Materialized views with tablets are not stable yet, but we want
them available as an experimental feature, mainly for teseting.
The feature was added in scylladb/scylladb#21833,
but currently it has no effect. All tests have been updated to use the
feature, so we should finally make it work.
This patch prevents users from creating materialized views in keyspaces
using tablets when the VIEWS_WITH_TABLETS feature is not enabled - such
requests will now get rejected.
Fixesscylladb/scylladb#21832Closesscylladb/scylladb#22217
(cherry picked from commit 677f9962cf)
Closesscylladb/scylladb#22659
The test expects and asserts that after wait_for_view is completed we
read the view_build_status table and get a row for each node and view.
But this is wrong because wait_for_view may have read the table on one
node, and then we query the table on a different node that didn't insert
all the rows yet, so the assert could fail.
To fix it we change the test to retry and check that eventually all
expected rows are found and then eventually removed on the same host.
Fixesscylladb/scylladb#22547Closesscylladb/scylladb#22585
(cherry picked from commit 44c06ddfbb)
Closesscylladb/scylladb#22608
The view builder builds a view by going over the entire token ring,
consuming the base table partitions, and generating view updates for
each partition.
A view is considered as built when we complete a full cycle of the
token ring. Suppose we start to build a view at a token F. We will
consume all partitions with tokens starting at F until the maximum
token, then go back to the minimum token and consume all partitions
until F, and then we detect that we pass F and complete building the
view. This happens in the view builder consumer in
`check_for_built_views`.
The problem is that we check if we pass the first token F with the
condition `_step.current_token() >= it->first_token` whenever we consume
a new partition or the current_token goes back to the minimum token.
But suppose that we don't have any partitions with a token greater than
or equal to the first token (this could happen if the partition with
token F was moved to another node for example), then this condition will never be
satisfied, and we don't detect correctly when we pass F. Instead, we
go back to the minimum token, building the same token ranges again,
in a possibly infinite loop.
To fix this we add another step when reaching the end of the reader's
stream. When this happens it means we don't have any more fragments to
consume until the end of the range, so we advance the current_token to
the end of the range, simulating a partition, and check for built views
in that range.
Fixesscylladb/scylladb#21829Closesscylladb/scylladb#22493
(cherry picked from commit 6d34125eb7)
Closesscylladb/scylladb#22607
Fixes#22236
If reading a file and not stopping on block bounds returned by `size()`, we could allow reading from (_file_size+<1-15>) (if crossing block boundary) and try to decrypt this buffer (last one).
Simplest example:
Actual data size: 4095
Physical file size: 4095 + key block size (typically 16)
Read from 4096: -> 15 bytes (padding) -> transform return `_file_size` - `read offset` -> wraparound -> rather larger number than we expected (not to mention the data in question is junk/zero).
Check on last block in `transform` would wrap around size due to us being >= file size (l).
Just do an early bounds check and return zero if we're past the actual data limit.
- (cherry picked from commit e96cc52668)
- (cherry picked from commit 2fb95e4e2f)
Parent PR: #22395Closesscylladb/scylladb#22583
* github.com:scylladb/scylladb:
encrypted_file_test: Test reads beyond decrypted file length
encrypted_file_impl: Check for reads on or past actual file length in transform
This is a manual backport of #22452
Truncate table for tablets is implemented as a global topology operation. However, it does not have a transition state associated with it, and performs the truncate logic in topology_coordinator::handle_global_request() while topology::tstate remains empty. This creates problems because topology::is_busy() uses transition_state to determine if the topology state machine is busy, and will return false even though a truncate operation is ongoing.
This change introduces a new topology transition topology::transition_state::truncate_table and moves the truncate logic to a new method topology_coordinator::handle_truncate_table(). This method is now called as a handler of the truncate_table transition state instead of a handler of the truncate_table global topology request.
Fixes#22552Closesscylladb/scylladb#22557
* github.com:scylladb/scylladb:
truncate: trigger truncate logic from transition state instead of global request handler
truncate: add truncate_table transition state
Add a test to reproduce a bug in the read DMA API of
`encrypted_file_impl` (the file implementation for Encryption-at-Rest).
The test creates an encrypted file that contains padding, and then
attempts to read from an offset within the padding area. Although this
offset is invalid on the decrypted file, the `encrypted_file_impl` makes
no checks and proceeds with the decryption of padding data, which
eventually leads to bogus results.
Refs #22236.
Signed-off-by: Nikos Dragazis <nikolaos.dragazis@scylladb.com>
(cherry picked from commit 8f936b2cbc)
(cherry picked from commit 2fb95e4e2f)
Fixes#22236
If reading a file and not stopping on block bounds returned by `size()`, we could
allow reading from (_file_size+1-15) (block boundary) and try to decrypt this
buffer (last one).
