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Chris LuandGitHub 8c7d714d5e Lance catalog, and a Rust plugin worker to maintain it (#10841)
* iceberg: skip tables the maintenance worker does not own

A Lance dataset registered through the Lance namespace's Iceberg REST adapter
arrives as an Iceberg table with a placeholder schema and table_type=lance, and
keeps its fragments under data/ - the same subdirectory the orphan cleaner
walks. Every fragment is unreferenced by the Iceberg metadata, so a maintenance
pass deletes the dataset. Views share the entry shape and were only skipped
because parsing their metadata happened to fail first.

Gate the scan and the execution path on the entry actually being an Iceberg
table. Maintenance is off by default, so this was latent rather than live.

Claude-Session: https://claude.ai/code/session_01Rkp1Mw5E89Jp6dzJFYiMrm

* s3tables: let a table declare a format the catalog does not interpret

CreateTable accepted ICEBERG and nothing else. A Lance table has no metadata
file for the catalog to maintain - the entry records a name and the dataset
root, and the client owns everything under it - so accept LANCE, and carry the
declared format on the entry instead of hardcoding it back on the way out.

ListTables now reports format and metadataLocation, so listing a catalog that
holds both kinds takes one pass rather than a GetTable per row. AWS omits both
fields; adding them is additive.

Claude-Session: https://claude.ai/code/session_01Rkp1Mw5E89Jp6dzJFYiMrm

* s3tables: move the in-memory filer into its own package

The Lance namespace tests need the same harness, and copying it would leave two
of them to keep in step. Extracted as it was, plus the two fidelity gaps that
only surface once a paginating caller uses it: ListEntries ignored
startFromFileName and limit, so a caller that paginates re-read the first page
until it hit its own cap and reported the same entry over and over, and
GetFilerConfiguration was missing, which CreateTableBucket needs to resolve the
buckets directory.

Claude-Session: https://claude.ai/code/session_01Rkp1Mw5E89Jp6dzJFYiMrm

* lance: serve the Lance Namespace REST spec

A second catalog surface beside the Iceberg one, over the same table buckets:
the namespace and table metadata operations, the $-delimited identifier codec,
the spec's numeric error model, the directory-catalog marker files, and
storage_options vending through the STS path the Iceberg catalog already uses.
Listens on -port.lance, 9101 by default, and inherits ARNs, policies and tags
from the storage layer, so a Lance table needs no second permission model.

Identifiers map bucket / namespace / table onto the three levels Lance clients
already use, which is why there is no warehouse selector to invent. The data
plane needs Lance format support that does not exist in Go and answers with the
spec's Unsupported code rather than a bare 404.

Two things it deliberately will not do: create a table bucket as a side effect
of creating a namespace inside one, since a bucket carries its own policy and
lifecycle, and resolve an Iceberg table's location for a Lance client, which
would hand it a table another engine owns.

The design note this follows is in design-lance-catalog.md, including the
.lance directory suffix it proposed and this does not implement.

Claude-Session: https://claude.ai/code/session_01Rkp1Mw5E89Jp6dzJFYiMrm

* mini: give the Lance port the same treatment as the Iceberg one

The flag was registered but nothing else knew about it, so mini would start the
server without reserving its port, waiting for it, or saying where it is. Adds
it to the startup service list, the conflict resolver, the gRPC allocator's
reserved set, the readiness wait, the stop reporting and the banner.

The admin server still takes only the Iceberg port, because there is no Lance
page for it to link to.

Claude-Session: https://claude.ai/code/session_01Rkp1Mw5E89Jp6dzJFYiMrm

* lance: stop deregister and repoint from deleting the dataset

Deregistering preserves data by definition, and this did the opposite: the
catalog entry is the dataset directory, so DeleteTable took the files with it.
Registering over an existing name had the same shape, destroying the dataset
the name used to hold. Found by driving the running server rather than the
in-memory filer, where both looked like success because the table did stop
being listed.

Deregistering is now a state on the entry - the marker file hides it, and
declaring or registering the name again brings it back. Repointing a name at
another dataset is an UpdateTable against the version token, so neither dataset
loses files. Drop is left alone; it is the operation that does remove data.

The storage endpoint now falls back to the advertised -ip where the Iceberg
derivation gives up. An Iceberg client brings its own s3.endpoint and
advertising the wrong one hijacks it, but storage_options is the only place a
Lance client learns where the store is, and without it object_store quietly
talks to real AWS.

Claude-Session: https://claude.ai/code/session_01Rkp1Mw5E89Jp6dzJFYiMrm

* s3tables: refuse to create a table over one of another format

Creating a table that already exists is idempotent, and that path returned the
existing table without looking at its format. A Lance declare over an Iceberg
table answered 200 and handed back a directory Iceberg owns, so the client
would write its dataset on top. The view check immediately above it already
guards the same class of collision.

Claude-Session: https://claude.ai/code/session_01Rkp1Mw5E89Jp6dzJFYiMrm

* s3tables: let a table bucket hold a format other than Iceberg

The S3 door validated every object written into a table bucket against
Iceberg's file layout, so a Lance client could not write its dataset at all: it
got 403 on data/*.lance, on _versions/, and on the _transactions/ directory it
turned out to write as well. Table buckets were only neutral containers by
intention; in practice they were Iceberg-shaped and enforced as such.

The allowed set is now the union of what the supported formats write, because
the validator runs where the table's format is not in hand. Underscore-prefixed
directories are treated as belonging to the format, since enumerating them
means guessing at the next one - _transactions is exactly the one this missed -
and their contents are checked only for traversal. Iceberg writes none of them,
so it loses nothing. Marker files at the table root are admitted too, which the
namespace/table/dir/file shape had rejected as too shallow.

Describe also honours the request-body spellings of with_table_uri,
load_detailed_metadata and check_declared. The spec puts them in the query
string, but real clients send both.

Claude-Session: https://claude.ai/code/session_01Rkp1Mw5E89Jp6dzJFYiMrm

* design: record what the implementation found

The table bucket being an Iceberg-shaped container, enforced at the S3 door,
was the premise this design never questioned and the one that had to change
before anything worked end to end.

Claude-Session: https://claude.ai/code/session_01Rkp1Mw5E89Jp6dzJFYiMrm

* iceberg: prove the data loss the foreign-format guard prevents

The guard landed with a unit test for the predicate and nothing showing what it
saves. These seed what the Lance namespace's Iceberg REST adapter actually
leaves behind - an Iceberg table with a placeholder schema and table_type=lance
whose directory holds a Lance dataset - and assert both halves: orphan
collection does flag the dataset's fragments, because the Iceberg metadata
beside them references nothing, and the scan never reaches the table. An
ordinary Iceberg table in the same shape is still scanned, so the guard is not
just skipping everything.

Confirmed against a running gateway first: our Iceberg catalog accepts the
adapter's registration, and a real Lance client then writes a dataset into that
table's location.

Claude-Session: https://claude.ai/code/session_01Rkp1Mw5E89Jp6dzJFYiMrm

* s3tablestest: make the in-memory filer safe to race against

Two gaps that only matter once a test drives concurrent writers, which is what
an exclusive create has to be tested with: the entry map had no lock, and
CreateEntry ignored O_EXCL entirely, so both writers of the same name would
have won and the test would have passed while proving nothing.

The BeforeUpdate hook runs before the lock is taken. Its whole purpose is to
land a competing write in a handler's read-to-write window, and that write
needs the lock the hook would otherwise be holding.

Claude-Session: https://claude.ai/code/session_01Rkp1Mw5E89Jp6dzJFYiMrm

* lance: make the namespace an external manifest store

Lance commits a version by writing _versions/{v}.manifest with
put-if-not-exists. The S3 layer in front of this same filer evaluates
If-None-Match by looking the entry up and then writing without a precondition,
so two writers can both pass the check and one commit is lost. The filer itself
has the primitive: CreateEntry with o_excl.

Adds the four version operations a Lance client actually calls - create, list,
describe and batch-delete - recording one entry per version under
_lance_versions/, and advertises managed_versioning so the client routes its
commits here. Reserving a version is the exclusive create, so exactly one of
several racing writers wins and the rest rebase.

Off by default, behind -lance.managedVersioning. Turning it on moves where a
table's version history lives, and a reader that does not come through this
namespace no longer sees all of it; that is the operator's call, not a default.

Claude-Session: https://claude.ai/code/session_01Rkp1Mw5E89Jp6dzJFYiMrm

* design: record what managed versioning does and does not reach

The first commit through a namespace-backed store works and is recorded the way
the protocol specifies. Later commits do not, because lance 4.0.0 refuses
put_if_exists on that path in its own code, so the feature is capped upstream
rather than here.

Claude-Session: https://claude.ai/code/session_01Rkp1Mw5E89Jp6dzJFYiMrm

* test: integration tests for the Lance namespace

Everything this surface got wrong so far - a deregister that deleted the
dataset, an S3 door that refused every Lance file, a version reservation that
could not actually be exclusive - passed against an in-memory filer first. So
these run against a live gateway, and where the claim is about data they check
storage rather than visibility.

Five Go tests on the shared harness: namespace and table lifecycle including
that deregister keeps the bytes and drop removes them, that a Lance client
cannot resolve or declare over an Iceberg table, that a Lance dataset's files
get past the table-bucket layout guard while junk still does not, and that
eight writers racing for one version produce exactly one winner.

One Docker-gated test drives the real Lance client, which is the only way to
check that the location and storage_options the namespace vends are between
them enough to write and read a dataset. It overrides the endpoint with the
container's view of the same gateway, because the shared harness binds a
wildcard address and so vends none.

The harness gains a Lance port and turns managed versioning on; the flag
touches nothing outside that surface.

Claude-Session: https://claude.ai/code/session_01Rkp1Mw5E89Jp6dzJFYiMrm

* s3tables: a directory with no namespace metadata is a missing namespace

Three callers resolved a namespace by reading its metadata attribute and each
tested only for a missing entry, so a directory that carried no metadata came
back as an internal error saying "attribute not found". Creating a table under
a namespace that does not exist answered 500.

Collapses the three copies into one helper that reports both conditions as
absent, which is what they are: a directory without namespace metadata is not a
namespace.

Claude-Session: https://claude.ai/code/session_01Rkp1Mw5E89Jp6dzJFYiMrm

* iceberg: stop reporting storage-layer refusals as server faults

writeManagerError recognised a missing table bucket and sent everything else to
500, so a missing namespace, a duplicate name and a commit conflict all reached
the client as InternalServerError with nothing to act on. Creating a table in a
namespace that does not exist is the case that turned up: 500 where the spec
wants 404 NoSuchNamespaceException.

Maps the storage error types onto the exception names this package already
uses, and keeps the existing bucket message, which explains how to select a
table bucket.

Claude-Session: https://claude.ai/code/session_01Rkp1Mw5E89Jp6dzJFYiMrm

* iceberg: skip a foreign-format table by name, not by failing to parse it

A table the namespace created as LANCE carries no Iceberg metadata, so the
worker skipped it only because the parse failed, and logged that as damaged
metadata. The catalog records the format on the entry and this never read it.

Reading it turns an accident into a decision, and separates a mixed catalog
from a corrupt one in the logs. The property check beside it still covers the
other shape: a real Iceberg table wearing table_type=lance, which is what the
Lance namespace's Iceberg REST adapter writes.

Claude-Session: https://claude.ai/code/session_01Rkp1Mw5E89Jp6dzJFYiMrm

* design: answer whether a Lance table needs maintenance

It does, and index optimization has no Iceberg equivalent: rows written after
an index was built are not covered by it, so a vector search quietly misses
them. None of the three jobs can run in the Go worker, and there is no useful
subset, because deciding what an old version still references means parsing
Lance manifests. Version cleanup at least has an answer that needs nothing from
us - Lance can enable it on the dataset itself.

Claude-Session: https://claude.ai/code/session_01Rkp1Mw5E89Jp6dzJFYiMrm

* design: the Lance maintenance worker is a plugin worker, in Rust

Framing it as a sidecar was wrong. plugin.proto already defines a
language-agnostic gRPC contract for external maintenance workers, and
"weed worker -admin=..." is the Go reference implementation of it from outside
the admin process. seaweed-volume already compiles protos out of weed/pb with
tonic_build, so a Lance worker is that build plus plugin.proto and the lance
crate.

Scheduling, retries, dedupe, progress and the admin settings page all come from
the protocol: a worker that answers RequestConfigSchema with a descriptor gets
its configuration form rendered without a line of Go.

The data plane is the part that genuinely does need a process answering HTTP,
and this had the two conflated.

Claude-Session: https://claude.ai/code/session_01Rkp1Mw5E89Jp6dzJFYiMrm

* seaweed-worker: Rust plugin worker workspace, with Lance as the first one

plugin.proto is language-agnostic and the Rust toolchain was already in the
tree, so a Lance maintenance worker needs no new integration surface: core is
the contract and nothing else, and a worker crate beside it supplies handlers
and a binary. A second worker is a new member here rather than a fork of the
protocol, which is why this is seaweed-worker and not seaweed-lance-worker.

Verified against a running admin: it connects, is accepted, and admin prefetches
descriptors for lance_compact, lance_optimize_indices and lance_cleanup_versions,
so their settings pages render from the Rust side without a line of Go. The
stream stays up across heartbeats.

The job bodies are stubs that report failure. Doing the work means adding the
lance crate and opening the dataset, and claiming success before that would be
worse than saying so.

Two things running it caught that reading the proto did not: the admin address
has to be converted to the gRPC port the way pb.ServerToGrpcAddress does, or the
dial fails as an h2 frame error; and the generated field names differ from the
Go ones in several places, so JobCompleted carries success rather than a state
enum.

