Commit Graph
981 Commits
Author SHA1 Message Date
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
ed1c54dae9 Bump Tarantool client library from 2.4.2 to 3.0.0 (#10377)
* Bump Tarantool client library from 2.4.2 to 3.0.0

* Fix review comments

---------

Co-authored-by: Marat Karimov <karimov_m@inbox.ru>
2026-07-20 17:35:20 -07:00
Chris LuandGitHub efdfeaba44 cassandra: do not mask KvGet backend errors as not-found (#10361)
* cassandra: do not mask KvGet backend errors as not-found

* use errors.Is for the gocql sentinel check
2026-07-18 13:57:24 -07:00
Chris LuandGitHub 6f14be1138 stats: remote-mount bucket cache hit/miss metrics (#10352)
Reads of remote-backed entries now record hit or miss in
SeaweedFS_remote_cache_read_total{source,bucket,result} on the filer HTTP
path and the S3 gateway, so cache effectiveness of mounted buckets can be
graphed. Inline-content entries count as hits since they are served
locally without chunks. The filer purges the per-bucket series when the
bucket directory is deleted, so a standalone filer does not accumulate
series across bucket delete/recreate churn.
2026-07-16 16:58:45 -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 c015cc3939 generate vtproto marshalers for filer_pb and use them on the metadata log path (#10337)
* generate vtproto marshalers for filer_pb and use them on the metadata log path

Reflection-based proto.Unmarshal allocates a fresh message tree through
reflect.New on every call. On the metadata subscription fan-out the same
event is decoded once per subscriber, so reflect.New tops the decode
churn under many mounts.

Generate MarshalVT/UnmarshalVT/SizeVT for filer.proto (a separate
filer_vtproto.pb.go, filer.pb.go untouched) and call them on the log
entry marshal and the subscribe/replay decode paths. UnmarshalVT
allocates message structs directly and copies byte and string fields, so
it stays wire-compatible with proto.Unmarshal and preserves the
non-aliasing the persisted-log cache depends on.

For SubscribeMetadataResponse this cuts decode allocations 69 -> 50 and
~4.5us -> ~2.1us per event; the win scales with subscriber overlap.

* marshal log entries directly into the buffer

SizeVT is allocation-free and MarshalToSizedBufferVT writes into a
pre-sized slice, so the log entry can be marshaled straight into
logBuffer.buf. This drops the per-entry MarshalVT allocation and the
follow-up copy on the write path.

* expand vtproto benchmarks: marshal, decode, and marshal-into-buffer by chunk count

Parametrize by nested-message count (chunks per event) and add encode +
zero-alloc marshal-into-buffer benchmarks alongside the decode one, so
the write-path win from MarshalToSizedBufferVT is measurable too.

* keep proto.Unmarshal for metadata events to preserve UTF-8 validation

UnmarshalVT skips proto3's UTF-8 validation of string fields, so a
SubscribeMetadataResponse with an invalid-UTF-8 string (e.g. Directory
"\xff") that proto.Unmarshal rejects would decode and reach path
filtering and subscribers. Decode events with proto.Unmarshal again;
UnmarshalVT stays on the log entry paths, whose only variable-length
fields are bytes and so carry no UTF-8 constraint.

Tests cover the codec difference and that a malformed event is skipped
before delivery.
2026-07-15 02:32:05 -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 b43089f721 s3: keep empty-folder cleanup out of the multipart .uploads staging tree (#10273)
* s3: keep empty-folder cleanup out of the multipart .uploads staging tree

The async EmptyFolderCleaner deleted <bucket>/.uploads once it looked
empty. A concurrent CreateMultipartUpload inserting its marker between
the cleaner's emptiness check and the bulk child delete had its row
wiped, so the upload silently vanished: ListMultipartUploads then omits
it and the following part/complete/copy calls fail. Skip the .uploads
subtree in both the queue and the delete path (including the eager
parent cascade); the multipart upload lifecycle owns it.

