6f, 0x74, 0x6f, 0x5a, 0x2f, 0x67,
+	0x69, 0x74, 0x68, 0x75, 0x62, 0x2e, 0x63, 0x6f, 0x6d, 0x2f, 0x63, 0x68, 0x72, 0x69, 0x73, 0x6c,
+	0x75, 0x73, 0x66, 0x2f, 0x73, 0x65, 0x61, 0x77, 0x65, 0x65, 0x64, 0x66, 0x73, 0x2f, 0x77, 0x65,
+	0x65, 0x64, 0x2f, 0x70, 0x62, 0x2f, 0x66, 0x69, 0x6c, 0x65, 0x72, 0x5f, 0x70, 0x62, 0x62, 0x06,
+	0x70, 0x72, 0x6f, 0x74, 0x6f, 0x33,
 }
 
 var (

weed/pb/filer_pb/filer_client.go

@@ -236,7 +236,7 @@ func Mkdir(filerClient FilerClient, parentDirectoryPath string, dirName string,
 	})
 }
 
-func MkFile(filerClient FilerClient, parentDirectoryPath string, fileName string, chunks []*FileChunk) error {
+func MkFile(filerClient FilerClient, parentDirectoryPath string, fileName string, chunks []*FileChunk, fn func(entry *Entry)) error {
 	return filerClient.WithFilerClient(func(client SeaweedFilerClient) error {
 
 		entry := &Entry{
@@ -252,6 +252,10 @@ func MkFile(filerClient FilerClient, parentDirectoryPath string, fileName string
 			Chunks: chunks,
 		}
 
+		if fn != nil {
+			fn(entry)
+		}
+
 		request := &CreateEntryRequest{
 			Directory: parentDirectoryPath,
 			Entry:     entry,

weed/pb/grpc_client_server.go

@@ -4,6 +4,7 @@ import (
 	"context"
 	"fmt"
 	"github.com/chrislusf/seaweedfs/weed/glog"
+	"math/rand"
 	"net/http"
 	"strconv"
 	"strings"
@@ -24,10 +25,16 @@ const (
 
 var (
 	// cache grpc connections
-	grpcClients     = make(map[string]*grpc.ClientConn)
+	grpcClients     = make(map[string]*versionedGrpcClient)
 	grpcClientsLock sync.Mutex
 )
 
+type versionedGrpcClient struct {
+	*grpc.ClientConn
+	version  int
+	errCount int
+}
+
 func init() {
 	http.DefaultTransport.(*http.Transport).MaxIdleConnsPerHost = 1024
 	http.DefaultTransport.(*http.Transport).MaxIdleConns = 1024
@@ -43,7 +50,7 @@ func NewGrpcServer(opts ...grpc.ServerOption) *grpc.Server {
 		}),
 		grpc.KeepaliveEnforcementPolicy(keepalive.EnforcementPolicy{
 			MinTime:             60 * time.Second, // min time a client should wait before sending a ping
-			PermitWithoutStream: false,
+			PermitWithoutStream: true,
 		}),
 		grpc.MaxRecvMsgSize(Max_Message_Size),
 		grpc.MaxSendMsgSize(Max_Message_Size),
@@ -69,7 +76,7 @@ func GrpcDial(ctx context.Context, address string, opts ...grpc.DialOption) (*gr
 		grpc.WithKeepaliveParams(keepalive.ClientParameters{
 			Time:                30 * time.Second, // client ping server if no activity for this long
 			Timeout:             20 * time.Second,
-			PermitWithoutStream: false,
+			PermitWithoutStream: true,
 		}))
 	for _, opt := range opts {
 		if opt != nil {
@@ -79,7 +86,7 @@ func GrpcDial(ctx context.Context, address string, opts ...grpc.DialOption) (*gr
 	return grpc.DialContext(ctx, address, options...)
 }
 