Claude-Session: https://claude.ai/code/session_01Rkp1Mw5E89Jp6dzJFYiMrm

* lance worker: implement compaction

Detection lists tables from the namespace, opens each one, and proposes a job
for any with more fragments than the policy allows; opening a dataset reads its
manifest and not its data, so a sweep stays cheap. Execution re-resolves the
table rather than trusting what detection saw - it may have been repointed, and
the vended credentials expire - then compacts and reports the fragment counts
either side.

Verified against a live gateway: a twelve-fragment dataset became one fragment
with all twelve rows intact. The test drives the handler directly and skips
unless WEED_LANCE_NAMESPACE names a namespace, the way the Go integration tests
skip without Docker.

Running it turned up a gap the design had not: a gateway without STS vends no
credentials at all, so the worker could not open anything and detection quietly
proposed nothing. --access-key/--secret-key are the fallback, and whatever the
namespace vends still wins over them.

Two API assumptions did not survive contact either. Datasets open through
DatasetBuilder::with_storage_options, not ReadParams, and lance 10's
ObjectStoreParams has no storage_options field at all.

Claude-Session: https://claude.ai/code/session_01Rkp1Mw5E89Jp6dzJFYiMrm

* lance worker: implement index optimization and version cleanup

Index optimization is the job with no Iceberg equivalent: rows appended after
an index was built are invisible to a search of it until this runs. Detection
reads num_unindexed_rows from each index's statistics and proposes a table once
more rows sit outside its indices than the budget allows; a table with no
indices is skipped, which is different from one whose indices have fallen
behind.

Cleanup applies a retention window, refusing rather than silently dropping a
tagged version, and leaving unverified files alone because they may belong to a
commit still in flight.

Both verified against a live gateway: 512 uncovered rows became 0, and a
fourteen-version table lost its old ones. Each test now seeds what it needs,
including building an IVF_PQ index and appending rows outside it. The first
version of these depended on state a script had left, so the second run found
the work already done and asserted nothing - a test that passes by doing
nothing is worse than no test.

Claude-Session: https://claude.ai/code/session_01Rkp1Mw5E89Jp6dzJFYiMrm

* lance: answer an empty catalog with an empty list, not null

ListAllTables built its result from a nil slice, so a namespace holding no
tables answered {"tables":null} on a field the spec marks required. A generated
client may decode that differently from an empty list. Found running the
namespace on a dev box, where the catalog was empty.

Claude-Session: https://claude.ai/code/session_01Rkp1Mw5E89Jp6dzJFYiMrm

* admin: give Lance maintenance its own scheduler lane

Lane assignment is a hardcoded map, so the three lance_* job types fell through
to the default lane. That lane serialises its work under the cluster admin lock
because volume management shares global state, which would queue a table's
compaction behind volume balancing for no reason - Iceberg has its own
lock-free lane for exactly this.

Adds the lane, maps the three job types to it, and puts it in the sidebar
beside Iceberg and Lifecycle. The lane routes were already generic, so only the
nav was hand-written.

The lane-coverage test spelled out the three known lanes, so a fourth failed
it. It now checks against AllLanes(), which is the property it was reaching for
and does not need editing next time.

Found by connecting the Rust worker to a real admin: it registered fine and its
job types were known, but they were filed under "default" and had no page.

Claude-Session: https://claude.ai/code/session_01Rkp1Mw5E89Jp6dzJFYiMrm

* lance worker: log what detection saw

"Detection proposed nothing" and "the worker could not read the table" look
identical from the admin side, and the second is what a missing credential
produces. One line per table separates them.

Claude-Session: https://claude.ai/code/session_01Rkp1Mw5E89Jp6dzJFYiMrm

* lance worker: fix a leaked heartbeat and a silent reconnect loop

spawn_heartbeat returned a handle to an empty task rather than the ticker it
had just spawned, so aborting it aborted nothing and every reconnect left
another heartbeat running against a dead channel.

A stream that admin closes cleanly is not an error, but reconnecting in silence
hides why. Two workers sharing an id evict each other forever and the log shows
nothing but a login every five seconds - which is exactly how this presented on
a dev box, and it took a look at the admin's own log to see it. The message now
names the id to check.

Claude-Session: https://claude.ai/code/session_01Rkp1Mw5E89Jp6dzJFYiMrm

* lance: a namespace cannot be created without its parent

Storage keeps a namespace's parts flattened, so creating "a.b" with no "a"
was accepted and left an intermediate that only existed inside a name. Listing
derives child names by slicing those parts, so it reported "a", while describe
and exists on "a" both answered 404 - a client walking the tree got a 404 on
something the listing had just handed it.

The spec asks for NamespaceNotFound when the parent is missing, which is also
what keeps listing and describe telling the same story.

Namespaces created through the S3 Tables API still bypass this, so listing
keeps deriving intermediates rather than hiding whatever is already there.

Claude-Session: https://claude.ai/code/session_01Rkp1Mw5E89Jp6dzJFYiMrm

* admin: say why a non-Iceberg table shows no schema

The table pages read Iceberg metadata for schema and snapshots, and a Lance
table has none, so both panels rendered "No schema available" - which reads as
an empty table rather than a table this page cannot describe. The dataset
behind the one that prompted this holds 1024 rows.

The format is already on the entry and shown two rows above, so the empty
states now use it: the catalog records where a LANCE table lives, not what is
in it.

Reading the schema for real needs Lance format code, which is the same wall as
the data plane.

Claude-Session: https://claude.ai/code/session_01Rkp1Mw5E89Jp6dzJFYiMrm

* seaweed-worker: run rustfmt over the workspace

Committed the crates unformatted, so `cargo fmt --all --check` failed on
files nothing had touched since.

Claude-Session: https://claude.ai/code/session_01Rkp1Mw5E89Jp6dzJFYiMrm

* plugin: let a worker report what it saw about an object

Admin cannot read a Lance table: it knows where the dataset lives and
nothing else, so the details page had a location and two empty panels.
The worker already opens every dataset during detection to decide whether
it needs compacting, so it knows the schema, the row count and the
fragment count at that moment. It just had no way to say so.

Add a WorkerObservations body to the worker stream. Admin caches the last
observation per object and serves it back, timestamped, for display;
nothing schedules from it. The Lance compaction sweep reports what it
opened, and the S3 Tables details page fills its schema panel from the
cache when it has no metadata of its own, badged with when the worker
looked and which worker it was.

Nothing about this is Lance-specific past the reporting side, which is
the point: any format admin cannot parse can describe itself the same way.

Claude-Session: https://claude.ai/code/session_01Rkp1Mw5E89Jp6dzJFYiMrm

* design: record the observation channel

Claude-Session: https://claude.ai/code/session_01Rkp1Mw5E89Jp6dzJFYiMrm

* plugin: ask a worker for sample rows of a table admin cannot read

Browse Data reads an Iceberg table's Parquet files directly, so it shows
real rows. For a Lance table it showed "Table has no Iceberg metadata"
and an empty grid, because there is no Go Lance reader and never will be
one worth maintaining.

The worker has the reader. Add RequestObjectPreview / ObjectPreviewResponse
to the stream, mirroring the config-schema round trip that already exists,
and give the Rust worker a PreviewProvider that scans the dataset and
formats the rows with Arrow's own formatter, so a vector column reads as a
vector. Admin picks the worker from the observation store: whichever one
last described this table is the one that can read it.

Unlike an observation the rows are not cached. They are the table's data
rather than a description of it, and a copy sitting in admin would be both
stale and nobody's business. The page fetches on load, bounded at 200 rows
and a 15 second round trip, and drops the snapshot and data-file panels
that only mean something for Iceberg.

Claude-Session: https://claude.ai/code/session_01Rkp1Mw5E89Jp6dzJFYiMrm

* design: record the preview channel

Claude-Session: https://claude.ai/code/session_01Rkp1Mw5E89Jp6dzJFYiMrm

* test: disable the lance listener when two gateways share a host

* test: keep AllocatePorts away from the lance default port

* s3tables: let a table bucket declare the format it holds

A bucket is a catalog, and a catalog serves one protocol. Format was
recorded per table, so nothing could answer "where do I point a client at
this bucket" without opening a table first, and an empty bucket had no
answer at all.

CreateTableBucket takes an optional format, stored with the rest of the
bucket metadata and returned by Get and List. Empty means ICEBERG, which
is what AWS S3 Tables serves and therefore what an SDK that has never
heard of the field means. CreateTable refuses a table of another format,
and CreateView refuses outright in a bucket that is not Iceberg, since a
view is Iceberg metadata.

Buckets that already exist carry no declaration and keep accepting
anything, so nothing is migrated and nothing that worked stops working.
The Lance namespace declares LANCE for the buckets it creates, which is
what stops one of them being described to a client as an Iceberg catalog.

Claude-Session: https://claude.ai/code/session_01Rkp1Mw5E89Jp6dzJFYiMrm

* admin: take the Lance port the way it takes the Iceberg one

The UI cannot name the endpoint that serves a Lance bucket without it,
and every format-aware page below needs to.

Claude-Session: https://claude.ai/code/session_01Rkp1Mw5E89Jp6dzJFYiMrm

* admin: show which format a table bucket holds

The bucket list printed an Iceberg endpoint for every bucket, including
ones holding Lance datasets, where that endpoint serves nothing. It was
the most visible place the UI assumed one format.

The list gains a Format column and its endpoint column follows the
bucket's declaration. The banner names both endpoints rather than
asserting everything is Iceberg, and says so only for the servers that
are actually running. Create Bucket picks a format with two cards rather
than a dropdown, since what matters is not the name but which clients can
read the result, and the endpoint under them updates as you choose so the
operator leaves the modal knowing where to point one.

A bucket from before the declaration existed shows "unset" in an outline
badge, explained on hover. It is a fact about the bucket's age, not a
fault, so nothing nags about it.

Claude-Session: https://claude.ai/code/session_01Rkp1Mw5E89Jp6dzJFYiMrm

* admin: carry the bucket's format into the pages inside it

Namespaces and tables are reached through a bucket, so both now say which
catalog they belong to rather than making you go back up to find out. The
tables list gains a Format column and a Rows column filled from what a
worker last observed, since for a format admin cannot read that is the
only row count there is; a table nothing has looked at shows a dash, not
a zero.

Create Table stops offering a choice the bucket has already made: in a
declared bucket the format is fixed and says why, and only an undeclared
one still offers both. Before this the select had exactly one option,
hardcoded, which made a Lance table impossible to create from the UI at
all.

Claude-Session: https://claude.ai/code/session_01Rkp1Mw5E89Jp6dzJFYiMrm

* admin: let the table page speak the table's own format

Partitions and Snapshot History are Iceberg's shape. Rendering them empty
for a Lance table reads as a fault; a Lance table has neither, and says
so by not showing them. In their place is a Versions panel, which is what
that format calls its history, carrying the worker's timestamp so it is
clear the numbers are a cached look rather than something read live.

The breadcrumb carries the format badge, so the page names what it is
looking at before you read a panel and wonder why it is empty.

Claude-Session: https://claude.ai/code/session_01Rkp1Mw5E89Jp6dzJFYiMrm

* admin: show how to connect to either catalog, and group the two format workers

The client examples on the buckets page were Iceberg's alone, so the one
thing an operator wants after creating a Lance bucket - what to type to
reach it - was not written down anywhere in the UI. Both formats now get
a pair of snippets, and only for a server that is running.

In the Workers menu, Iceberg moves below Lifecycle so it sits next to
Lance: the two table-format workers together, the two cluster-wide ones
above them.

Claude-Session: https://claude.ai/code/session_01Rkp1Mw5E89Jp6dzJFYiMrm

* shell: create a table bucket of either format

s3tables.bucket -create takes -format, so a Lance bucket can be made
without going through the UI. The integration harness passes it too: its
Lance tests were creating Iceberg buckets and getting away with it only
because nothing checked.

Claude-Session: https://claude.ai/code/session_01Rkp1Mw5E89Jp6dzJFYiMrm

* design: record that a bucket declares its format

Claude-Session: https://claude.ai/code/session_01Rkp1Mw5E89Jp6dzJFYiMrm

* lance: drop managed versioning; the store already orders commits

The namespace offered itself as an external manifest store, so that a
commit could reserve a version through a real put-if-not-exists. That was
designed around a gateway that no longer exists: If-None-Match: * is
reduced to a filer WriteCondition and evaluated at the object's owner
under its per-path lock, or under the object write lock on the fallback
path. Sixteen writers racing one fresh key get a single 200 and fifteen
412s, every time.

Lance needs nothing else. commit_handler_from_url hands every s3:// dataset
a ConditionalPutCommitHandler, which puts with PutMode::Create, which
object_store sends as If-None-Match: *. So the feature solved a problem
this store does not have, while moving a table's version history out of
the dataset and into the catalog - and lance could not use it past the
first commit anyway, since its own namespace-backed store answers
"put_if_not_exists is not supported" to the second.

The version operations answer Unsupported with the rest, managed_versioning
is false, and the flag is gone. In place of the reserve-once test there is
one that races eight writers at the manifest key through S3, which is the
path a commit actually takes.

Claude-Session: https://claude.ai/code/session_01Rkp1Mw5E89Jp6dzJFYiMrm

* lance worker: honour the version floor, the slot limits, and a shutdown

Five findings from review, all of them things the worker claimed to do and
did not.