Check on last block in `transform` would wrap around size due to us being >=
file size (l).
Simplest example:
Actual data size: 4095
Physical file size: 4095 + key block size (typically 16)
Read from 4096: -> 15 bytes (padding) -> transform return _file_size - read offset
-> wraparound -> rather larger number than we expected
(not to mention the data in question is junk/zero).
Just do an early bounds check and return zero if we're past the actual data limit.
v2:
* Moved check to a min expression instead
* Added lengthy comment
* Added unit test
v3:
* Fixed read_dma_bulk handling of short, unaligned read
* Added test for unaligned read
v4:
* Added another unaligned test case
(cherry picked from commit e96cc52668)
Since now topology does not contain ip addresses there is no need to
create topology on an ip address change. Only peers table has to be
updated. The series factors out peers table update code from
sync_raft_topology_nodes() and calls it on topology and ip address
updates. As a side effect it fixes#22293 since now topology loading
does not require IP do be present, so the assert that is triggered in
this bug is removed.
Fixes: scylladb/scylladb#22293
- (cherry picked from commit ef929c5def)
- (cherry picked from commit fbfef6b28a)
Parent PR: #22519Closesscylladb/scylladb#22543
* github.com:scylladb/scylladb:
topology coordinator: do not update topology on address change
topology coordinator: split out the peer table update functionality from raft state application
Fixes#21993
Removes configuration_encryptor mention from docs.
The tool itself (java) is not included in the main branch
java tools, thus need not remove from there. Only the words.
Closesscylladb/scylladb#22427
(cherry picked from commit bae5b44b97)
Closesscylladb/scylladb#22556
During raft upgrade, a node may gossip about a new CDC generation that
was propagated through raft. The node that receives the generation by
gossip may have not applied the raft update yet, and it will not find
the generation in the system tables. We should consider this error
non-fatal and retry to read until it succeeds or becomes obsolete.
Another issue is when we fail with a "fatal" exception and not retrying
to read, the cdc metadata is left in an inconsistent state that causes
further attempts to insert this CDC generation to fail.
What happens is we complete preparing the new generation by calling `prepare`,
we insert an empty entry for the generation's timestamp, and then we fail. The
next time we try to insert the generation, we skip inserting it because we see
that it already has an entry in the metadata and we determine that
there's nothing to do. But this is wrong, because the entry is empty,
and we should continue to insert the generation.
To fix it, we change `prepare` to return `true` when the entry already
exists but it's empty, indicating we should continue to insert the
generation.
Fixesscylladb/scylladb#21227Closesscylladb/scylladb#22093
(cherry picked from commit 4f5550d7f2)
Closesscylladb/scylladb#22546
This commit adds the OS support information for version 2025.1.
In addition, the OS support page is reorganized so that:
- The content is moved from the include page _common/os-support-info.rst
to the regular os-support.rst page. The include page was necessary
to document different support for OSS and Enterprise versions, so
we don't need it anymore.
- I skipped the entries for versions that won't be supported when 2025.1
is released: 6.1 and 2023.1.
- I moved the definition of "supported" to the end of the page for better
readability.
- I've renamed the index entry to "OS Support" to be shorter on the left menu.
Fixes https://github.com/scylladb/scylladb/issues/22474Closesscylladb/scylladb#22476
(cherry picked from commit 61c822715c)
Closesscylladb/scylladb#22538
Currently, data sync repair handles most no_such_keyspace exceptions,
but it omits the preparation phase, where the exception could be thrown
during make_global_effective_replication_map.
Skip the keyspace repair if no_such_keyspace is thrown during preparations.
Fixes: #22073.
Requires backport to 6.1 and 6.2 as they contain the bug
- (cherry picked from commit bfb1704afa)
- (cherry picked from commit 54e7f2819c)
Parent PR: #22473Closesscylladb/scylladb#22542
* github.com:scylladb/scylladb:
test: add test to check if repair handles no_such_keyspace
repair: handle keyspace dropped
request handler
Before this change, the logic of truncate for tablets was triggered from
topology_coordinator::handle_global_request(). This was done without
using a topology transition state which remained empty throughout the
truncate handler's execution.
This change moves the truncate logic to a new method
topology_coordinator::handle_truncate_table(). This method is now called
as a handler of the truncate_table topology transition state instead of
a handler of the trunacate_table global topology request.
Truncate table for tablets is implemented as a global topology operation.