-func getOrCreateConnection(address string, opts ...grpc.DialOption) (*grpc.ClientConn, error) {
+func getOrCreateConnection(address string, opts ...grpc.DialOption) (*versionedGrpcClient, error) {
 
 	grpcClientsLock.Lock()
 	defer grpcClientsLock.Unlock()
@@ -94,23 +101,55 @@ func getOrCreateConnection(address string, opts ...grpc.DialOption) (*grpc.Clien
 		return nil, fmt.Errorf("fail to dial %s: %v", address, err)
 	}
 
-	grpcClients[address] = grpcConnection
+	vgc := &versionedGrpcClient{
+		grpcConnection,
+		rand.Int(),
+		0,
+	}
+	grpcClients[address] = vgc
 
-	return grpcConnection, nil
+	return vgc, nil
 }
 
 func WithCachedGrpcClient(fn func(*grpc.ClientConn) error, address string, opts ...grpc.DialOption) error {
 
-	grpcConnection, err := getOrCreateConnection(address, opts...)
+	vgc, err := getOrCreateConnection(address, opts...)
 	if err != nil {
 		return fmt.Errorf("getOrCreateConnection %s: %v", address, err)
 	}
-	return fn(grpcConnection)
+	executionErr := fn(vgc.ClientConn)
+	if executionErr != nil {
+		vgc.errCount++
+		if vgc.errCount > 3 ||
+			strings.Contains(executionErr.Error(), "transport") ||
+			strings.Contains(executionErr.Error(), "connection closed") {
+			grpcClientsLock.Lock()
+			if t, ok := grpcClients[address]; ok {
+				if t.version == vgc.version {
+					vgc.Close()
+					delete(grpcClients, address)
+				}
+			}
+			grpcClientsLock.Unlock()
+		}
+	}
+
+	return executionErr
 }
 
 func ParseServerToGrpcAddress(server string) (serverGrpcAddress string, err error) {
 	return ParseServerAddress(server, 10000)
 }
+func ParseServersToGrpcAddresses(servers []string) (serverGrpcAddresses []string, err error) {
+	for _, server := range servers {
+		if serverGrpcAddress, parseErr := ParseServerToGrpcAddress(server); parseErr == nil {
+			serverGrpcAddresses = append(serverGrpcAddresses, serverGrpcAddress)
+		} else {
+			return nil, parseErr
+		}
+	}
+	return
+}
 
 func ParseServerAddress(server string, deltaPort int) (newServerAddress string, err error) {
 
@@ -202,3 +241,18 @@ func WithGrpcFilerClient(filerGrpcAddress string, grpcDialOption grpc.DialOption
 	}, filerGrpcAddress, grpcDialOption)
 
 }
+
+func WithOneOfGrpcFilerClients(filerGrpcAddresses []string, grpcDialOption grpc.DialOption, fn func(client filer_pb.SeaweedFilerClient) error) (err error) {
+
+	for _, filerGrpcAddress := range filerGrpcAddresses {
+		err = WithCachedGrpcClient(func(grpcConnection *grpc.ClientConn) error {
+			client := filer_pb.NewSeaweedFilerClient(grpcConnection)
+			return fn(client)
+		}, filerGrpcAddress, grpcDialOption)
+		if err == nil {
+			return nil
+		}
+	}
+
+	return err
+}

weed/replication/sink/azuresink/azure_sink.go

@@ -129,8 +129,7 @@ func (g *AzureSink) CreateEntry(key string, entry *filer_pb.Entry, signatures []
 
 func (g *AzureSink) UpdateEntry(key string, oldEntry *filer_pb.Entry, newParentPath string, newEntry *filer_pb.Entry, deleteIncludeChunks bool, signatures []int32) (foundExistingEntry bool, err error) {
 	key = cleanKey(key)
-	// TODO improve efficiency
-	return false, nil
+	return true, g.CreateEntry(key, newEntry, signatures)
 }
 
 func cleanKey(key string) string {

weed/replication/sink/b2sink/b2_sink.go

@@ -118,11 +118,8 @@ func (g *B2Sink) CreateEntry(key string, entry *filer_pb.Entry, signatures []int
 }
 