The version floor was checked when a cleanup job was proposed and ignored
when it ran, so a table whose versions had aged past the retention window
in between could be taken below the count the operator asked to keep.
Execution now computes the floor itself and passes it as before_version;
CleanupPolicy ANDs its clauses, so a version has to be both too old and
below the floor to go. Both settings are clamped to the range the form
offers, since Duration::hours panics on a large enough value and a
negative min-versions wraps to a huge usize.

Admin's shutdown was answered by returning from the stream, which the
reconnect loop read as a healthy close and logged straight back in: the
worker could not be stopped. serve_once now says which of the two
happened.

The advertised concurrency limits bounded nothing - every request spawned
a task - and the heartbeat reported zero slots in use whatever was
running. Both now go through semaphores sized from the limits, with the
permits held for the life of the request and reported in the heartbeat.

A namespace call had no timeout, so a gateway that accepted the connection
and went quiet held a detection slot forever. And one table whose stats
could not be read failed the whole sweep, losing the proposals for every
table already scanned; it is now skipped and warned about, like a table
that cannot be opened.

The tests drove one shared catalog concurrently, which is why one of them
asserted "no proposals at all" and passed by luck. They now take a lock
and judge only their own tables.

Claude-Session: https://claude.ai/code/session_01Rkp1Mw5E89Jp6dzJFYiMrm

* admin: fix the review findings on the format-aware pages

The endpoint hint in Create Bucket built its HTML by concatenating the
bucket name the operator is typing, so a name like <img onerror=...> ran
in the admin origin as they typed it. It is built from DOM nodes now.

A preview reply looked its channel up under the lock and then sent outside
it, which Shutdown can close in between: a Gosched in that gap panics with
"send on closed channel" every time. The send now happens under the lock.

Observations were looked up by path alone, so a table dropped and remade
in another format at the same path was described by the observation left
behind. Lookups now have to agree on the format.

Also: the Lance namespace caps a request body rather than reading whatever
arrives; the details action no longer says "Iceberg" over a Lance table;
mini stops advertising a catalog port when it is not running S3; a format
whose server this cluster does not run cannot be picked in the modal or
accepted by the API, since a bucket nothing can reach is not worth
creating; and the unused catalogPortFor helper is gone.

Claude-Session: https://claude.ai/code/session_01Rkp1Mw5E89Jp6dzJFYiMrm

* lance worker: let the control stream use mTLS

The channel was hardcoded to http://, so off loopback the stream carried
preview rows and execution commands in the clear - and a cluster with grpc
TLS turned on would refuse the worker outright.

--tls-ca, --tls-cert and --tls-key take the same certificates the Go
worker reads from the [grpc.worker] section of security.toml, and must be
given together: a CA on its own would quietly mean one-way TLS, which a
mutual setup rejects anyway. Without them the stream stays plaintext,
which is what the Go worker also does when nothing is configured.

Claude-Session: https://claude.ai/code/session_01Rkp1Mw5E89Jp6dzJFYiMrm

* lance: answer null properties rather than an empty map

The catalog does not keep a table's properties. Declare echoed the
request's back and describe answered {}, both of which claim they were
stored and are empty. Null says the catalog does not keep them, which is
what the spec distinguishes and what is true here.

Claude-Session: https://claude.ai/code/session_01Rkp1Mw5E89Jp6dzJFYiMrm

* lance worker: test the slot accounting

The heartbeat reporting and the waiting are the two things the semaphores
are for, and neither is observable from outside without catching a sweep
mid-flight.

Claude-Session: https://claude.ai/code/session_01Rkp1Mw5E89Jp6dzJFYiMrm

* test: fix the mixed-format catalog test, and name the binary it drives

The integration suite passed locally and failed in CI on
TestLanceRefusesIcebergTables. Both were right: CI builds the binary
first, my tree had one from the day before, so locally the test drove a
gateway with no format enforcement at all.

The test itself no longer holds as written. It made a bucket, put an
Iceberg table in it, and checked the Lance surface hid it - but a bucket
that declares LANCE now refuses the Iceberg table outright. The invariant
still matters from the other side, so it starts from an Iceberg bucket
instead: Lance must not describe or list a table whose format it does not
serve, and must refuse to declare one beside it.

The harness now prints which weed binary it is about to run and when that
was built. `make test` rebuilds first; a plain `go test` will happily
drive a weeks-old binary and report a pass for code it never ran, which is
exactly what happened here.

Also make the row-limit conversion in the preview request explicitly
bounded: CodeQL flagged the int-to-int32 conversion, and clamping by
reassignment beforehand is not a form it recognises.

Claude-Session: https://claude.ai/code/session_01Rkp1Mw5E89Jp6dzJFYiMrm

* lance: prove concurrent commits are kept, and preselect the only format on offer

Two more from review.

The commit test asserted that exactly one writer wins the conditional PUT,
which is the mechanism, not the claim. The claim is that nothing is lost:
the losers see the conflict, rebase and commit again. So there is now a
test that has eight writers append to one dataset at once and counts the
rows afterwards - all eight batches survive. That is also the sequence
managed versioning could not finish, since its store refuses the second
commit outright.

And when Iceberg's endpoint is not running, the format picker offered two
options with neither selected, so Create Bucket submitted no format at
all, fell back to ICEBERG, and was refused by the guard added last round.
Lance is preselected when it is the only format this cluster serves.

Claude-Session: https://claude.ai/code/session_01Rkp1Mw5E89Jp6dzJFYiMrm

* Clamp the remaining worker settings, and bootstrap buckets in a served format

Compaction and index optimization read their thresholds and cast straight
to usize and u64, so a negative arrives as an enormous number and turns
the threshold into "never": compaction and reindexing both go quiet with
nothing to say. The cleanup job was fixed last round; these are the same
bug. Clamped to the values that stay meaningful rather than to what the
form offers - zero uncovered rows is a real setting, meaning reindex as
soon as anything is not covered, so the floor there is zero and not the
form's thousand.

mini pre-creates the buckets named by -tableBucket, and did so without a
format, which now means Iceberg. Started with the Iceberg endpoint off
and the Lance one on, that left buckets nothing could reach and which
refused every Lance table. It takes the format from the endpoint that is
actually running, and creates nothing when neither is.

Claude-Session: https://claude.ai/code/session_01Rkp1Mw5E89Jp6dzJFYiMrm

* s3: allow-unordered is a listing parameter, not an unimplemented subresource

The guard that stops a bucket GET with an unknown subresource from being
answered with a listing does not know about allow-unordered, so it answers
501 NotImplemented - to a parameter the listing handlers already read and
already validate against delimiter.

This is why test_bucket_list_unordered and test_bucket_listv2_unordered
fail in the Ceph s3-tests suite. They fail on master too; this is not a
Lance change and can be taken on its own.

Claude-Session: https://claude.ai/code/session_01Rkp1Mw5E89Jp6dzJFYiMrm
2026-08-19 22:59:56 -07:00
68a23a4b3c filer: stop remote.unmount from deleting the remote objects (#10811)
* filer: add filer.options.disable_remote_storage_deletion for cache-only deletes

Deleting a filer entry under a remote.mount path also deletes the backing
object from the remote store (maybeDeleteFromRemote). Deployments that use a
remote mount as a read-through cache in front of an authoritative,
externally-managed object store cannot allow this: the filer typically holds
read-only credentials, so the remote delete fails and the entire delete
errors out; and even where it would succeed, it destroys data the filer does
not own.

Add filer.options.disable_remote_storage_deletion (default false, so existing
behaviour is unchanged). When enabled, maybeDeleteFromRemote is skipped for
both single-entry and recursive folder deletes: local metadata and cached
chunks are still removed, but the remote object is left intact.

* filer: assert local removal in cache-only recursive delete test

The recursive cache-only delete test only checked that no remote delete
happened; it did not verify the local child and directory entries were
removed. Add FindEntry assertions so a regression that skips local
recursive deletion is caught.

* filer: reload the remote mount mapping when /etc/remote changes

The mapping was only read at startup, so remote.unmount left the mount live
in the filer: the purge that follows the mapping delete then went to the
remote store and wiped every object under the mount.

Rebuild the rules trie and the conf map from scratch on each load, since
ptrie cannot drop a key, and swap them under a lock.

* filer: drop the filer-wide remote deletion switch

With the mapping reloaded on unmount, the purge no longer reaches the remote
store, so there is nothing left for the switch to protect against.

---------

Co-authored-by: Chris Lu <chris.lu@gmail.com>
2026-08-18 15:38:02 -07:00
Chris LuandGitHub 602746f51d test: EC lifecycle chaos harness, with four fixes it found (#10763)
* ec: let the encode's balance see a migrating volume's shards across disk-type buckets

Shard generation writes beside the source .dat, so a cross-tier encode
(source on hdd, -diskType=ssd) leaves the fresh shards in the source
disk-type bucket. The encode's internal balance ingested only the target
bucket, saw no shards, and planned no moves; the spread guard then
correctly aborted the encode (and before that guard existed, the shards
silently stayed clumped on the generation host in the wrong tier).

EcBalance now takes the encode batch as migratingVolumeIds and ingests
those volumes' shards from every bucket, while everything else keeps the
bucket filter so a plain ec.balance never drags deliberately tiered
shards onto another disk type. The in-memory model delete also becomes
bucket-agnostic: a node holds a given shard in exactly one bucket, and a
bucket-scoped delete missed cross-bucket moves in the dry-run model.

* volume: decode reads shard 0 from its resolved path, not the EC volume's base dir

On a multi-disk server a volume's shards can sit on several disks; the
store registers each shard with its own path and CollectEcShards resolves
them, but FindDatFileSize derived the .ec00 path from the EcVolume's base
directory. When shard 0 lived on a sibling disk, VolumeEcShardsToVolume
failed with 'open ...ec00: no such file or directory' and ec.decode
aborted.

* ec: decode re-copies shards the topology claims but the target does not hold

An interrupted earlier decode or balance can leave the master believing
the decode target holds a shard whose file never landed: the mount
registered but the partial copy was cleaned, or the file was swept. The
collect step took the topology's word for it, excluded the shard from
the copy set, and the decode failed with 'missing shard'. Probe the
target's live inventory (VolumeEcShardsInfo) and treat anything it
cannot serve as still-to-copy.

* ec: decode discovers shards across disk-type buckets

Shards sit wherever encode generation and balance left them: a
cross-tier encode leaves them in the source disk-type bucket, a partial
migration straddles buckets. ec.decode scoped its shard discovery to the
-diskType bucket and reported a decodable volume as having no shards at
all. Union across buckets, the way the encode's shard verification
already does.

* test: EC chaos lifecycle harness

Randomized, seeded sequences of the EC lifecycle against a live cluster
in the production-shaped layout: multiple data disks per server, a
separate -dir.idx directory so .ecx/.ecj sidecars are shared across
disks, and a tagged ssd tier. Operations cover encode (hdd and ssd
targets), balance, shard damage plus rebuild, decode, re-encode,
deletes, scrub, tier moves, crash-restarts, sidecar fault injections
(a data-dir .vif pushed into the shared idx dir; a stale-generation
shard planted beside a newer encode), and interruptions: a real weed
shell subprocess killed mid-encode, mid-decode, and mid-balance, with
the recovery re-run required to converge.

One invariant holds after every step: every stored byte reads back
identical and every deleted needle stays deleted. EC_CHAOS_SEED and
EC_CHAOS_STEPS make runs reproducible and scalable.

A known gap is tolerated and logged rather than fixed here: a shard
mounted on two disks of one node (orphan adoption after an interrupted
copy) is invisible to ec.balance's dedup and unaddressable by
ec.shard.unmount's shard@address form, so no cleanup path exists yet.

* test: fail payload-corruption checks on the test goroutine

t.Fatalf inside require.Eventually's condition runs on the poller's
goroutine, where Goexit kills only that goroutine and the corruption
message can be lost behind a generic timeout. Record the mismatch, end
the polling, and fail on the test goroutine. Also assert the full shard
count in the cross-bucket decode-discovery test.
2026-08-14 17:26:54 -07:00
Chris LuandGitHub 944d967502 refactor: extract EC orchestration into a shared weed/ec package (#10760)
* shell: move ErrorWaitGroup to weed/util

* shell: remove unused CandidateEcNode and EcRack types

* ec: extract EC orchestration logic from weed/shell into weed/ec

Move the EC node/topology model, balance engine, encode pipeline, decode
pipeline, and rebuild engine into a new weed/ec package so shell commands
and maintenance workers can share the logic. Shell commands keep flag
parsing and delegate through a small ec.Env (dial option, topology fetch,
volume locations, lock check). Tests move along with the code.

* shell: remove unused proportional-rebalance type stubs

* ec: move scrub, replication check, and shard unmount engines into weed/ec

* worker: share the EC generation-aware shard counter from weed/ec

* ec: gofmt

* shell: drop EC aliases with no remaining callers

* ec: guard a missing topology hook and nil disk entries in topology helpers

* ec: drop trailing newlines from decode error strings

* ec: re-check the shell lock before applying shard unmounts

* shell: trim -node entries in ec.scrub
2026-08-14 13:54:12 -07:00
9386a25a4a feat(shell): parallelize volume balance moves (#10737)
* chore: volume.balance parallelization

* chore: volume.balance add ioBytePerSecond

---------

Co-authored-by: Konstantin Lebedev <whitefox@mayflower.work>
2026-08-13 19:11:38 -07:00
Chris LuandGitHub 4f50c5b0d4 feat: throughput limits for replicate, EC shard, and worker-driven moves (#10749)
* feat: throughput limits for replicate, EC shard, and worker-driven moves

VolumeCopy was the only rate-limitable transfer; EC shard copies,
replica creation, and worker-driven moves all ran at whatever the
receiving server's maintenance rate allowed, with no per-operation
control.