However, it does not have a transition state associated with it, and
performs the truncate logic in handle_global_request() while
topology::tstate remains empty. This creates problems because
topology::is_busy() uses transition_state to determine if the topology
state machine is busy, and will return false even though a truncate
operation is ongoing.
This change adds a new transition state: truncate_table
Since now topology does not contain ip addresses there is no need to
create topology on an ip address change. Only peers table has to be
updated, so call a function that does peers table update only.
(cherry picked from commit fbfef6b28a)
Raft topology state application does two things: re-creates token metadata
and updates peers table if needed. The code for both task is intermixed
now. The patch separates it into separate functions. Will be needed in
the next patch.
(cherry picked from commit ef929c5def)
Currently, data sync repair handles most no_such_keyspace exceptions,
but it omits the preparation phase, where the exception could be thrown
during make_global_effective_replication_map.
Skip the keyspace repair if no_such_keyspace is thrown during preparations.
(cherry picked from commit bfb1704afa)
* seastar a9bef537...18221366 (33):
> io_queue: fix static member access to comply with CWG2813
> build: add missing include in program_options.cc
> coroutine: move operator co_await(exception) into seastar::coroutine namespace
> fair_queue: Mark entry constructor explicit
> test: Add perf test to measure the "cost" of chain wakeup
> websocket: Support clients that do not specify subprotocol
> websocket: Accept plain const& to string as subprotocol
> perf_tests: Inline print_text_header() into stdout_printer
> perf_tests: Right-align numeric metrics in markdown tables
> scripts/addr2line.py: fix hanging with the new llvm-addr2line version
> Revert "rpc stream: do not abort stream queue if stream connection was closed without error"
> websocket: Convert connection::read_http_upgrade_request() to use coros
> rpc stream: do not abort stream queue if stream connection was closed without error
> linux-aio: remove cpu reduction suggestions
> gitignore: ignore directories that match "build*"
> perf_tests: make column generic
> net: replace deprecated ip::address_v4::from_string()
> file: remove deprecated file lifetime hint APIs
> semaphore: expiry_handler: tunnel exception_ptr to entry
> tests: unit: refactor expected_exception
> semaphore: return early exception before appending wait_list
> semaphore: expiry_handler: refactor exception getters
> abortable_fifo: support OnAbort callbacks accepting exception_ptr
> abort_on_expiry: fix typos in comments
> abort_on_expiry: request_abort with timed_out_error
> Add missing include in dpdk_rte.hh
> build: use path to libraries in .pc
> httpd: drop unnecessary dependencies from httpd.hh
> build: allow CMake to find Boost using package config
> print: remove deprecated print() functions
> github: s/ubuntu-latest/ubuntu-24.04/
> perf_tests: coroutinize main loop
> add perf_tests_perf
Closesscylladb/scylladb#22466
File based stream is a new feature that optimizes tablet movement
significantly. It streams the entire SSTable files without deserializing
SSTable files into mutation fragments and re-serializing them back into
SSTables on receiving nodes. As a result, less data is streamed over the
network, and less CPU is consumed, especially for data models that
contain small cells.
The following patches are imported from the scylla enterprise:
*) Merge 'Introduce file stream for tablet' from Asias He
This patch uses Seastar RPC stream interface to stream sstable files on
network for tablet migration.
It streams sstables instead of mutation fragments. The file based
stream has multiple advantages over the mutation streaming.
- No serialization or deserialization for mutation fragments
- No need to read and process each mutation fragments
- On wire data is more compact and smaller
In the test below, a significant speed up is observed.
Two nodes, 1 shard per node, 1 initial_tablets:
- Start node 1
- Insert 10M rows of data with c-s
- Bootstrap node 2
Node 1 will migration data to node2 with the file stream.
Test results:
1) File stream: bytes on wire = 1132006250 bytes, bw = 836MB/s
[shard 0:stre] stream_blob - stream_sstables[eadaa8e0-a4f2-4cc6-bf10-39ad1ce106b0]
Finished sending sstable_nr=2 files_nr=18 files={} range=(-1,9223372036854775807] bytes_sent=1132006250 stream_bw=836MB/s
[shard 0:stre] storage_service - Streaming for tablet migration of a4f68900-568a-11ee-b7b9-c2b13945eed2:1 took 1.08004s seconds
2) Mutation stream: bytes on wire = 3030004736 bytes, bw = 125410.87 KiB/s = 128MB/s
[shard 0:stre] stream_session - [Stream #406dc8b0-56b5-11ee-bc2d-000bf4871058]
Streaming plan for Tablet migration-ks1-index-0 succeeded, peers={127.0.0.1}, tx=0 KiB, 0.00 KiB/s, rx=2958989 KiB, 125410.87 KiB/s
[shard 0:stre] storage_service - Streaming for tablet migration of a4f68900-568a-11ee-b7b9-c2b13945eed2:1 took 23.5992s seconds
Test Summary:
File stream v.s. Mutation stream improvements
- Stream bandwidth = 836 / 128 (MB/s) = 6.53X
- Stream time = 23.60 / 1.08 (Seconds) = 21.85X
- Stream bytes on wire = 3030004736 / 1132006250 (Bytes)= 2.67X
Closes scylladb/scylla-enterprise#3438
* github.com:scylladb/scylla-enterprise:
tests: Add file_stream_test
streaming: Implement file stream for tablet
*) streaming: Use new take_storage_snapshot interface
The new take_storage_snapshot returns a file object instead of a file
name. This allows the file stream sender to read from the file even if
the file is deleted by compaction.