 func (g *B2Sink) UpdateEntry(key string, oldEntry *filer_pb.Entry, newParentPath string, newEntry *filer_pb.Entry, deleteIncludeChunks bool, signatures []int32) (foundExistingEntry bool, err error) {
-
 	key = cleanKey(key)
-
-	// TODO improve efficiency
-	return false, nil
+	return true, g.CreateEntry(key, newEntry, signatures)
 }
 
 func cleanKey(key string) string {

weed/replication/sink/gcssink/gcs_sink.go

@@ -116,6 +116,5 @@ func (g *GcsSink) CreateEntry(key string, entry *filer_pb.Entry, signatures []in
 }
 
 func (g *GcsSink) UpdateEntry(key string, oldEntry *filer_pb.Entry, newParentPath string, newEntry *filer_pb.Entry, deleteIncludeChunks bool, signatures []int32) (foundExistingEntry bool, err error) {
-	// TODO improve efficiency
-	return false, nil
+	return true, g.CreateEntry(key, newEntry, signatures)
 }

weed/replication/sink/localsink/local_sink.go

@@ -8,15 +8,15 @@ import (
 	"github.com/chrislusf/seaweedfs/weed/replication/sink"
 	"github.com/chrislusf/seaweedfs/weed/replication/source"
 	"github.com/chrislusf/seaweedfs/weed/util"
-	"io/ioutil"
 	"os"
 	"path/filepath"
 	"strings"
 )
 
 type LocalSink struct {
-	Dir         string
-	filerSource *source.FilerSource
+	Dir           string
+	filerSource   *source.FilerSource
+	isIncremental bool
 }
 
 func init() {
@@ -35,15 +35,17 @@ func (localsink *LocalSink) isMultiPartEntry(key string) bool {
 	return strings.HasSuffix(key, ".part") && strings.Contains(key, "/.uploads/")
 }
 
-func (localsink *LocalSink) initialize(dir string) error {
+func (localsink *LocalSink) initialize(dir string, isIncremental bool) error {
 	localsink.Dir = dir
+	localsink.isIncremental = isIncremental
 	return nil
 }
 
 func (localsink *LocalSink) Initialize(configuration util.Configuration, prefix string) error {
 	dir := configuration.GetString(prefix + "directory")
+	isIncremental := configuration.GetBool(prefix + "is_incremental")
 	glog.V(4).Infof("sink.local.directory: %v", dir)
-	return localsink.initialize(dir)
+	return localsink.initialize(dir, isIncremental)
 }
 
 func (localsink *LocalSink) GetSinkToDirectory() string {
@@ -51,7 +53,7 @@ func (localsink *LocalSink) GetSinkToDirectory() string {
 }
 
 func (localsink *LocalSink) IsIncremental() bool {
-	return true
+	return localsink.isIncremental
 }
 
 func (localsink *LocalSink) DeleteEntry(key string, isDirectory, deleteIncludeChunks bool, signatures []int32) error {
@@ -83,8 +85,18 @@ func (localsink *LocalSink) CreateEntry(key string, entry *filer_pb.Entry, signa
 		}
 	}
 
+	if entry.IsDirectory {
+		return os.Mkdir(key, os.FileMode(entry.Attributes.FileMode))
+	}
+
+	dstFile, err := os.OpenFile(key, os.O_RDWR|os.O_CREATE|os.O_TRUNC, os.FileMode(entry.Attributes.FileMode))
+	if err != nil {
+		return err
+	}
+	defer dstFile.Close()
+
 	writeFunc := func(data []byte) error {
-		writeErr := ioutil.WriteFile(key, data, 0755)
+		_, writeErr := dstFile.Write(data)
 		return writeErr
 	}
 
@@ -101,5 +113,7 @@ func (localsink *LocalSink) UpdateEntry(key string, oldEntry *filer_pb.Entry, ne
 	}
 	glog.V(4).Infof("Update Entry key: %s", key)
 	// do delete and create
-	return false, nil
+	foundExistingEntry = util.FileExists(key)
+	err = localsink.CreateEntry(key, newEntry, signatures)
+	return
 }