- proto: VolumeEcShardsCopyRequest and the balance / ec_balance task
  params and configs gain io_byte_per_second; 0 keeps today's behavior
  (the volume server's own maintenance rate governs).
- volume server: VolumeEcShardsCopy throttles with one WriteThrottler
  per request, shared across the shard, .ecx, .ecj, .vif, and .ecsum
  copies so the limit caps the transfer as a whole - the same shape as
  VolumeCopy.
- volume_move: ReplicateVolume accepts the limit; EcMoveOptions carries
  it through MoveEcShards/CopyAndMountEcShards into the copy request,
  with fake-client tests asserting propagation.
- shell: ec.balance gains -ioBytePerSecond; volume.tier.move's
  replication top-up honors the command's existing -ioBytePerSecond
  instead of running unthrottled.
- worker: balance and ec_balance configs gain io_byte_per_second
  (surfaced in the admin config schema), carried through detection and
  plugin job parameters into task params and handed to the shared
  mover; batch balance jobs inherit the limit from their detection
  results.

The limit is per copy stream, so maxParallelization multiplies the
aggregate ceiling.

* worker plugins: expose io_byte_per_second in the plugin config and derive it

The plugin-driven detection path derives its task Config from the
plugin configuration values, and both balance and ec_balance left
IoBytePerSecond at zero there - a configured limit silently reverted
to the server maintenance rate. Both derive functions now read the
field (clamped at zero), and the plugin descriptors expose it with
defaults so the configuration form carries it.
2026-08-13 13:22:58 -07:00
Chris LuandGitHub 8714f42abf erasure_coding: share the EC shard teardown primitive (#10740)
The unmount+full-teardown of EC shards was duplicated: the plugin-worker EC
task had unmountAndDeleteEcShards and the shell had unmountAndDeleteEcShardsQuiet,
byte-identical apart from a fence parameter and a sentinel error. That
duplication is how the teardown fence semantics drifted between the two paths.

Distribute, mount and verify already live in weed/storage/erasure_coding and are
shared by both callers; move the teardown there too, as UnmountAndDeleteEcShards
plus the shared ErrFullTeardownNotAcked sentinel. Both paths now call the one
function, so the fence semantics cannot diverge again. The shell keeps a thin
type-converting wrapper and aliases the sentinel; behavior is unchanged.
2026-08-13 10:37:25 -07:00
Chris LuandGitHub fa48ce20fc shell: roll back a failed ec.encode instead of leaving readonly volumes and orphan shards (#10741)
* shell: roll back a failed ec.encode instead of leaving readonly volumes and orphan shards

ec.encode marks the source volumes readonly and generates EC shards before it
verifies the shards and deletes the originals. If any step in between failed,
the command just returned the error: the volumes were left readonly and the
partially-produced EC shards survived as orphans, cleaned up only by the next
ec.encode run (via clearPreexistingEcShards) if the operator retried.

Add a deferred rollback that runs when the batch fails before the originals are
deleted: it tears down the EC shards produced this run and restores the sources
to writable, reusing the existing clearPreexistingEcShards and
markVolumeReplicaWritable helpers. Once the shards are verified recoverable the
batch is committed to the EC copy and does not roll back. Both rollback steps
are idempotent, so a failure before the volumes were marked readonly is safe.

* shell: re-read volume locations when restoring writable in ec.encode rollback

Address review: rollbackFailedEcEncode restored writable using the location
snapshot taken before doEcEncode, but doEcEncode re-reads locations and marks
every replica of that later snapshot readonly. A replica added or moved in
between would be left readonly. Re-read locations in the rollback and fall back
to the pre-encode snapshot only if the re-read fails.
2026-08-13 10:25:30 -07:00
Chris LuandGitHub 0799084e98 refactor: share volume and EC shard move logic between shell and workers (#10727)
* operation: add shared volume_move package for volume and EC shard moves

The shell commands (volume.move, volume.balance, ec.balance, tier moves)
and the maintenance workers (balance, ec_balance) each carried their own
copy of the move RPC sequences, and the copies had drifted: the worker
verified the target before deleting the source but dropped the disk
type and IO throttle; the shell passed those but deleted the source
unverified.

volume_move.Mover carries the merged sequences, keeping the stricter
behavior from each side:

- LiveMoveVolume: check-then-hard-freeze the source (VolumeStatus's
  IsReadOnly also covers low-disk and readonly-but-can-delete states,
  which still accept needle deletes), copy with disk type and IO
  throttle, tail, verify the target is not behind the source before the
  destructive source delete (a target that is ahead holds writes it
  accepted during the tail and the move commits to keep them), and
  restore the source's writability when a failure precedes the delete
  and this move did the freezing. Aborts clean up the incomplete target
  copy; a failed cleanup or an ambiguous source delete keeps the source
  readonly (ErrSourceKeptReadonly) so callers do not thaw a source next
  to a possibly-authoritative copy. With a readonly source, an existing
  or unknown-state target refuses the move outright: no client-side
  observation can prove such a copy is a stale remnant rather than the
  authoritative copy of an unfinished move.
- MoveEcShards: copy with the .ecx/.ecj/.vif/.ecsum sidecars, mount,
  verify the target registered every shard before unmount+delete on the
  source, and reject same-server moves (the EC delete is server-wide).

Server identity is the grpc endpoint (SameServer), so node:8080 and
node:8080.18080 compare equal while test servers sharing a degenerate
HTTP address stay distinct; addresses are validated non-fatally before
dialing and before being embedded in copy/tail requests, since both the
client dialer and the receiving server normalize them through a parser
that aborts the process on a malformed port. The Rust volume server's
codes.NotFound counts as a definitively absent probe answer alongside
the Go server's plain-error code Unknown.

All RPCs go through an injectable ClientFunc, so the sequences are unit
tested against a fake volume server client: RPC order, request fields,
and that verification failures keep the source intact.

* shell, worker: delegate volume and EC shard moves to operation/volume_move

LiveMoveVolume and the copy/tail/delete/mark-writable helpers become
thin wrappers over the shared mover, keeping their signatures; the EC
helpers keep their per-step output and delegate the RPCs. BalanceTask
and ECBalanceTask keep their parameter validation, progress reporting,
and guards (same-node cross-disk rejection, dedup keep-node
verification, shard ids range-checked before the uint8 narrowing) and
hand the RPC sequences to the mover. volume.tier.move skips its
thaw-on-failure when the mover deliberately kept the source readonly,
since reopening the replicas beside a possibly-authoritative target
copy would fork the volume.

The tail-failure tolerance moves inside the mover: a failed tail is
tolerated only when the volume was already readonly before the move
began, backstopped by a stability re-read across the idle window, so
volume.balance's -skipTailError-by-readonly heuristic and tier-move's
unconditional skip both become the same authoritative rule.

* volume_move: keep the source readonly when a failed copy leaves a target of unknown origin

A failed copy can leave a complete, mounted copy on the target (the
server finishes after the client loses the stream). The abort probed
the target only when its pre-copy state was known-absent; an unknown
prior state skipped both the probe and the cleanup and then reopened
the source - two writable replicas of one volume, diverging from the
next write on.

The abort now probes the target on every failed copy and restores the
source only when the target provably holds nothing. A copy whose
provenance cannot be proven (unknown prior state, a pre-existing
replica, or an unreachable target) is never deleted, and the source
stays readonly with ErrSourceKeptReadonly naming the recovery.

* test: teach the plugin worker harness the shared move sequence

The fake volume server lacked VolumeStatus, which the shared mover now
issues before freezing the source, and the batch execution test's
status-read accounting predates the pre-copy target probe and the
verification reads. Mirrors the harness the enterprise tree already
carries.
2026-08-12 12:29:40 -07:00
Chris LuandGitHub a7d5443125 ec: confirm a surviving copy before deleting a duplicate EC shard (#10719)
* ec: confirm a surviving copy before deleting a duplicate EC shard

The dedup phase of EC balancing removes a shard it believes exists elsewhere.
It copies nothing first, so the shard surviving on another node is the only
thing that makes the delete safe -- and it took the plan's word for that.

The plan is built from the master's topology, which can name a location that
holds nothing: such a server answers "CopyFile not found ec volume id N" when
something later tries to read the shard there. A shard listed on a phantom
location and on a real one looks duplicated, so dedup deletes one of them. When
it picks the real one the last copy is gone, and the job reports success -- the
loss only surfaces later, as a rebuild that cannot assemble enough shards.

The move phase already refuses to work on trust: it verifies the shard
registered on the destination before removing the source. Dedup now holds to
the same standard. The planner records which node it chose to keep, and both
executors -- the worker task and the shell's ec.balance -- confirm that node
really holds the shard before deleting. A keep node that cannot be queried is
unknown rather than confirmed, and blocks the delete.

Tests drive the destructive path against an in-process volume server that
tracks what is actually on disk separately from what the plan claims, which is
the distinction the bug turns on. Without the guard, two of them fail by
deleting the only copy and returning success.

* ec: check the collection and bound the wait when confirming a survivor

Two gaps in the dedup survivor check.

The inventory RPC is keyed by volume id alone, so a server holding the same
number for a different collection answers "yes, I have that shard" to a
question about this one. Accepting that deletes the last real copy on the
strength of an unrelated volume. The response already carries the collection,
so verify against it rather than widening the RPC.

The shell path also queried on a background context, so a keep node that
accepts the connection but never answers would hang the whole balance run
instead of reporting that the survivor could not be confirmed. Bound it.

The check moves into VerifyShardsOnServer next to the existing helper, shared
by both executors, so the two paths cannot drift.
2026-08-11 20:15:34 -07:00
Chris LuandGitHub 5b145fe646 shell: send read jwt when downloading chunks in fs.mergeVolumes and fs.distributeChunks (#10717)
* shell: fs.mergeVolumes sends read jwt when downloading chunks

* shell: fs.distributeChunks sends read jwt when downloading chunks
2026-08-11 11:57:53 -07:00
Chris LuandGitHub c6e1387f59 shell: multi-target fs.mergeVolumes and volume.mark -readonlyCanDelete (#10706)
* shell: fs.mergeVolumes distributes one volume across multiple -toVolumeId targets

* volume: volume.mark -readonlyCanDelete rejects writes but keeps accepting deletes

* seaweed-volume: mirror readonlyCanDelete volume state
2026-08-10 16:31:26 -07:00
Chris LuandGitHub 0b1f0cafee shell: keep the source readonly when the incomplete target copy cannot be deleted (#10705) 2026-08-10 12:56:45 -07:00
Chris LuandGitHub d4d8e097dd shell: volume.move cleans up when aborted after the copy phase (#10704)
* shell: volume.move restores source writability when aborted after the copy phase

* shell: volume.move removes the incomplete target copy when aborted before the source delete

* shell: give each abort cleanup RPC its own timeout
2026-08-10 12:35:40 -07:00
Chris LuandGitHub 89e6f9a16e shell: volume.delete and volume.move accept a -timeout (#10701)
* shell: volume.delete accepts a -timeout

* shell: volume.move accepts a -timeout
2026-08-10 11:10:29 -07:00
Chris LuandGitHub 52d74df4d1 clients: stream the volume listings that ask for everything (#10679)
* master: stream volume listings

A listing of 800k volumes is 36MB on the wire but 305MB as messages, and the
master built all of it, then held it while grpc encoded it. Two of those at
once is most of a small master's heap, and the maintenance scanner asks every
30 minutes.

The topology goes out first, listing nothing, then its volumes in batches, so
the master holds a batch rather than a cluster: 341MB of live heap for one
listing becomes 4.4MB. It allocates much the same either way -- what changes is
how much of it has to be live at once, which is what sets the heap ceiling.

Batches are built under their disk's lock and sent outside it, so a slow reader
stalls the stream rather than the topology. They therefore do not share one
instant, which a single listing did not either: it takes each disk's lock in
turn, so a volume moving during either can be seen twice or not at all.

The client helper hides which kind of master answered: one too old for the
stream is asked the old way and its reply cut into the same batches. Either way
the topology handed over lists no volumes, so a caller cannot come to depend on
finding them there.

* admin: stream the listing the maintenance scan reads

It asks for every volume in the cluster every 30 minutes. Reassembling it
client-side keeps the scan identical -- ActiveTopology splits disks by the
disk ids on the volumes, so it needs them in the topology -- while the master
no longer builds the whole reply to send it.

* topology: report a disk id that does not depend on map order

A topology disk that fronts several physical disks took its reported id from
whichever volume the map yielded first, so two listings of an unchanged disk
could disagree. Take the smallest instead.

* topology: test that a streamed listing rebuilds to the whole one

The callers that stream now rebuild the listing from a topology sent without
volumes plus the batches after it, so that has to come out the same as being
sent it whole, at every batch size and under a filter.

* clients: stream the volume listings that ask for everything

The dashboard's list and export pages, the collection and ec shard pages, the
topology view, the worker metrics and two shell commands each asked the master
to build all 800k volumes into one reply. They read the same listing as before,
rebuilt on their side, so the master no longer holds it.

The three that already ask for one volume or one collection stay as they are:
their replies are small, and streaming one costs a round trip to say so.
2026-08-10 09:51:08 -07:00
Chris LuandGitHub f09e8345c6 storage: stop keeping the remote storage key on the master (#10672)
A master decides nothing from it. Every caller that read it was asking whether
a volume is remote, which the backend name answers, and the value itself is
reported on demand by the server holding the volume, through the volume info in
ReadVolumeFileStatus.

It is also the one string here that cannot be shared: unique per volume, so
unlike the collection and backend names it carries its own characters for every
volume a master tracks.