* s3: slice the bucket-relative path instead of reallocating it
2026-07-08 14:30:57 -07:00
Chris LuandGitHub 6e477ae00f filer: keep the internal .system folder out of the per-bucket store path (#10248)
* filer: keep .system internal folder in the default SQL table

Bucket-table SQL stores read the first path segment under /buckets as a
bucket name. The ListBuckets owner index lives at /buckets/.system/..., so
every write there hit isValidBucket(".system") == false and returned
"invalid bucket name .system", flooding the filer log on the postgres/mysql
backends. Route dot-prefixed internal folders to the default table by their
full path, like any other non-bucket entry.

* filer: keep .system internal folder in the default leveldb3 DB

Same guard as the SQL stores: leveldb3 would otherwise open a separate DB
for the .system owner-index folder instead of keeping it in the default DB.

* filer: keep .system internal folder under the default ydb prefix

Skips a DescribeTable round trip per operation on the .system owner-index
path, which never resolves to a real bucket table.

* filer: keep .system internal folder in the default arangodb collection

Avoids creating a stray collection for the .system owner-index folder.
2026-07-06 11:25:50 -07:00
Chris LuandGitHub 39ff5ae767 filer: default cassandra2 timeout and ydb prefix so env-var configs match the scaffold (#10234)
* cassandra2: default connection_timeout_millisecond so env-var configs keep the 600ms timeout

The scaffold documents a 600ms default, but the value has no SetDefault. A
config supplied purely through env vars (or a minimal toml) that omits the
key read back 0, silently overriding the client timeout with no bound.

* ydb: default the table path prefix so env-var configs keep the seaweedfs sub-path

The scaffold documents prefix = "seaweedfs", but with no SetDefault a config
that omits it lands tables at the database root instead of under seaweedfs/.
2026-07-05 10:19:20 -07:00
Chris LuandGitHub 873705baf9 filer: default the filemeta CREATE TABLE for postgres2/mysql2 when createTable is unset (#10232)
* postgres2: default the filemeta CREATE TABLE when createTable is unset

An empty createTable rendered through fmt.Sprintf produced
%!(EXTRA string=filemeta), which Postgres rejected with a syntax error at
init. Fall back to a working template so a minimal config bootstraps.

* mysql2: default the filemeta CREATE TABLE when createTable is unset

Same empty-template failure the postgres2 path had: an unset createTable
rendered to %!(EXTRA string=filemeta) and MySQL rejected it at init.
Fall back to a working template.
2026-07-05 10:17:40 -07:00
Chris LuandGitHub ece4f42ecd fix(filer): avoid ReaderCache WaitGroup reuse race between reads and destroy (#10190)
filer: count reader on cacher waitgroup under the map lock

The read's wg.Add(1) ran after ReadChunkAt released the ReaderCache lock, so a
concurrent destroy() (error eviction, LRU, or UnCache) could start wg.Wait() on
a zero counter and then race the Add - a WaitGroup reuse that trips -race and
can panic. Move the Add under the lock, before the cacher can leave the
downloaders map, so a destroy is always ordered against a counted read.
2026-07-01 21:17:46 -07:00
bdcc3154ed refactor: centralize genUploadUrl in UploadOption (#10164)
* refactor: centralize genUploadUrl in UploadOption

Replace inline genFileUrlFn closures with operation.GenUploadUrl field:

- Add GenUploadUrl func(host, fileId) string to UploadOption struct
- Add GenUploadUrlProxy(filerAddress string) utility function
- Remove genFileUrlFn parameter from UploadWithRetry signature
- Update all callers: mount, gateway, mq, filer_copy, filer_sync

This matches the weed mount -filerProxy pattern exactly,
factorizing the URL generation logic across all consumers.

Co-Authored-By: Athena 🏛️ <hermes-agent@local> (custom / Qwen3.6-35B-A3B-UD-Q4_K_XL.gguf)

* docker release: run all platform jobs in one wave, cache rocksdb compile

Drop max-parallel so the 13 per-platform builds run together instead of two
waves of 8 (rocksdb was queuing behind the cap and starting ~8 min late).