Closes scylladb/scylla-enterprise#3728
*) streaming: Protect unsupported file types for file stream
Currently, we assume the file streamed over the stream_blob rpc verb is
a sstable file. This patch rejects the unsupported file types on the
receiver side. This allows us to stream more file types later using the
current file stream infrastructure without worrying about old nodes
processing the new file types in the wrong way.
- The file_ops::noop is renamed to file_ops::stream_sstables to be
explicit about the file types
- A missing test_file_stream_error_injection is added to the idl
Fixes: #3846
Tests: test_unsupported_file_ops
Closesscylladb/scylla-enterprise#3847
*) idl: Add service::session_id id to idl
It will be used in the next patch.
Refs #3907
*) streaming: Protect file stream with topology_guard
Similar to "storage_service, tablets: Use session to guard tablet
streaming", this patch protects file stream with topology_guard.
Fixes#3907
*) streaming: Take service topology_guard under the try block
Taking the service::topology_guard could throw. Currently, it throws
outside the try block, so the rpc sink will not be closed, causing the
following assertion:
```
scylla: seastar/include/seastar/rpc/rpc_impl.hh:815: virtual
seastar::rpc::sink_impl<netw::serializer,
streaming::stream_blob_cmd_data>::~sink_impl() [Serializer =
netw::serializer, Out = <streaming::stream_blob_cmd_data>]: Assertion
`this->_con->get()->sink_closed()' failed.
```
To fix, move more code including the topology_guard taking code to the
try block.
Fixes https://github.com/scylladb/scylla-enterprise/issues/4106Closesscylladb/scylla-enterprise#4110
*) Merge 'Preserve original SSTable state with file based tablet migration' from Raphael "Raph" Carvalho
We're not preserving the SSTable state across file based migration, so
staging SSTables for example are being placed into main directory, and
consequently, we're mixing staging and non-staging data, losing the
ability to continue from where the old replica left off.
It's expected that the view update backlog is transferred from old
into new replica, as migration doesn't wait for leaving replica to
complete view update work (which can take long). Elasticity is preferred.
So this fix guarantees that the state of the SSTable will be preserved
by propagating it in form of subdirectory (each subdirectory is
statically mapped with a particular state).
The staging sstables aren't being registered into view update generator
yet, as that's supposed to be fixed in OSS (more details can be found
at https://github.com/scylladb/scylladb/issues/19149).
Fixes#4265.
Closesscylladb/scylla-enterprise#4267
* github.com:scylladb/scylla-enterprise:
tablet: Preserve original SSTable state with file based tablet migration
sstables: Add get method for sstable state
*) sstable: (Re-)add shareabled_components getter
*) Merge 'File streaming sstables: Use sstable source/sink to transfer snapshots' from Calle Wilund
Fixes#4246
Alternative approach/better separation of concern, transport vs. sstable layer. Builds on #4472, but fancier.
Ensures we transfer and pre-process scylla metadata for streamed
file blobs first, then properly apply receiving nodes local config
by using a source and sink layer exported from sstables, which
handles things like ordering, metadata filtering (on source) as well
as handling metadata and proper IO paths when writing data on
receiver node (sink).
This implementation maintains the statelessness of the current
design, and the delegated sink side will re-read and re-write the
metadata for each component processed. This is a little wasteful,
but the meta is small, and it is less error prone than trying to do
caching cross-shards etc. The transport is isolated from the
knowledge.
This is an alternative/complement to #4436 and #4472, fixing the
underlying issue. Note that while the layers/API:s here allows easy
fixing of other fundamental problems in the feature (such as
destination location etc), these are not included in the PR, to keep
it as close to the current behaviour as possible.