VolumeInfo goes from 136 bytes to 120. 800k volumes registered from a heartbeat
that has been over the wire go from 214 to 163 B/volume when tiered.

The volume server's own status page keeps showing the key, now read from the
volume it holds rather than relayed through a master, which is also where the
other volume server implementation reads it.

The heartbeat digest drops it on the same grounds: a change to something the
master does not hold cannot make its copy stale. Both implementations and their
shared vectors move together, and the field-coverage test now names what is
deliberately not retained rather than being loosened.
2026-08-09 12:43:31 -07:00
Chris LuandGitHub e5dc98dcb2 ec.balance: add a -volumeIds filter (#10667)
* ec.balance: add a -volumeIds filter

Collection scope is often too broad for maintenance. -volumeIds narrows the
plan to the given ec volume ids by leaving every other volume out of the
topology handed to the planner, so no phase, dedup included, can plan against
them. Ids with no ec shard in the selected collection, dataCenter and disk type
are rejected rather than silently skipped.

* ec.encode: key the orphan sweep without narrowing the volume id

int is 32-bit on 32-bit builds, so int(vid) wraps for volume ids above
MaxInt32. Format the id as the uint32 it is.
2026-08-09 09:37:49 -07:00
Chris LuandGitHub 08f0ba5564 topology: clamp the deleted-vs-total subtractions in volume stats (#10633)
VolumeLocationList.Stats subtracts the deleted figures from the totals to
report live size and needle count. Both deleted figures are maintained as
counters independent of the totals they come off, so either can transiently
exceed its total, and neither subtraction was clamped.

Unclamped, the size wraps to ~16 EB. The count is signed so it merely goes
negative, but VolumeLayout.Stats converts it with uint64(fileCount), which
turns it into ~1.8e19 just the same. Either one swamps the cluster totals
behind /dir/status, /vol/status and Topology.CollectionVolumeStats.

commandFsMergeVolumes.getVolumeSize had the same unclamped subtraction, where
a wrapped size reads as a volume far too large to join any merge plan.

Clamped to zero, matching the guards already in CollectionInfo.LogicalSize
and the admin server's logical-size accumulator.
2026-08-07 19:49:44 -07:00
Chris LuandGitHub 44e546a933 shell: pick tier.move replica targets with the shared placement picker (#10582)
The command chose destinations by walking its location list in order, so it
neither preferred a node near the source nor spread a burst of copies. Replica
placement and "this node already holds the volume" move into the Accept
predicate; the ranking and the per-pick reservation come from placement.

Claude-Session: https://claude.ai/code/session_01Ks16jnt4S7gdDk8cheQ3xu
2026-08-05 00:27:14 -07:00
Chris LuandGitHub aceab0802e placement: move the target picker out of the shell package (#10580)
weed/shell is the CLI command layer: every file there registers a command in
init(). Importing it for placement drags that whole surface, and its
registration side effects, into callers that run no CLI.

The picker now depends only on master_pb and storage/types, with a node type
of its own -- smaller than the balancer's Node, which also carries the volumes
it holds, and placement never needs those.

Claude-Session: https://claude.ai/code/session_01Ks16jnt4S7gdDk8cheQ3xu
2026-08-05 00:12:04 -07:00
Chris LuandGitHub 4b12af036c shell: add a reusable target picker for volume moves (#10579)
* shell: add a reusable target picker for volume moves

Picks the emptiest node near the source: locality first (same rack, then same
data center), emptiest within a tier. Free bytes decide where the cluster
reports them, free slots break the tie.

The pick is spent in the passed topology, so planning several moves from one
snapshot spreads them instead of stacking every one on whichever node started
emptiest.

Claude-Session: https://claude.ai/code/session_01Ks16jnt4S7gdDk8cheQ3xu

* shell: order targets on one metric, and reserve the real volume size

Comparing some pairs on free bytes and others on free slots is intransitive, so
the winner depended on sort order. One node too old to report filesystem bytes
now puts every candidate on slots.

Reserving the tier average let a batch of large volumes overcommit a
destination; callers pass what the move actually consumes.

Claude-Session: https://claude.ai/code/session_01Ks16jnt4S7gdDk8cheQ3xu
2026-08-05 00:07:39 -07:00
Chris LuandGitHub 312cfe5ae1 Fix volume.merge corrupting every needle it copies (#10565)
* Give volume.merge the needle size the target actually indexes by

needleBlobFromNeedle returned the size Append reports, which is
Size(n.DataSize) - payload bytes only. The .dat header, the needle map and
WriteNeedleBlobRequest.Size all use n.Size, which additionally covers the
flags, name, mime and lastModified fields.

Every needle volume.merge copied therefore landed with a too-small size. The
target indexed it at that length, so every later read failed the header check
in ReadBytes with a size mismatch, and on v3 the fresh AppendAtNs stamp landed
NeedleHeaderSize+DataSize+NeedleChecksumSize into the blob - exactly on the
flags byte - overwriting flags, name size, mime size and the first mime bytes
with the top of a timestamp. Needles came back with flags 0x18, no name, no
mime and a phantom TTL parsed from two arbitrary timestamp bytes; the ones
that decoded as expired 404 and vacuum would drop them. Since merge rebuilds
every replica from the merged copy, no clean replica survives.

Return n.Size, which Append fills in as it serializes, matching what the
normal write path stores via nm.Put.

* Reject needle blobs whose size disagrees with their own header

WriteNeedleBlob trusts the caller's size for two destructive things: it is
what goes into the needle map, and it is where the v3 AppendAtNs stamp is
written inside the caller's buffer. A caller passing the payload-only DataSize
convention corrupts both, and nothing surfaces until the needle is read back -
by which point every replica may already have been rebuilt from it.

Parse the blob's own header and refuse the write when the two disagree.
Mirrored in the Rust volume server.
2026-08-04 16:58:25 -07:00
Chris LuandGitHub b452a5e41b s3: honor a bucket owner recorded as an identity (#10567)
* s3: resolve a bucket owner recorded as an identity

The admin UI and weed shell record a bucket's owner as an identity name in
s3-identity-id and never write the account id the S3 API stores alongside it,
so such a bucket looked unowned: its ACL owner fell back to the default admin
account, and under the default BucketOwnerEnforced ownership every object
uploaded to it was stamped with that account instead of the bucket owner.

Resolve the identity to its account when no account id is recorded, in the one
place both the bucket metadata and the bucket config derive the owner from.

* s3: drop the recorded account when the bucket owner is reassigned

Changing the owner of a bucket created through the S3 API left its old account
id behind, and that outranks the identity when the owner is resolved, so the
new owner never took effect for object ownership or the bucket ACL.
2026-08-04 16:00:04 -07:00
Chris LuandGitHub 3514925581 filer: let a nested path rule turn worm off (#10503)
* filer: let a nested path rule turn worm off

mergePathConf ORs the booleans, so worm set on a bucket could never be
lifted on a directory under it, while every string field is overridden by
the more specific rule. Make worm tri-state instead: unset inherits, set
wins. readOnly, fsync and disableChunkDeletion keep the OR, so a nested
rule still cannot escape a lock the bucket set.

Configurations written before this carry an explicit "worm": false on
every rule, because they are marshalled with EmitUnpopulated. Reading
those back as an override would quietly drop worm from nested paths, so
filer.conf is now stamped with a version and the flag is dropped to unset
when the version predates it.

* filer: copy the worm value out of the matched rule

mergePathConf aliased the pointer into the merged result, so a caller that
wrote through it would reach into the stored rule.
2026-07-31 00:34:22 -07:00
Chris LuandGitHub c2183566b6 ec.encode: name the shard ids an aborted deletion found (#10486)
Counting by node lost the per-node ShardsInfo, and with it the shard ids the
old summary printed -- the message an operator gets when the pre-delete check
refuses now says only how many shards each node holds.

That is the wrong half. A set holding shards 0-9 and one holding 4-13 are
both "10 shards", and only the ids say whether what survived can rebuild the
volume, or which node to go looking at. Keep the count and list the ids
beside it.
2026-07-29 14:21:55 -07:00
Chris LuandGitHub c4798979d8 ec.encode: count shards wherever they landed before deleting the source (#10483)
generateEcShards writes shards beside the source volume, so encoding a
volume that lives on a non-default medium puts them on that medium while
-diskType still says hdd. The pre-delete check counted only the -diskType
bucket, so it saw a complete set as zero shards, called it unrecoverable
and aborted -- leaving the volume as both a .dat and a full shard set,
which every later reader then disagrees about.

Count by node across disks, as waitForEcShardsToRegister in the same file
already does. The spread check is unaffected: it locates shards through
collectEcShardBitsByNode and only uses diskType to find free slots.
2026-07-29 13:51:46 -07:00
Chris LuandGitHub 5536d88fbb azure: let the blob endpoint be configured (#10460)
* azure: let the blob endpoint be configured

The service url was always derived as <account>.blob.core.windows.net,
which leaves out Azure Government, Azure China, and private endpoints.
Name the blob service url instead and those accounts become reachable.
The url has to be https, since the account key or the bearer token would
otherwise travel in the clear.

* azure: reject an endpoint that carries no hostname

A url like https://:443/ has a host of ":443", so the emptiness check on
Host let it through and the request only failed once it reached Azure.
The hostname is what has to be there.
2026-07-27 16:41:13 -07:00
Chris LuandGitHub 3ae4e9c563 azure: authenticate with Entra ID instead of a storage account key (#10456)
* azure: authenticate the blob sink with Entra ID

Shared account keys have to be distributed and rotated everywhere a sink
runs. Leaving account_key empty now falls back to the identity chain, so a
workload identity or managed identity carries the authorization instead.

* azure: authenticate remote storage with Entra ID

The remote storage client demanded an account key and refused to start
without one. Fall back to the identity chain when it is absent, and let
azure.client_id pin a user-assigned identity.

* azure: reject a malformed storage account name

The account name is interpolated into the service URL, so a name carrying
a "/", "?" or "@" moves the authority elsewhere and an authenticated
request follows it. Hold callers to Azure's own naming rule instead.

* azure: keep a leftover environment key off the identity path

A configured client id asks for Entra ID, but AZURE_STORAGE_ACCESS_KEY
still filled in the account key behind it. An old mounted secret would go
on authenticating until it rotated, and the failure then blamed the key.

* azure: say what the identity path reads from the environment

A pinned client id alone is not enough for workload identity: the tenant
and the projected token come from the environment, and missing them only
surfaces later, when a token is first requested.
2026-07-27 14:12:14 -07:00
Chris LuandGitHub 6e6255b58e shell: accept a context in the volume move helpers (#10415)
LiveMoveVolume and the copy, tail, delete, mark, replicate, and
configure helpers around it issued every RPC on context.Background(), so
a caller had no way to bound or abort a move once it started. They now
take a context, which the exported LiveMoveVolume in particular needs:
callers outside the shell drive long moves and want to stop them.

The deferred restore in copyVolume runs on a detached, bounded context
rather than the caller's. Marking the source writable again is cleanup,
and cancelling the copy must not skip it and leave the volume readonly —
the same guard balance_task.go already applies for the same reason.

Shell commands pass context.Background(): their Do signature carries no
context, and changing it would touch every command in the package.

Claude-Session: https://claude.ai/code/session_01Ks16jnt4S7gdDk8cheQ3xu
2026-07-24 01:29:41 -07:00
Chris LuandGitHub 47b491b53c mount: version open file handles by filer log position (#10403)
* filer: stamp a log position on lookup and remote-cache responses

Metadata events are logged after their store write and stamped with the
filer clock. Reading that clock before serving an entry therefore gives
a timestamp with a causal guarantee: every event at or below it is
reflected in the returned entry. Clients caching filer state can use it
as the entry's version to order the response against subscription
events, including events committed before the call but delivered after
it.

* mount: version open file handles by filer log position

A subscription event refreshing an open handle did a second lookup; a
transient failure left the handle pinned to its old entry with no
retry, since the subscription cursor had already advanced. The deeper
problem is ordering: the handle is a cache written by three unordered
channels — the async invalidation worker, local mutation acks, and
open-time lookups — and overwriting cached state safely requires
knowing which write is newer.

The filer log timestamp is that order, and it now travels with every
value instead of being derived out of band. Events carry it natively;
lookup and remote-cache responses carry the log position stamped before
the serving read; mutation acks carry it in their returned event; and
the local store pairs each read with a version cursor advanced under
the same lock as the store write. Each handle records the version its
entry reflects, and one rule replaces the per-site reasoning: state at
or below the handle's version is old news and must not be installed.

The invalidation itself applies the event's own entry — no lookup, so
no transient-failure window — except under a cached parent, where the
store entry is the ordered merge of the event and anything applied
since, and its version outranks the event's. An uncached parent
receives no store writes, so a hit there would be a stale leftover
masking the event. A vacated path (delete, rename away) keeps the last
entry so unlinked-but-open reads still work. Directory builds version
the completed directory at the listing snapshot and re-invalidate
buffered events at that version, since their mid-build refresh ran
against an incomplete store.

The tests replay every race this replaces machinery for: rollback of a
newer local flush (queued, cached, and read-through), stale leftovers
under uncached parents, the build window including abort, handles
opened after an event was queued, events landing mid-lookup, and
undelivered events at remote-cache time across a filer failover.

* filer: serialize the log position fence with mutations, stamp mutation acks

The fence stamped before an unlocked entry read could precede state the
read returned: a mutation writes storage first and assigns its event
timestamp only at notify time, so a lookup racing that window handed
the mount an entry newer than its fence, and the event's later delivery
looked like fresh news — destroying dirty pages for a change the handle
already had. The mutation handlers already hold an exclusive per-path
lock across read, write, and notify; the lookup and remote-cache reads
now take it shared around the stamp and the read, making the fence
exact: everything at or below it is in the entry, nothing above it is.