Keep cache-to mode=max for rocksdb: its RocksDB static_lib compile is
sha-independent, so it caches across releases and stops being the ~16-min
long-pole that gates the merge fan-in. go-build variants stay mode=min.

Co-Authored-By: Athena 🏛️ <hermes-agent@local> (custom / Qwen3.6-35B-A3B-UD-Q4_K_XL.gguf)

* refactor: centralize genUploadUrl in UploadOption

Replace inline genFileUrlFn closures with operation.GenUploadUrl field:

- Add GenUploadUrl func(host, fileId) string to UploadOption struct
- Add GenUploadUrlProxy(filerAddress string) utility function
- Remove genFileUrlFn parameter from UploadWithRetry signature
- Update all callers: mount, gateway, mq, filer_copy, filer_sync

This matches the weed mount -filerProxy pattern exactly,
factorizing the URL generation logic across all consumers.

Co-Authored-By: Athena 🏛️ <hermes-agent@local> (custom / Qwen3.6-35B-A3B-UD-Q4_K_XL.gguf)

* Remove accidental ROCmFPX submodule reference

* gofmt chunk upload option block

* Preserve broker cipher and re-read proxy filer per upload attempt

Chunk uploads must keep the configured Cipher, and both the mount and broker current filer can change on failover, so build the proxy upload URL inside the closure instead of capturing the address once.

---------

Co-authored-by: Chris Lu <chris.lu@gmail.com>
2026-06-30 20:45:43 -07:00
424cd164e9 s3: invalidate stale reader cache locations on chunk read failure (#10156)
* s3: invalidate stale reader cache locations on chunk read failure

* filer: share the chunk-read self-heal across reader cache and streaming paths

The reader cache retry added a third copy of the invalidate-relookup-compare-retry
dance already inlined in PrepareStreamContentWithThrottler and duplicated in
retryWithCacheInvalidation. Extract retryFetchWithFreshLocations and route all
three through it, parameterized by the refetch primitive.

* filer: drop redundant completedTimeNew store in reader cache success path

startCaching already stamps completedTimeNew unconditionally before the
fetchErr branch; the second store inside the success branch is dead.

* filer: make NewReaderCache cache invalidator an explicit parameter

The variadic ...CacheInvalidator only ever read the first element, so a caller
could pass two and silently get one. Take a single explicit argument and have
the non-S3 callers pass nil.

* filer: inject reader cache chunk fetch as a struct field

Replace the process-global readerCacheFetchChunkData test seam with a
per-instance fetchChunkDataFn field defaulted in NewReaderCache, matching how
lookupFileIdFn is already wired. Tests set the field on the cache instead of
swapping a shared global.

* filer: log the location count, not full URLs, on self-heal retry

---------

Co-authored-by: Chris Lu <chris.lu@gmail.com>
2026-06-30 13:27:49 -07:00
Chris LuandGitHub 803c5a8dca fix(filer): use DROP TABLE IF EXISTS in SQL stores (#10158)
Concurrent bucket deletion across multiple filer replicas races on the
per-bucket DROP TABLE. The first replica drops the table; the rest hit
an undefined-table error (postgres 42P01, mysql 1051) which propagates
out of DeleteFolderChildren and panics the filer. On restart the same
pending DROP re-runs and the filer crash-loops.

Make the drop idempotent. Same defect class in all SQL backends, so fix
postgres, postgres2, mysql, mysql2, and sqlite together.
2026-06-30 10:38:51 -07:00
e1f89f85f2 fix(filer): apply -filer.disk default to metadata log assigns (#10080)
* fix(filer): apply -filer.disk default to metadata log assigns

Metadata event log writes call operation.Assign directly and used only
FilerConf path rule DiskType. When filer.conf rules were missing or
unmatched, the master received an empty DiskType and grew volumes on the
built-in hdd layout.