Closesscylladb/scylla-enterprise#4646
* github.com:scylladb/scylla-enterprise:
raft_tests: Copy/add a topology test with encryption
file streaming: Use sstable source/sink to transfer snapshots
sstables: Add source and sink objects + producers for transfering a snapshot
sstable::types: Add remove accessor for extension info in metadata
*) The change for error injection in merge commit 966ea5955dd8760:
File streaming now has "stream_mutation_fragments" error injection points
so test_table_dropped_during_streaming works with file streaming.
*) doc: document file-based streaming
This commit adds a description of the file-based streaming feature to the documentation.
It will be displayed in the docs using the scylladb_include_flag directive after
https://github.com/scylladb/scylladb/pull/20182 is merged, backported to branch-6.0,
and, in turn, branch-2024.2.
Refs https://github.com/scylladb/scylla-enterprise/issues/4585
Refs https://github.com/scylladb/scylla-enterprise/issues/4254Closesscylladb/scylla-enterprise#4587
*) doc: move File-based streaming to the Tablets source file-based-streaming
This commit moves the description of file-based streaming from a common include file
to the regular doc source file where tablets are described.
Closesscylladb/scylla-enterprise#4652
*) streaming: sstable_stream_sink_impl: abort: prevent null pointer dereference
Closesscylladb/scylladb#22467
Clang 18.1 with lto gained the ability to eliminate dead stores.
Since debug::the_database is write-only as far as the compiler understands
(it is read only by gdb), all writes to it are eliminated.
Protect writes to the variable by marking it volatile.
Closesscylladb/scylladb#22454
Our CI accidentally switched to using CMake to compile scylla and it looks like CMake doesn't run the `${mode}-headers` command correctly and some missing-include in headers managed to slip in.
Compile fix, no backport needed.
Closesscylladb/scylladb#22471
* github.com:scylladb/scylladb:
test/raft/replication.hh: add missing include <fmt/std.h>
test/boost/bptree_validation.hh: add missing include <fmt/format.h>
This PR contains the missing part of a fix for scylladb/scylla-enterprise#4912 which was omitted during migration of workload prioritization to the source available repository. Even though the regression test for it was ported, it was silently made ineffective by a different fix (scylladb/scylla-enterprise#4764), so this PR also improves the test.
Fixes: scylladb/scylladb#22404
No need to backport - service levels are not yet a part of any source-available release.
Closesscylladb/scylladb#22416
* github.com:scylladb/scylladb:
test/auth_cluster: make test_service_level_metric_name_change useful
main: rename `cql_sg_stats` metrics on scheduling group rename
When the table is stopped, all compaction groups
are stopped, and as part of that, they are flushing
their memtables.
To synchronize with stop-induced flush operation,
move _pending_flushes_phaser.stop() later in table::stop(),
after all compaction groups are flushed and stopped.
This way, in table::flush, if we see that the phaser
is already closed, we know that there is nothing to flush,
otherwise we start a flush operation that would be waited
on by a parallel table::stop().
Fixes#22243
Signed-off-by: Benny Halevy <bhalevy@scylladb.com>
Closesscylladb/scylladb#22339
In order to reduce the dependency on external libraries, and for better integration with ranges in C++ standard library. let's use the homebrew `utils::views::unique()` before unique is accepted by the C++ standard.
---
it's a cleanup, hence no need to backport.
Closesscylladb/scylladb#22393
* github.com:scylladb/scylladb:
cql3, test: switch from boost::adaptors::uniqued to utils::views:unique
utils: implement drop-in replacement for replacing boost::adaptors::uniqued
The log file names created in `scylla_cluster.py` by
`ScyllaClusterManager`
and files to be collected in conftest.py by `manager` should be in
sync. This patch fixes the issue, originally introduced in
scylladb/scylladb#22192Fixesscylladb/scylladb#22387
Backports: 6.1 and 6.2.
Closesscylladb/scylladb#22415
In order to reduce the dependency on external libraries, and for better
integration with ranges in C++ standard library. let's use the homebrew
`utils::views::unique()` before unique is accepted by the C++ standard.
Signed-off-by: Kefu Chai <kefu.chai@scylladb.com>
Add a custom implementation of boost::adaptors::uniqued that is compatible
with C++20 ranges library. This bridges the gap between Boost.Range and
the C++ standard library ranges until std::views::unique becomes available
in C++26. Currently, the unique view is included in
[P2214](https://www.open-std.org/jtc1/sc22/wg21/docs/papers/2023/p2760r0.html)
"A Plan for C++ Ranges Evolution", which targets C++26.