A no-change update returns success without an event, leaving the mount
nothing to fence with even though the response confirms current state.
Create and update acks now carry a log position stamped under the same
lock, and the mount falls back to it whenever the ack has no event.

Also regenerate the VT marshalers, which the earlier generation missed:
without them a VT round-trip silently zeroed every log position.

* java: sync filer.proto

* mount: scope store versions to what they vouch for; atomic handle install

The store's version cursor claimed too much. Advanced by local mutation
acks and directory listing snapshots, it inflated the version of store
reads for unrelated paths whose events the subscription still owed, and
those events were then fenced out permanently. The cursor now tracks
subscription progress only — events arrive in log order, so everything
at or below it has been delivered for every path — and a completed
listing records its snapshot as a per-directory floor instead of a
global claim. Local acks never touch it: they version their own handle
directly. Buffered build events advance the cursor at delivery, since
their store write may never happen (abort) while their invalidation is
already queued; their read-through directory pairs no store read with
it, and rename fragments are applied first.

Concurrent first opens raced: a slower opener's older lookup could
overwrite the newer entry a faster opener had installed, while the
monotonic version kept the newer timestamp — an old entry fenced at a
new version, immune to every correcting event. Entry and version are
now installed as one decision under the handle map lock, and an install
that does not outrank the handle's version is dropped.

The remote-cache commit also escaped the fence: it wrote storage and
notified without the path lock, so a lookup's shared-locked fence and
read could land between the two and hand out the cached state
under-versioned. The commit now re-reads and writes under the exclusive
path lock, and backs off entirely when the entry changed during the
download — the concurrent writer supersedes the cached content.

* mount: floors gate store applies; installs respect handle users; renames join the fence

A directory floor certifies the listing state as of its snapshot, but a
delayed event at or below the floor was still applied to the store —
rolling the content back to pre-snapshot state while the floor kept
claiming the snapshot version, so the correcting events were fenced out
of every future read. Events are now gated against the affected
directory's floor, each half of a rename independently.

Fences are lower bounds: a listing or lookup can include a mutation
whose event has not been delivered yet, and that event later passes
every gate carrying state the handle already holds. Such a re-delivery
now advances the version without destroying dirty pages or reinstalling
the entry — invalidating local writes over a no-op was the real damage
in every remaining under-fence window, including the unlocked listing
snapshot, which no per-path lock can serialize.

The concurrent-open install moved from the map lock to the handle lock
every reader, writer, and invalidation synchronizes on, and rejects
what cannot improve the handle: dirty state (local writes would be
lost), unversioned lookup responses (they cannot outrank anything, and
two zero-version opens must not overwrite each other), and anything not
strictly newer. New handles are still fully initialized before the map
exposes them.

Renames committed metadata and emitted events with no path lock, so a
lookup could read the renamed state under a fence preceding its events.
Both rename handlers now hold the source and destination locks, ordered
by path, across commit and notification; descendants of a renamed
directory are not individually locked and rely on the no-op re-delivery
handling above.

* mount: per-entry store versions replace the cursor and directory floors

The store's aggregate versions — a global subscription cursor and
per-directory listing floors — were versions at coarser granularity
than the values they described, and every over-claiming bug in this
series traced to that gap: an aggregate vouching for state its source
never saw. Each store entry now carries the filer log position of the
write that produced it — the event that applied it, or the listing
snapshot that inserted it, recorded in the store's key-value space
under the same lock as the entry write. The store becomes what the
handle already is: a last-writer-wins register with one rule, install
only what outranks the current claim.

The cursor, the floors, their advancement rules, the pairing ordering
constraint, and the floor gating all collapse into that rule. Applies
are gated per entry, each half of a rename independently; an
unversioned local write clears the claim its content no longer proves;
version records lingering after a bulk folder wipe cannot fence a
recreate, since a claim only blocks while its entry exists. Listing
inserts are stamped at build completion, before the buffered replay so
newer replayed events override the stamp.

Filer side, the fence dance every versioned read must perform is now a
single choke point, fencedFindEntry, so a future read RPC gets the
lock-serialized stamp by construction rather than by convention.

* mount: judge no-op re-deliveries against an immutable base, not the live entry

The equal-state skip compared the incoming event to the live handle
entry, but local writes mutate the live entry — size, timestamps,
chunks — so a delayed event re-delivering the base the handle was
opened with no longer matched, and the installer destroyed the dirty
pages and rolled the entry back over nothing new. The handle now keeps
an immutable snapshot of the filer state it last installed or
acknowledged, refreshed at every install and mutation ack (flush acks
snapshot the request entry before the id mapping mutates it), and the
no-op judgment runs against that base: an event carrying the base
brings nothing, whatever the live entry has diverged to since.

* mount: tombstones for versioned deletes, absence floors, copy enrollment

Four gaps in the per-entry version protocol, all the same shape: a
versioned fact with nothing carrying its version.

A deletion is a fact about a path with no entry left to hold it —
clearing the record let a delayed older event resurrect the deleted
path, permanently, since the deletion's own redelivery is
dedup-suppressed. Versioned deletes now leave a tombstone record that
fences without an entry; renames tombstone their source the same way.
Plain records still only block while their entry exists, so records
lingering after a bulk folder wipe cannot fence a recreate.

A completed listing proves absences as well as presences: a name it
omitted was deleted as of the snapshot, and a delayed create below the
snapshot re-creates it. The snapshot is kept per directory strictly as
an absence fence, consulted only when a path has neither an entry nor
a version record — present entries carry their own versions and never
touch it, which is what separates this from the over-claiming floor it
replaces.

A rebuild against a pre-upgrade filer returns no snapshot; stamping
now clears the children's records in that case, so a reinserted entry
cannot reactivate the stale claim its previous incarnation left
behind and reject valid events below it.

Server-side copies installed the copied entry without enrolling in the
base protocol, so the copy's own event differed from the stale
pre-copy base and destroyed writes made to the destination after the
copy. The install now refreshes the base and takes its version from
the fenced readback.

* mount: deletion facts outlive the cache's knowledge of the entry

A versioned delete of a path the store held no entry for recorded
nothing, so a delayed older event recreated the path — permanently,
with the deletion's redelivery dedup-suppressed. The tombstone is now
written whenever a versioned event vacates a path: the deletion is a
fact about the path, not about what this cache happened to hold.

For an absent entry, the listing's absence floor now speaks whatever
older record remains: a tombstone at one position does not exhaust
what is known about the path when a newer snapshot has confirmed the
name still absent, and an event between the two was slipping past
both.

A committed copy whose readback failed installed a synthesized base
with local timestamps; the copy's real event legitimately differs from
it, and was read as foreign state — destroying writes made to the
destination after the copy. The handle now marks that its own event is
en route and adopts that event's state as the base without touching
the live entry or the dirty pages; the adoption is one-shot, so a
genuinely foreign event still invalidates.

* mount: authoritative acks cancel pending event adoption; tombstones scoped and pruned

The copy-event adoption flag could outlive its purpose: a flush after
the failed readback installs a newer base and advances the version, the
copy's own event is then version gated without consuming the flag, and
the next genuinely foreign event was silently adopted — base advanced,
live entry and dirty pages untouched — leaving the mount to later
overwrite that remote change. Every local acknowledgment now installs
its base through one helper that also cancels any pending adoption: the
ack supersedes the mutation the adoption was waiting for.

Tombstones were written for every versioned delete under the mount and
survived directory eviction by design, growing LevelDB with historical
deletions on delete-heavy mounts. They are now scoped to directories
whose cached state the fence actually protects — an uncached parent
never serves from the store nor applies the resurrecting insert — and a
completed listing prunes the direct-child tombstones its absence floor
supersedes, leaving only those above the snapshot. The store gains a
key-prefix visitor for the sweep.

* mount: acked saves install their value; trailer snapshots; direct-child prune range

A version must never advance without its value. saveEntry stamped any
open handle with the acknowledgment's version, but a handle opened
while the save was in flight holds the pre-mutation entry — stamping it
fenced out the events carrying the state it lacked, permanently, with
the local apply performing no invalidation and the redelivery
deduplicated. The acknowledged entry is now installed together with its
version, through the same guarded install the racing-open path uses:
under the handle lock, only when it outranks the handle, never over
dirty local writes.

Empty listings return no in-band snapshot — a snapshot-only response
would be read as an entry by older consumers — so directories that end
empty gained no absence floor and their tombstones were never pruned.
The filer now sends the snapshot in the stream trailer, which older
clients ignore, and the client reads it when no in-band snapshot
arrived. Empty directories get real floors, their tombstones prune,
and their buffered replays gain the snapshot filter instead of the
replay-all fallback.

Version records now encode the parent directory and name separated by
a NUL, making a directory's direct children one contiguous key range:
the tombstone prune scans exactly them under the cache lock, instead
of walking every descendant record — the whole store, for root.

* mount: fix dirty-page loss, uid/gid base, download race, copy adopt, leak; dedup

Correctness fixes from the versioned-invalidation review:

- A foreign delete/rename-away of a file held open with unflushed local
  writes destroyed the dirty pages unconditionally. A process may keep
  writing to an unlinked-but-open file and those writes were already
  acknowledged; preserve the pages when the handle is dirty.
- downloadRemoteEntry stored the handle's base with filer-side uid/gid
  while every candidate it is later compared against is in local form,
  so under a non-identity UidGidMapper an unchanged re-delivery looked
  foreign and force-destroyed dirty pages. Map the base to local.
- downloadRemoteEntry wrote the entry/base/version triple under only the
  handle's shared lock, so two concurrent reads of the same remote-only
  file could tear it. Serialize the install with a dedicated mutex
  (invalidation is already excluded by the exclusive handle lock).
- A committed server-side copy whose readback failed adopted the FIRST
  event past the version gate as its base; a foreign write delivered
  first was silently swallowed. Adopt only an event whose content
  matches the synthesized base — the copy's own event — and install any
  other normally.
- The deferred-create path relied on AcquireFileHandle installing the
  passed entry on a pre-existing handle, which the version rework
  dropped. Restore that install in the compat wrapper; the versioned
  open path keeps its gated install.

Growth and hot-path cost:

- Per-entry version records and tombstones leaked when a directory was
  evicted or read-through without a rebuild. An uncached directory
  gates its own inserts, so its records fence nothing; clear a
  directory's child version records when it is wiped for eviction.
- FindEntry paid for the version KvGet on every lookup/getattr cache hit
  and threw it away. FindEntry now reads only the entry; the hot
  lookupEntry cache-hit path skips the version entirely.

Cleanups:

- Extract ackVersionTsNs over the shared response interface, replacing
  the metadata-event-else-log-ts snippet copy-pasted at four ack sites.
- Extract acquireRenamePathLocks, replacing the verbatim sorted
  two-path lock fence in both rename handlers.

* mount: no resurrection on foreign delete, version no-event acks, gate downloads, tighten copy adopt

Follow-ups to the review patches:

- Preserving dirty pages on a foreign delete let the next flush pass the
  isDeleted guard and CreateEntry, resurrecting the remotely-unlinked
  name. Mark the handle deleted in the vacate branch: the open fd can
  still read its buffered writes, but a flush no longer recreates the
  file.
- A no-event acknowledgment (log fence only) synthesized a metadata
  event with TsNs 0, so the cache stored the entry unversioned and an
  older subscriber event rolled it back. Stamp the synthesized event
  with the ack's log position at all four ack sites.
- downloadRemoteEntry serialized its install but did not check the
  version, so an older response arriving last overwrote the entry/base
  while the monotonic version kept the newer value, fencing corrections
  out. Install only when the response is at least as new as the handle.
- sameEntryContent compared only size and chunks, so a foreign chmod
  with unchanged content was adopted as the copy's own event. Compare
  everything except server-assigned timestamps, so a metadata-only
  foreign change installs instead.

* mount: trim comments to the non-obvious why

The versioning work accumulated multi-line comment blocks restating what
the code says. Keep the constraint a reader cannot derive — why a fence
is exact, why a version must not advance without its value, why an
uncached parent's records fence nothing — and drop the rest.

* mount: distinguish rename from delete, tighten the download and adopt gates

- A rename emits a nil old-path invalidation just like an unlink, so the
  vacate branch marked the handle deleted and later writes through the
  already-open descriptor were skipped instead of persisted. Carry the
  delete/rename distinction on the invalidation and mark only an actual
  delete.
- The remote-download install accepted an unversioned response
  regardless of the handle's version, so during a rolling upgrade a
  delayed response could install stale content under a newer version.
  Require the response to be at least as new, with one exception: a
  handle still lacking local chunks takes the content anyway — it cannot
  read without it — but does not claim the response's log position.
- Copy-event adoption returned without installing, so a foreign touch
  arriving before the copy's own event lost its timestamps. Content is
  unchanged either way, so the dirty pages stay valid; a clean handle now
  takes the entry, while a dirty one keeps its diverged version.

* mount: one directory floor instead of a record per child; agree on TTL

Review feedback:

- Build completion wrote one KV record per direct child inside the cache
  write lock, so a large directory stalled every other cache operation
  for O(children) store writes. The directory's listing snapshot already
  covers every child it saw; make that floor the version for any child
  without a record of its own, and a child earns a record only when a
  later event touches it. One map write per build replaces the per-child
  writes, with the same fencing.
- The presence probe read the store directly and so counted a
  TTL-expired entry as present, judging the path by a record describing
  content that has logically vanished. It now applies the same expiry
  the read path does, and an expired path falls back to its directory
  floor.
- Preserve ErrNotFound identity when the commit-time re-read finds the
  object deleted, so callers still surface a 404.
- Assert the rename-away source fence timestamp in the invalidation test.