Mirror resolveAssignStorageOption: wire FilerOption.DiskType into the
Filer, fall back when the matched path rule has no disk type, and return
the matched rule from resolveMetadataLogAssignDiskType to avoid duplicate
MatchStorageRule lookups.

Co-authored-by: Cursor <cursoragent@cursor.com>

* mini: fall back to -volume.disk for filer default disk type

weed server copies -volume.disk into the filer disk default when
-filer.disk is unset; weed mini did not, so metadata-log assigns sent
an empty disk type on clusters that only tag volumes (e.g. hot/warm).

---------

Co-authored-by: Cursor <cursoragent@cursor.com>
Co-authored-by: Chris Lu <chris.lu@gmail.com>
2026-06-24 10:47:11 -07:00
Chris LuandGitHub 63f2f0bef5 s3: keep a file promoted to a directory retrievable as an object (#10070)
* filer: treat a directory carrying object data as an S3 key object

A file promoted to a directory by a child write keeps its chunks, inline
content, or remote-tiered entry. Recognize that as a directory key object,
not only when a Mime is set, so the object still lists, demotes on delete,
and is not reclaimed by cleanup like the object it still is.

* filer: keep the empty-folder cleaner from reclaiming a promoted object

The cleaner skips directory key objects, but its check only looked at the
Mime. Mirror the chunks/content/remote check so a file promoted to a
directory is not deleted once its children are gone.

* s3: serve ranged GET for a directory that carries object data

Reject only zero-size directories so a file promoted to a directory streams
range requests instead of returning 404, while empty directories still 404.

* s3: return HEAD metadata for a directory that carries object data

HEAD now 404s a directory only when it has no data, so a promoted object is
retrievable while empty/implicit directories still fall back to LIST.
2026-06-23 14:06:00 -07:00
16c3f5c816 fix: Resolve inconsistent usage of error variables (#10060)
* fix: Resolve inconsistent usage of error variables

* mysql2: guard nil DB on open failure and wrap connect error

---------

Co-authored-by: muminglei <muminglei@cmict.chinamobile.com>
Co-authored-by: Chris Lu <chris.lu@gmail.com>
2026-06-23 01:25:02 -07:00
Chris LuandGitHub 3ccd4ed85c filer: skip COLLATE "C" list fallback on CockroachDB (#10015)
* filer: skip COLLATE "C" list fallback on CockroachDB

CockroachDB string comparison is already byte-ordered, so wrapping the
list queries in COLLATE "C" can never change result order. It reports
datcollate=en_US.utf8 regardless of how the database was created, so the
collation check always misfires and forces the fallback. On 22.1 and
older COLLATE "C" is rejected as an invalid locale, turning every filer
list query into a hard failure. Detect the backend via version() and
keep the default ordering.

* filer: test CockroachDB collation detection

Cover the CockroachDB skip path and the locale-aware Postgres force path
with go-sqlmock.
2026-06-19 09:22:45 -07:00
Chris LuandGitHub 7e13340dcb filer: tolerance-window read pattern detection for concurrent readahead (#9983)
* filer: tolerance-window read pattern detection for concurrent readahead

ReaderPattern detected sequential access via strict contiguity (lastReadStopOffset
== offset). Under concurrent/reordered ReadAt (parallel readahead, which ReadAt
already supports via RLock + atomics), that exact match frequently misses even for
a genuinely sequential stream, drifting toward random mode and disabling prefetch.

Track a read frontier (max offset+size, advanced with a lock-free CAS loop) and
treat a read as sequential when its start is within SeqTolerance (8 MiB) of the
frontier. The window absorbs reordered/concurrent readahead while still rejecting
far random jumps; the existing ModeChangeLimit hysteresis is unchanged. API
(NewReaderPattern/MonitorReadAt/IsRandomMode) is unchanged, so reader_at is
unaffected. Adds reader_pattern_test.go.