The implementation provides:
- A lazy view adaptor that presents unique consecutive elements
- No modification of source range
- Compatibility with C++20 range views and concepts
- Lighter header dependencies compared to Boost
This resolves compilation errors when piping C++20 range views to
boost::adaptors::uniqued, which fails due to concept requirements
mismatch. For example:
```c++
auto range = std::views::take(n) | boost::adaptors::uniqued; // fails
```
This change also offers us a lightweight solution in terms of smaller
header dependency.
While std::ranges::unique exists in C++23, it's an eager algorithm that
modifies the source range in-place, unlike boost::adaptors::uniqued which
is a lazy view. The proposed std::views::unique (P2214) targeting C++26
would provide this functionality, but is not yet available.
This implementation serves as an interim solution for filtering consecutive
duplicate elements using range views until std::views::unique is
standardized.
For more details on the differences between `std::ranges::unique` and
`boost::adaptors::uniqued`:
- boost::adaptors::uniqued is a view adaptor that creates a lazy view over the original range. It:
* Doesn't modify the source range
* Returns a view that presents unique consecutive elements
* Is non-destructive and lazy-evaluated
* Can be composed with other views
- std::ranges::unique is an algorithm that:
* Modifies the source range in-place
* Removes consecutive duplicates by shifting elements
* Returns an iterator to the new logical end
* Cannot be used as a view or composed with other range adaptors
Signed-off-by: Kefu Chai <kefu.chai@scylladb.com>
Currently, when we load a frozen schema into the registry, we lose
the base info if the schema was of a view. Because of that, in various
places we need to set the base info again, and in some codepaths we
may miss it completely, which may make us unable to process some
requests (for example, when executing reverse queries on views).
Even after setting the base info, we may still lose it if the schema
entry gets deactivated due to all `schema_ptr`s temporarily dying.
To fix this, this patch adds the base schema to the registry, alongside
the view schema. We store just the frozen base schema, so that we can
transfer it across shards. With the base schema, we can now set the base
info when returning the schema from the registry. As a result, we can now
assume that all view schemas returned by the registry have base_info set.
In this series we also make sure that the view schemas in the registry are
kept up-to-date in regards to base schema changes.
Fixes https://github.com/scylladb/scylladb/issues/21354
This issue is a bug, so adding backport labels 6.1 and 6.2
Closesscylladb/scylladb#21862
* github.com:scylladb/scylladb:
test: add test for schema registry maintaining base info for views
schema_registry: avoid setting base info when getting the schema from registry
schema_registry: update cached base schemas when updating a view
schema_registry: cache base schemas for views
db: set base info before adding schema to registry
As discussed in
https://github.com/scylladb/scylladb/issues/12263#issuecomment-1853576813,
compact storage tables are deprecated.
Yet, there's is nothing in the code that prevents users
from creating such tables.
This patch adds a live-updateable config option:
`enable_create_table_with_compact_storage`, set to
`false` by default, that require users to opt-in
in order to create new tables WITH COMPACT STORAGE.
Refs scylladb/scylladb#12263, scylladb/scylladb#16375
* Since this guardrail is an enhancement, no backport is needed
Closesscylladb/scylladb#16403
* github.com:scylladb/scylladb:
docs: ddl: document the deprecation of compact tables
test: enable_create_table_with_compact_storage for tests that need it
config: add enable_create_table_with_compact_storage
The test test_service_level_metric_name_change was originally introduced
to serve as a regression test for scylladb/scylla-enterprise#4912.
Before the fix, some per-scheduling-group metrics would not get adjusted
when the scheduling group gets renamed (which does happen for SL-managed
scheduling groups) and it would be possible to attempt to register
metrics with the same set of labels, resulting in an error.
However, in scylladb/scylla-enterprise#4764, another bug was fixed which
affected the test. Before a service level is created, a "test"
scheduling group can be created by service level controller if it is
unsure whether it is allowed to create more scheduling groups or not. If
creation of the scheduling group succeeds, it is put into the pool of
scheduling groups to be reused when a new service level is created.
Therefore, the node handling CREATE SERVICE LEVEL would always use the
scheduling group that was originally created for the sake of the test as
a SG for the new service level.
All of the above is intentional and was actually fixed by the
aforementioned issue. However, the test scheduling groups would always
get unique names and, therefore, the error would no longer reproduce.
However, the faulty logic that ran previously and caused the bug still
runs - when a node updates its service levels cache on group0 reload.
The test previously used only one node. Fix it by starting two nodes
instead of one at the beginning of the test and by serving all service
level commands to the first node - were the issue not fixed, the error
would get triggered on the second node.
This commit contains the part of a fix
for scylladb/scylla-enterprise#4912 that was accidentally omitted when
workload prioritization were ported from enterprise to scylladb.git
repo. Without it, the metrics created by `cql_sg_stats` would not be
updated, leading to wrong scheduling group names being used in metrics'
names, and could lead to "double metric registration errors" in some
unlucky circumstances where a scheduling group would be created,
destroyed and then created again.