Also record the tombstone ceiling: distinct deleted names in a cached
directory accumulate until it is rebuilt or evicted, which prunes
everything at or below the new snapshot.

* mount: pin the fence's clock domain instead of letting skew decide

A log-position fence is stamped by one filer's clock under that filer's
in-process lock, so comparing it to an event another filer logged is
comparing two unrelated clocks. The two error directions are not equally
costly: applying an event the fence already covered is a re-apply the
base-equality check absorbs, while skipping one it does not cover leaves
the handle holding exactly the state the event was meant to correct,
with the subscription cursor already past it — the unhealable staleness
this whole PR exists to remove.

So refuse to guess. Fences now carry the signature of the filer that
stamped them, and a handle records it alongside the position. An event
is only fenced out when the filer that logged it is the one that stamped
the fence — the logging filer appends its own signature, so its presence
identifies the clock domain. Events from any other filer are applied.
Positions taken from events keep comparing as before; the subscription
already delivers those in order.

The invalidation callback takes a struct now: it carries the path,
entry, position, delete/rename distinction, and signatures, and was
about to need a fifth positional parameter.

* mount: follow a foreign rename; key page invalidation on content, not equality

- A rename's old-path invalidation now carries the destination, and the
  handle follows the file there: an open fd tracks the inode, and leaving
  it on the old path made its next flush recreate that name instead of
  updating the renamed file.
- Dirty pages overlay content, so only a content change invalidates them.
  Keying that on exact equality meant any timestamp-only event destroyed
  them, which the copy-adoption marker existed to paper over — a foreign
  touch could consume the marker and leave the copy's own event to drop
  the post-copy writes. Comparing content instead makes the marker
  unnecessary, so it is gone: a metadata-only event keeps the overlay,
  and a dirty handle keeps its diverged entry unless foreign content
  supersedes it.
- A remote download response that is merely older is now refused even
  when the handle still lacks chunks; only an unversioned one is taken
  (and claims no position), since an older response's content predates
  what the handle reflects.
- A refused or unversioned download no longer publishes to the metadata
  cache, where a zero-position event would clear the entry's version and
  let an older subscriber event roll the cache back.

* mount: page invalidation keys on content alone; unversioned writes claim no position

- sameEntryContent compared everything but timestamps, so a foreign
  chmod, chown, or xattr change counted as a content change and
  destroyed the dirty-page overlay. It was strict only to serve the
  copy-adoption marker, which is gone; its one caller now asks the
  question it actually needs — did the bytes change — so metadata-only
  events leave the overlay alone.
- A rename over an existing file destroys that file, but its open handle
  was left live and still pointed at the name the renamed source now
  occupies, so its flush could overwrite it. MovePath already reports the
  displaced inode; mark that handle deleted.
- An acknowledgment was refused whenever its position was numerically
  lower, even when a different filer stamped the fence it lost to. Two
  known, differing signatures mean unrelated clocks, so the comparison no
  longer applies there; unknown signatures still compare as before.
- A local write with no log position behind it now records that
  explicitly instead of deleting its version record. Absence means the
  directory listing covers the path, which is why the snapshot floor
  applies; local content the listing never saw must not inherit it, or
  the events that would correct it are fenced out.

* mount: widen the existing lookup functions instead of forking WithVersion twins

The versioning work grew a parallel function for every accessor that
needed to return a log position — lookupEntryWithVersion beside
lookupEntry, maybeLoadEntryWithVersion beside maybeLoadEntry,
FindEntryWithVersion beside FindEntry, AcquireFileHandleWithVersion
beside AcquireFileHandle, advanceEntryVersion beside
advanceEntryVersionTsNs, plus a getPbEntryWithVersion wrapper and an
InsertListedEntriesForTest hook. Two names for one operation is two
places to keep in step, and the split let callers pick the one that
happened to compile.

Each pair is now the single original name carrying the position, with
callers that do not want it discarding it. filer_pb.GetEntry returns the
fence its response already carried rather than a mount-side wrapper
re-issuing the lookup, and InsertEntry takes the position its content
reflects rather than a test-only twin that inserted without one.

The one behavioural knot the merge exposed: AcquireFileHandle had been
installing the entry on a pre-existing handle only in its unversioned
form, which conflated 'the caller is authoritative' with 'the lookup had
no version'. Deferred create is the only caller that means the former,
so it now installs explicitly and the map function just acquires.
2026-07-23 17:44:02 -07:00
490379bff3 Add codespell support with configuration and typo fixes (#10393)
* Add GitHub Actions workflow for codespell on master

* Add rudimentary codespell config

* Tune codespell config: skip generated code, ignore camelCase, whitelist domain terms

Add camelCase/PascalCase regex to ignore common Go/Rust/JS identifiers
like allLocations, publishErr, ReadInside, FlushInterval. Also skip
templ-generated *_templ.go files, and whitelist a handful of
short/domain-specific words (visibles, fo, te, ser, bject, unparseable,
keep-alives, tread, anc, ue) that show up as false positives across the
tree.

Co-Authored-By: Claude Code 2.1.217 / Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* Fix ambiguous typos and protect false positives

Fixes typos that codespell reports with multiple candidate suggestions
(so `codespell -w` cannot auto-apply them), plus one inline pragma and
one config entry to protect legitimate identifiers.

Manual fixes (single correct answer chosen from context):
- pattens -> patterns (5x) in filer/upload/shell flag help strings
- finded  -> found (2x) in tarantool storage.lua comment
- spacify -> specify (2x) in helm chart values.yaml comment
- wether  -> whether in skiplist.go docstring
- simpe   -> simple in mq schema test case name

False-positive protection:
- Add `//codespell:ignore` next to `source GET's` (possessive of HTTP
  verb) in s3api_object_handlers_copy_stream.go
- Whitelist `auther` in .codespellrc — it's a local variable meaning
  "authenticator" in weed/security/tls.go, not a typo of "author".

Co-Authored-By: Claude Code 2.1.217 / Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* Extend codespell ignore list: .git-meta path and thirdparty groupId

Also skip `.git-meta` (scratch dir for commit messages that may contain
typo words verbatim) and whitelist `thirdparty` — it appears as the
literal Maven groupId `org.apache.hadoop.thirdparty` in hdfs3 poms
and cannot be renamed.

Co-Authored-By: Claude Code 2.1.217 / Claude Opus 4.7 (1M context) <noreply@anthropic.com>

* [DATALAD RUNCMD] Fix non-ambiguous typos with codespell -w

Auto-applied fixes to the 44 remaining single-suggestion typos across
docs, comments, log messages, tests, config, and one Java pom.

=== Do not change lines below ===
{
 "chain": [],
 "cmd": "uvx codespell -w",
 "exit": 0,
 "extra_inputs": [],
 "inputs": [],
 "outputs": [],
 "pwd": "."
}
^^^ Do not change lines above ^^^

* Revert breaking codespell fixes; whitelist unknwon and atleast

Two of the auto-applied `codespell -w` fixes were false positives that
would break the build/tests:

- go.mod: `github.com/unknwon/goconfig` is a real Go module path — the
  upstream author's GitHub handle is literally `unknwon`. Renaming to
  `unknown` would fail dependency resolution.
- test/benchmark/fuse_db/bin/{sqlite_verify.py,run_mysql.sh,run_sqlite.sh}:
  `atleast` is a literal CLI mode value (a string constant compared and
  passed as a positional argument). Rewriting to `at least` splits it
  into two arguments and breaks the mode check.

Reverted those files and whitelisted both words in .codespellrc so
future runs won't re-suggest the same broken fixes.

Co-Authored-By: Claude Code 2.1.217 / Claude Opus 4.7 (1M context) <noreply@anthropic.com>

---------

Co-authored-by: Claude Code 2.1.217 / Claude Opus 4.7 (1M context) <noreply@anthropic.com>
2026-07-22 14:38:06 -07:00
ca06589d64 volume.fix.replication: add a well-placed replica before deleting a misplaced one (#10364)
* volume.fix.replication: add a well-placed replica before deleting a misplaced one

A misplaced volume with no surplus replica (replica count == copy count) used to have its misplaced replica deleted first, and the replacement copied only on the next pass. That drops the volume below its intended durability, and permanently so when no destination can accept the replacement copy. Now such volumes get a well-placed replica first, and the misplaced one is trimmed as surplus on a later pass, following the same fulfill-before-delete principle as volume.tier.move (#8950).

The classification switch is extracted into classifyReplicaSet so the add-wins-over-trim priority is unit-testable.

Also stop the fix loop when an -apply pass makes no progress (nothing copied, nothing deleted); previously an unplaceable under-replicated volume made the loop spin forever, re-collecting the topology every 15 seconds. And propagate ewg.Wait() errors instead of swallowing them.

* volume.fix.replication: drop unused allLocations from deleteOneVolume

---------

Co-authored-by: Chris Lu <chris.lu@gmail.com>
2026-07-21 12:43:38 -07:00
Chris LuandGitHub 02df1cf428 shell: cluster.ps lists s3 servers (#10359)
* shell: cluster.ps lists s3 servers

* explicit returns in listClusterNodes helper
2026-07-18 13:56:47 -07:00
Chris LuandGitHub 564803becd shell: show who holds the cluster lock (#10353)
* regenerate master_grpc.pb.go with protoc-gen-go-grpc v1.6.2

The other generated pb files are already on v1.6.2; this one was stale.

* shell: keep unlock from racing the lease renewal

A renewal RPC in flight while ReleaseLock runs re-creates the lock on the
master after the release deletes it, and can blank the client name if the
renewal reads it mid-release. The stale-token release is then ignored, so
the lock stays held (sometimes anonymously) until it expires. Serialize
the renew and release RPCs, and set the client name before flipping
isLocked so the renewal never sends a partial acquisition.

* shell: restart lease renewal after a failed renewal

The renewal goroutine exits on error but never cleared its running flag,
so later locks in the same process were never renewed and silently
expired after ten seconds.

* shell: show who holds the cluster lock

A blocked lock command gave no hint that another client holds the lock
(the refusals only surfaced at -v=2), and cluster.status reported the
shell's own lock state as if it were the cluster's. Add a
GetAdminLockStatus RPC to the master so lock prints the holder before
blocking and cluster.status shows the actual cluster-wide holder. Both
degrade silently against masters without the RPC.

* shell: bound admin lock RPC attempts with timeouts

The lease, renew, release, and holder-status calls all ran without a
deadline, so an unresponsive master could hang the renewal goroutine,
an unlock (which now waits on the renewal mutex), or the shell prompt.
Give each attempt its own short context; the retry loops still resolve
a fresh leader on the next try.

* master: reject admin token release on non-leaders

A follower holds no lock state, so it answered a release with success
while the leader kept the lock until expiry. Refuse like LeaseAdminToken
does so the client can try the leader instead.

* shell: leave the lock release call unbounded

A release cut short by a deadline leaves the lock held on the master
until it expires, so a slow master would turn every unlock into a
ten-second ghost lock. Restore the single fire-and-forget attempt;
the timeouts stay on the lease and renew paths, where a stalled call
forfeits the lease anyway.

* shell: release only the token unlock started with

A RequestLock racing a slow release (the admin presence lock does this
on shutdown) could have its freshly acquired token sent in the release
request or zeroed by the trailing stores. Capture the token once under
the mutex and compare on clear so a concurrent acquisition survives an
in-flight unlock.
2026-07-17 12:30:42 -07:00
Chris LuandGitHub 25ab4c3cac preserve Content-Encoding for remote-mounted objects (#10340)
* remote storage: carry Content-Encoding into mounted entries

A RemoteEntry now records the remote object's Content-Encoding, and every
path that materializes a local entry from remote metadata (lazy fetch, lazy
listing, remote.mount, remote.meta.sync, remote.cache) stamps it into the
entry extended attributes, so HTTP and S3 HeadObject/GetObject return the
header. GCS and Azure populate it on listing and stat; S3 only exposes it
via HeadObject, so listings leave it empty.

* remote storage: set Content-Encoding when uploading to the remote

An entry carrying Content-Encoding in its extended attributes (a native S3
upload, or a value pulled from the remote) now keeps it when
filer.remote.sync or remote.copy.local writes the object to GCS, S3, or
Azure, instead of silently dropping it.

* gcs: read remote objects without decompressive transcoding

GCS transparently decompresses gzip-encoded objects on download, which
ignores range requests and returns byte counts that disagree with the
tracked RemoteSize. Request the stored bytes instead; chunked reads of
gzip-encoded objects then behave like any other object.

* remote storage: track Content-Encoding presence so removals propagate

A listing that does not report encodings (S3) leaves the field unset and
the local header untouched, while an authoritative report of no encoding
(GCS, Azure, any stat) now clears a previously stamped header instead of
leaving it stale. remote.cache also schedules a metadata update when only
the reported encoding changes.

* remote storage: propagate Content-Encoding on metadata-only updates

filer.remote.sync routes same-content changes through UpdateFileMetadata,
which only touched custom metadata (GCS, Azure) or tags (S3), so a
Content-Encoding change in the extended attributes never reached the
remote object's real header. GCS now patches contentEncoding alongside
the metadata, and Azure reissues the blob's HTTP headers with the new
value, carrying the others over since the call replaces the full set.
S3 stays tags-only: changing the header there means rewriting the
object, which the sync already does whenever content changes.