* filer: read the read frontier inside the CAS loop

Capture the frontier from the CAS loop's own load rather than a separate
up-front snapshot, so the sequentiality diff is judged against the freshest
pre-image even if a concurrent readahead advances the frontier while we loop.
Also drops the now-redundant load. Mirrors the same fix on the write-side
ReaderPattern twin (review feedback on the companion PR).

* filer: add frontier/boundary/recovery guard tests for ReaderPattern

Mirror the regression guards added to the write-side WriterPattern: assert
the max-frontier never regresses on a backward read (the CAS invariant), pin
both sides of the inclusive SeqTolerance boundary, and verify sustained near
reads recover sequential mode out of the negative floor. Each guards an
invariant the original four tests left uncovered.
2026-06-16 09:15:44 -07:00
Chris LuandGitHub 594fc667d5 Cut per-subscriber replay decode and widen replay concurrency (#9917)
* Filter metadata events before unmarshaling them per subscriber

Every subscriber unmarshaled every log entry into a full event just to
run the path filter, and entries carry complete chunk lists, so a fleet
of path-filtered subscribers spends almost all replay CPU materializing
events it then discards. A shallow wire scan now extracts just the
directory, entry names and rename destination into a skeleton event,
feeds the same matcher, and skips the decode for entries the subscriber
cannot match. Any scan surprise (malformed bytes, merged duplicate
message fields) falls back to the full decode, and the unsynced-events
heartbeat keeps firing for skipped entries.

* Raise the legacy replay cap

The cap was sized when every replay pinned a private chunk reader per
source filer. Replays now share decoded chunks, so sixteen needlessly
serializes subscriber catch-up; the expensive part stays bounded by the
cache's load gate.

* Weight concurrent log-chunk loads by size

The flat eight-load gate let eight tiny chunks through as reluctantly as
eight full ones. Charge each load's chunk size against a 128MB in-flight
budget instead: small chunks decode wide open while full-size ones still
serialize enough to cap the transient peak. Oversized weights clamp to
the budget so they can always acquire.

* Propagate heartbeat send failures and reset the skip counter

A failed heartbeat send means the stream is gone, so end the replay
instead of scanning on. A delivered event also resets the skip counter,
keeping the heartbeat cadence relative to the last thing the client
actually received.

* Share the unsynced-events counter across the prefilter and delivery

Two independent counters could starve the heartbeat: alternating drops
reset each side before either reached its threshold. One shared counter
increments on every dropped entry, prefiltered or not, and only an
actual delivery resets it, restoring the original cadence exactly.

* Tighten comments

* Benchmark the subscription match paths

For a thousand-chunk event that the subscriber filters out, the shallow
scan matches in 10us and 9 allocations against 175us and 4031
allocations for the full decode.
2026-06-10 13:08:34 -07:00
Chris LuandGitHub 2ac5aa72c7 add elastic8 filer store for Elasticsearch 8 (#9916)
* elastic: fix listing against a missing or empty directory index

The refresh 404 leaked into the named return, so the first listing of a
directory whose index does not exist yet returned an error instead of an
empty result. Sorting also fails on an index with no documents
("No mapping found for [_id] in order to sort on"); unmapped_type
keeps the resumed-listing path working there.

* add elastic8 filer store for Elasticsearch 8

Elasticsearch 8 disables _id fielddata by default, so the elastic7
store's directory listings fail with "Fielddata access on the _id
field is disallowed". elastic8 uses the same client and configuration
options, but also indexes the document id as an Id field and sorts
listings on Id.keyword.
2026-06-10 12:10:49 -07:00
Chris LuandGitHub bf76040046 Share metadata-log replays per chunk instead of per file (#9906)
* Share metadata-log replays per chunk instead of per file

Log file chunks are immutable: each metadata-log flush uploads one whole
buffer of complete records as a new chunk, and appends only add chunks.
So cache decoded entries per chunk, with no age gate and no fingerprint
revalidation. The per-file cache excluded files younger than two flush
intervals, which is exactly the hot tail that every tailing or
reconnecting subscriber replays — each through a private chunk reader
holding an 8MB buffer and decoding the whole file from byte zero.