Fixes: scylladb/scylladb#22404
The repair_time in system.tablets will be updated when repair runs
successfully. We can now use it to update the repair time for tombstone
gc, i.e, when the system.tablets.repair_time is propagated, call
gc_state.update_repair_time() on the node that is the owner of the
tablet.
Since b3b3e880d3 ("repair: Reduce hints and batchlog flush"), the
repair time that could be used for tombstone gc might be smaller than
when the repair is started, so the actual repair time for tombstone gc
is returned by the repair rpc call from the repair master node.
Fixes#17507
New feature. No backport is needed.
Closesscylladb/scylladb#21896
* github.com:scylladb/scylladb:
repair: Stop using rpc to update repair time for repairs scheduled by scheduler
repair: Wire repair_time in system.tablets for tombstone gc
test: Disable flush_cache_time for two tablet repair tests
test: Introduce guarantee_repair_time_next_second helper
repair: Return repair time for repair_service::repair_tablet
service: Add tablet_operation.hh
Update configure.py to use wasm32-wasip1 as an alternative to wasm32-wasi,
matching the behavior previously implemented for CMake builds in 8d7786cb0e.
This ensures consistent WASI target handling across both build systems.
Refs #20878
Signed-off-by: Kefu Chai <kefu.chai@scylladb.com>
Closesscylladb/scylladb#22386
File based stream is a new feature that optimizes tablet movement
significantly. It streams the entire SSTable files without deserializing
SSTable files into mutation fragments and re-serializing them back into
SSTables on receiving nodes. As a result, less data is streamed over the
network, and less CPU is consumed, especially for data models that
contain small cells.
The following patches are imported from the scylla enterprise:
*) Merge 'Introduce file stream for tablet' from Asias He
This patch uses Seastar RPC stream interface to stream sstable files on
network for tablet migration.
It streams sstables instead of mutation fragments. The file based
stream has multiple advantages over the mutation streaming.
- No serialization or deserialization for mutation fragments
- No need to read and process each mutation fragments
- On wire data is more compact and smaller
In the test below, a significant speed up is observed.
Two nodes, 1 shard per node, 1 initial_tablets:
- Start node 1
- Insert 10M rows of data with c-s
- Bootstrap node 2
Node 1 will migration data to node2 with the file stream.
Test results:
1) File stream: bytes on wire = 1132006250 bytes, bw = 836MB/s
[shard 0:stre] stream_blob - stream_sstables[eadaa8e0-a4f2-4cc6-bf10-39ad1ce106b0]
Finished sending sstable_nr=2 files_nr=18 files={} range=(-1,9223372036854775807] bytes_sent=1132006250 stream_bw=836MB/s
[shard 0:stre] storage_service - Streaming for tablet migration of a4f68900-568a-11ee-b7b9-c2b13945eed2:1 took 1.08004s seconds
2) Mutation stream: bytes on wire = 3030004736 bytes, bw = 125410.87 KiB/s = 128MB/s
[shard 0:stre] stream_session - [Stream #406dc8b0-56b5-11ee-bc2d-000bf4871058]
Streaming plan for Tablet migration-ks1-index-0 succeeded, peers={127.0.0.1}, tx=0 KiB, 0.00 KiB/s, rx=2958989 KiB, 125410.87 KiB/s
[shard 0:stre] storage_service - Streaming for tablet migration of a4f68900-568a-11ee-b7b9-c2b13945eed2:1 took 23.5992s seconds
Test Summary:
File stream v.s. Mutation stream improvements
- Stream bandwidth = 836 / 128 (MB/s) = 6.53X
- Stream time = 23.60 / 1.08 (Seconds) = 21.85X
- Stream bytes on wire = 3030004736 / 1132006250 (Bytes)= 2.67X
Closes scylladb/scylla-enterprise#3438
* github.com:scylladb/scylla-enterprise:
tests: Add file_stream_test
streaming: Implement file stream for tablet
*) streaming: Use new take_storage_snapshot interface
The new take_storage_snapshot returns a file object instead of a file
name. This allows the file stream sender to read from the file even if
the file is deleted by compaction.
Closes scylladb/scylla-enterprise#3728
*) streaming: Protect unsupported file types for file stream
Currently, we assume the file streamed over the stream_blob rpc verb is
a sstable file. This patch rejects the unsupported file types on the
receiver side. This allows us to stream more file types later using the
current file stream infrastructure without worrying about old nodes
processing the new file types in the wrong way.