* remote.meta.sync: optional per-file stat for listing-omitted metadata

S3 listings carry no Content-Encoding, so entries synced from them never
learn it and the lazy-stat path never runs once an entry exists. With
-statFiles, each new or changed file whose listing left the encoding
unreported is stat-ed before reconciling, and the stat-derived value is
persisted so the next run only stats files that changed. Off by default:
it costs one remote request per file, and GCS and Azure listings already
carry the encoding.

* s3: apply metadata-only Content-Encoding changes with an in-place copy

Content-Encoding is S3 system metadata, so the tags-only metadata update
silently left the object's real header untouched. When the encoding
differs, reissue the object as a self-copy with replaced metadata,
carrying the content type and configured storage class like a fresh
write does. CopyObject caps at 5 GiB; beyond that the change is logged
and applies on the next content write.

* azure: skip the metadata call when user metadata is unchanged

An encoding-only change reissues the blob's HTTP headers; sending the
unchanged user metadata alongside it wastes a round trip and bumps the
blob's ETag once more than needed.

* s3: carry existing object metadata through the encoding copy

The replace directive drops everything not resent, and a mounted entry
usually has no local mime or user metadata, so the in-place copy wiped
the object's Content-Type, Cache-Control, user metadata, encryption
settings, and storage class. Read them back with a HeadObject first and
carry them over, overriding only what SeaweedFS manages: the encoding,
a locally set mime, and the configured storage class. S3 reports
Expires as a string while the copy input wants a time, so it is parsed
and skipped when malformed.
2026-07-15 19:20:00 -07:00
Chris LuandGitHub 10cdaf3818 Introduce weed shell command ec.check.replication. (#10328)
* Introduce weed shell command `ec.check.replication`.

This command performs a quick check of EC volume shard replication, reporting
volumes whose shards are over- or under-replicated. Each volume is checked
against its own data+parity ratio, obtained via
erasure_coding.EcShardsVolume{Data,Parity}Shards, so builds that derive the EC
ratio per volume report custom ratios correctly.

The name follows the shell's convention (cluster.check, volume.check.disk); the
closest normal-volume counterpart is volume.fix.replication.

* shell: ec.check.replication reports mixed under+over-replication in both lists
2026-07-13 17:18:42 -07:00
Chris LuandGitHub 013281b498 shell: volume.check.disk -resurrectMissingNeedles for never-vacuumed replicas (#10316)
An absent needle is normally indistinguishable from a vacuumed delete,
so check.disk skips it and replicas diverged by replication failures
cannot be reunited. But a replica with compaction revision 0 has never
been vacuumed: every delete it processed still holds its tombstone, so
a needle absent there is provably a missing write.

The new flag resurrects absent needles in exactly that case. The
receiving replica's live compaction revision is read after the index
snapshot and must be 0; vacuumed replicas keep the skip, now with the
revision in the message. The decision is passed per direction since
pass 2 runs pairs concurrently. Resurrected needles count toward
-nonRepairThreshold as before.
2026-07-12 00:14:16 -07:00
Chris LuandGitHub c1a1e3c1e3 shell: volume.tier.upload keeps volume replicas (#10314)
* volume: copying a remote-backed volume only needs space for the index

VolumeCopy sized its target-location check by the source .dat even when
that .dat lives in a cloud tier and only .idx/.vif land locally, so
re-replicating a tiered volume demanded the full remote size in free
disk. Require the index size instead.

* shell: volume.tier.upload keeps volume replicas

Tiering a replicated volume deleted every replica but the upload
source, leaving one server holding the only .idx and the only .vif
that knows the remote object key — losing that server orphaned the
volume even though its data sat intact in the cloud.

Replicate the uploaded .idx/.vif onto the other replica servers
instead (VolumeCopy skips the .dat for remote-backed volumes), so all
replicas serve reads from the same remote object and the volume keeps
its replica count. An already-tiered replica is preferred as the
upload source, so a rerun after a partial failure reuses the existing
remote object instead of uploading a second copy under a new key.

* shell: group tier upload locations instead of re-prepending

* rust volume: copying a remote-backed volume only needs space for the index

Mirror the Go VolumeCopy change: size the free-location check by the
source .idx when the .dat lives in a cloud tier, since only .idx/.vif
land locally.
2026-07-11 13:49:36 -07:00
Chris LuandGitHub e7be6bb2f8 filer: allow clearing a bucket read-only flag stuck after quota removal (#10310)
* filer: allow clearing a bucket read-only flag stuck after quota removal

Once s3.bucket.quota.enforce marks a bucket read-only, removing or
disabling the quota orphans the flag: enforcement skips buckets with a
non-positive quota, and fs.configure merges booleans with OR so
-readOnly=false could never turn it off. The only way out was deleting
the whole path rule.

- s3.bucket.quota -op=remove/disable and the admin server quota update
  now lift the read-only flag on the bucket's path rule
- fs.configure now honors explicitly passed false boolean flags
  (-readOnly, -fsync, -worm) instead of OR-merging them away

* filer: ClearBucketReadOnly reports unchanged when the save fails
2026-07-10 22:09:39 -07:00
Chris LuandGitHub 298ab35fd7 shell: default batch size for ec.encode and ec.decode (#10308)
* shell: ec.encode batches 10 volumes by default

Encoding a whole collection as one batch means a late failure leaves
everything half-converted. Default -batchSize to 10 so each batch is
encoded, rebalanced, verified, and its originals deleted before the
next starts. -batchSize=0 keeps the all-at-once behavior. Batch
progress messages now print only when there is more than one batch,
so small runs read as before.

* shell: ec.decode decodes in batches, refreshing topology in between

ec.decode walked every volume off the single topology snapshot taken
at startup, which goes stale as earlier decodes move shards around and
create volumes. Decode 10 volumes per batch by default, re-collecting
the topology and rebuilding the free-space accounting between batches.
-batchSize=0 keeps the single-snapshot behavior.
2026-07-10 16:44:46 -07:00
Chris LuandGitHub 5c511c4894 ec.encode: don't rebalance against a topology that predates the new shards (#10303)
Mounting freshly generated shards notifies the master asynchronously, while the post-encode rebalance plans from a fresh VolumeList snapshot; a snapshot that predates the delta shows zero shards, so the balance plans no moves and silently succeeds, and the original .dat is deleted with all shards on the generation host. Poll until every encoded volume reports a full shard set before balancing — across all disk types, since fresh shards register under the source volume's disk type, and scoped to the newest encode generation so an orphaned older generation neither satisfies the wait nor defeats the clump check. As defense in depth, refuse to delete originals when a volume's shards still sit on one node while another node has free EC slots.
2026-07-10 12:41:16 -07:00
qzhelloandGitHub 95023af489 fix(shell): print markVolumeWritable/markVolumeReadonly based on the writable flag (#10283) 2026-07-09 00:30:21 -07:00
Chris LuandGitHub 02b5b66a3f topology/balancer: share replica selection between shell and workers (#10276)
Move pickOneReplicaToCopyFrom, pickOneReplicaToDelete,
pickOneMisplacedVolume, and isMisplaced into weed/topology/balancer,
following satisfyReplicaPlacement. Selection functions take the shared
balancer.Replica shape and return indices, so the shell keeps its own
replica type; behavior is unchanged and covered by the existing shell
tests.
2026-07-08 20:06:15 -07:00
Chris LuandGitHub 78e428758b volume.fix.replication: parallelize under-replicated volume copies (#10275)
* volume.fix.replication: parallelize under-replicated volume copies

Fan out fixOneUnderReplicatedVolume up to -maxParallelization at a time.
Destination selection and free-slot accounting stay atomic behind a
scheduler mutex, so concurrent fixes see each other's reservations; a
failed copy returns its reserved slot. A per-server in-flight cap
(-maxParallelizationPerServer, default 1) keeps many simultaneous copies
from swamping a single destination server; when every eligible
destination is at the cap the fix waits for a slot instead of failing.

* volume.fix.replication: isolate the scheduler's location ordering

Clone allLocations before the per-volume fan-out so the scheduler's
re-sorting cannot alias the slice shared with the concurrent delete
phases, and make the test's per-iteration location copy explicit.
2026-07-08 20:03:01 -07:00
Chris LuandGitHub a9cfbd8d3a s3: tear down the emptied .versions directory on last-version delete; drain existing residue (#10278)
* s3: routed last-version delete removes the emptied .versions directory

The routed versioned delete (routedDeleteSpecificVersion) repoints the
latest pointer and deletes the version file, but unlike the lock-path
fallback (updateLatestVersionAfterDeletion) it never tears down the
.versions/ directory it just emptied. The residue keeps the key's read
path in the self-heal rescan loop: every GET of the deleted key logs
event=surfaced plus a GetObject error until the background
EmptyFolderCleaner gets to the directory — at least two minutes away on
its delay queue, and possibly never (the queue is in-memory, bounded,
and gated on the bucket's allow-empty-folders policy). Veeam's lock
arbitration probes deleted lock keys continuously, so those windows are
always open and the log spam is chronic.

ObjectMutation DELETE gains remove_empty_parent: after the child delete,
the filer best-effort removes the parent directory in the same locked
transaction. Non-recursive on purpose — a concurrent write that lands a
new version fails the removal instead of being lost with it. The routed
last-version delete sets it on the version-file DELETE, matching the
lock-path fallback's contract.

Claude-Session: https://claude.ai/code/session_014mMYAHXZySkCCUfpRFNtSv

* s3: drain empty .versions residue on read heal and in s3.versions.audit

Directories already stranded by pre-teardown deletes (or dropped from
the EmptyFolderCleaner's bounded in-memory queue) previously re-entered
the self-heal rescan on every GET forever: the heal only cleared the
pointer and nothing ever removed the directory, and s3.versions.audit
counted the state as clean.

When the heal rescan finds no remaining version, remove the directory
outright (non-recursive, so orphan children still block and fall back to
the pointer clear) and log event=healed mode=empty_dir_removed; the next
GET takes the clean not-found path. The audit gains an empty category so
the residue is visible, and -heal removes such directories in bulk.

Claude-Session: https://claude.ai/code/session_014mMYAHXZySkCCUfpRFNtSv
2026-07-08 18:50:54 -07:00
Chris LuandGitHub 11fd20e2b0 s3.bucket.list: measure quota usage by logical size (#10274)
Align the usage percentage with s3.bucket.quota.enforce and the admin
UI, which measure quota against the live data size (size minus
un-vacuumed deleted bytes). Also print the logical size so both the
raw and live views stay visible.
2026-07-08 14:32:04 -07:00
cfb46ee19f volume.balance: rank by physical disk usage (#10271)
* volume.balance: rank by physical disk usage

* volume.balance: keep -byDiskUsage ranking on one scale across the fleet

A server that does not report disk bytes ranks at whole volume-equivalents
while reporting servers stay below 1.0, so during a rolling upgrade the
balancer drains nearly empty old-build servers onto physically fuller ones.
Decide the scale once: rank by physical used percent only when every server
reports disk bytes, otherwise fall back to the data-size ranking for all.
Normalizing the fallback by maxVolumeCount instead would reintroduce the
over-configured-maxVolumeCount distortion this flag exists to avoid.

---------

Co-authored-by: Chris Lu <chris.lu@gmail.com>
2026-07-08 09:29:59 -07:00
e64d01825f feat(shell): add -delete option to remote.copy.local (#10228)
* shell: add -delete option to remote.copy.local

Add a -delete flag to remote.copy.local that removes files and
directories from remote storage when they no longer exist locally,
similar to rsync --delete. This makes the command usable for
scheduled one-shot backups that also propagate local deletions.

- -include/-exclude patterns also limit which remote files are deleted
- size/age filters only apply to copying, since remote entries have no
  local attributes to filter on
- orphaned remote directories are removed after their contents,
  deepest first, and only when no name filter is set (a recursive
  RemoveDirectory could otherwise remove intentionally kept files)
- deletion is skipped entirely if any copy failed
- -dryRun shows DELETE lines for review before committing to anything

Fixes seaweedfs/seaweedfs#8609

Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>

* shell: fix remote.copy.local -delete deleting files outside -dir

Traverse lists remote objects by key prefix with no delimiter, so a -dir
pointing at a subdirectory also matches siblings that merely share its
name prefix (foo -> foobar). Those are not under the local traversal
root, so -delete treated them as extraneous and removed them. Scope
deletion candidates to paths under dirToCopy.

Also drop the directory-removal path: RemoveDirectory is a no-op on every
backend and Traverse never emits directory entries, so it only ever
printed success for work it never did.

---------

Co-authored-by: Jason Lin <jason@jtx.com.tw>
Co-authored-by: Claude Fable 5 <noreply@anthropic.com>
Co-authored-by: Chris Lu <chris.lu@gmail.com>
2026-07-04 10:50:32 -07:00
Chris LuandGitHub 292c7493fa s3: enforce bucket quota on logical size and surface read-only state in Admin UI (#10224)
* s3: enforce bucket quota on logical size, not un-vacuumed physical size

A bucket full of deleted/overwritten objects awaiting vacuum went
read-only while its live data stayed under quota, because enforcement
used the raw single-copy volume size with garbage included. Subtract
DeletedByteCount via a LogicalSize() helper in the auto-enforce loop,
the s3.bucket.quota.enforce command, and the bucket_size_bytes metric
(labeled logical but counting garbage too). Deleting objects now
relieves quota immediately and enforcement matches the UI usage figure.

* admin: surface bucket read-only state in the S3 buckets UI

Read the read-only flag quota enforcement writes to filer.conf and show
it as a badge in the bucket list and a Status row in the details modal,
so an operator can see why writes are being rejected.
2026-07-03 12:39:45 -07:00