- The file_ops::noop is renamed to file_ops::stream_sstables to be
explicit about the file types
- A missing test_file_stream_error_injection is added to the idl
Fixes: #3846
Tests: test_unsupported_file_ops
Closesscylladb/scylla-enterprise#3847
*) idl: Add service::session_id id to idl
It will be used in the next patch.
Refs #3907
*) streaming: Protect file stream with topology_guard
Similar to "storage_service, tablets: Use session to guard tablet
streaming", this patch protects file stream with topology_guard.
Fixes#3907
*) streaming: Take service topology_guard under the try block
Taking the service::topology_guard could throw. Currently, it throws
outside the try block, so the rpc sink will not be closed, causing the
following assertion:
```
scylla: seastar/include/seastar/rpc/rpc_impl.hh:815: virtual
seastar::rpc::sink_impl<netw::serializer,
streaming::stream_blob_cmd_data>::~sink_impl() [Serializer =
netw::serializer, Out = <streaming::stream_blob_cmd_data>]: Assertion
`this->_con->get()->sink_closed()' failed.
```
To fix, move more code including the topology_guard taking code to the
try block.
Fixes https://github.com/scylladb/scylla-enterprise/issues/4106Closesscylladb/scylla-enterprise#4110
*) Merge 'Preserve original SSTable state with file based tablet migration' from Raphael "Raph" Carvalho
We're not preserving the SSTable state across file based migration, so
staging SSTables for example are being placed into main directory, and
consequently, we're mixing staging and non-staging data, losing the
ability to continue from where the old replica left off.
It's expected that the view update backlog is transferred from old
into new replica, as migration doesn't wait for leaving replica to
complete view update work (which can take long). Elasticity is preferred.
So this fix guarantees that the state of the SSTable will be preserved
by propagating it in form of subdirectory (each subdirectory is
statically mapped with a particular state).
The staging sstables aren't being registered into view update generator
yet, as that's supposed to be fixed in OSS (more details can be found
at https://github.com/scylladb/scylladb/issues/19149).
Fixes#4265.
Closesscylladb/scylla-enterprise#4267
* github.com:scylladb/scylla-enterprise:
tablet: Preserve original SSTable state with file based tablet migration
sstables: Add get method for sstable state
*) sstable: (Re-)add shareabled_components getter
*) Merge 'File streaming sstables: Use sstable source/sink to transfer snapshots' from Calle Wilund
Fixes#4246
Alternative approach/better separation of concern, transport vs. sstable layer. Builds on #4472, but fancier.
Ensures we transfer and pre-process scylla metadata for streamed
file blobs first, then properly apply receiving nodes local config
by using a source and sink layer exported from sstables, which
handles things like ordering, metadata filtering (on source) as well
as handling metadata and proper IO paths when writing data on
receiver node (sink).
This implementation maintains the statelessness of the current
design, and the delegated sink side will re-read and re-write the
metadata for each component processed. This is a little wasteful,
but the meta is small, and it is less error prone than trying to do
caching cross-shards etc. The transport is isolated from the
knowledge.
This is an alternative/complement to #4436 and #4472, fixing the
underlying issue. Note that while the layers/API:s here allows easy
fixing of other fundamental problems in the feature (such as
destination location etc), these are not included in the PR, to keep
it as close to the current behaviour as possible.
Closesscylladb/scylla-enterprise#4646
* github.com:scylladb/scylla-enterprise:
raft_tests: Copy/add a topology test with encryption
file streaming: Use sstable source/sink to transfer snapshots
sstables: Add source and sink objects + producers for transfering a snapshot
sstable::types: Add remove accessor for extension info in metadata
*) The change for error injection in merge commit 966ea5955dd8760:
File streaming now has "stream_mutation_fragments" error injection points
so test_table_dropped_during_streaming works with file streaming.
*) doc: document file-based streaming
This commit adds a description of the file-based streaming feature to the documentation.
It will be displayed in the docs using the scylladb_include_flag directive after
https://github.com/scylladb/scylladb/pull/20182 is merged, backported to branch-6.0,
and, in turn, branch-2024.2.
Refs https://github.com/scylladb/scylla-enterprise/issues/4585
Refs https://github.com/scylladb/scylla-enterprise/issues/4254Closesscylladb/scylla-enterprise#4587
*) doc: move File-based streaming to the Tablets source file-based-streaming
This commit moves the description of file-based streaming from a common include file
to the regular doc source file where tablets are described.
Closesscylladb/scylla-enterprise#4652
*) streaming: sstable_stream_sink_impl: abort: prevent null pointer dereference
Closesscylladb/scylladb#22034