A chunk's flush time also upper-bounds every record timestamp inside it,
so a tail replay now skips cold chunks without reading them at all.

If a chunk does not decode standalone (records spanning chunk
boundaries, or a corrupt size prefix), fall back to streaming the whole
file as one byte stream, resuming after the last yielded entry.

* Evict idle metadata-log cache entries

The replay cache only evicted on insert, so once filled it held its full
budget forever. Stamp entries on use and sweep the LRU tail every minute,
dropping anything untouched for five minutes; the cache now holds memory
only while subscribers actually replay.

* Reject implausible records when decoding log chunks

proto.Unmarshal is permissive: empty payloads and unknown-field garbage
parse without error, so a chunk starting mid-record could decode by
coincidence and get cached instead of falling back to the byte stream.
Enforce what the writer guarantees - records are never empty and carry
strictly increasing positive timestamps within one flushed buffer.

* Gate the singleflight test on an open flight

The sleep alone only probabilistically created concurrent misses; a
started channel now proves the loader holds the flight before callers
are released.
2026-06-10 10:57:11 -07:00
Chris LuandGitHub 9e98ec4b2e Share decoded metadata-log entries across subscriber replays (#9903)
perf(filer): share decoded log entries across metadata replays

Concurrent SubscribeMetadata replays of the same persisted log history each
opened a chunk reader per source filer and re-decoded the same files, so a
reconnect storm multiplied into many GB of buffers. Cache the decoded entries
of completed log files in a bounded LRU, coalescing concurrent loads with
single-flight and bounding concurrent decodes. Each hit is validated against
the file's current chunk set, so a file that received a late append is
reloaded rather than served stale; reads that stop on an unreachable chunk are
delivered but not cached so a transient outage re-probes on the next replay.
2026-06-09 13:34:11 -07:00
Chris LuandGitHub 048f9ece2d Fix filer metadata-replay OOM under mount reconnect storms (#9901)
* fix(filer): propagate multi-filer metadata log read errors

A genuine (non not-found) read error in one filer's log stream was logged
and skipped, then the merged cursor advanced past the gap, silently
dropping that file's events. Abort the whole replay so the subscriber
re-reads from the unchanged position; chunk-not-found still skips.

* perf(mount): read persisted metadata log chunks directly from volume servers

Set LogFileReaderFn so the filer returns log file references and the mount
reads the chunk data itself, instead of the filer reading, decoding, and
streaming every persisted entry. Keeps a reconnect storm of many mounts
from concentrating hundreds of concurrent log replays in filer memory.

* perf(filer): pre-size chunk stream reader buffer to view size

The chunk size is known up front, so grow the buffer once instead of
letting bytes.Buffer double as the streamed pieces arrive (which
transiently overshoots to ~2x per reader).

* fix(filer): bound concurrent persisted-log replays

Each server-side replay holds an open chunk reader per source filer plus a
readahead buffer, so a reconnect storm of clients that predate the
metadata-chunks offload multiplies into many GB. Gate replays with a
semaphore; abort the acquire when the subscriber's stream is gone so
cancelled clients do not pile up parked goroutines.
2026-06-09 11:43:12 -07:00
Chris LuandGitHub 8776b9d311 feat(filer): object size distribution metric and dashboard panels (#9902)
* feat(filer): record object size distribution histogram

Add SeaweedFS_filer_object_size_bytes, a histogram sampled when an
object is first created in the filer namespace, covering every write
protocol (S3, WebDAV, FUSE mount, direct HTTP). Buckets follow the
1KB/100KB/1MB/100MB/1GB ranges operators use to size collections.
Directories, overwrites, and metadata-only updates are not sampled, so
the bucket counts track the size distribution of distinct objects.

* feat(metrics): add filer object size distribution dashboard panels

Add a write-rate-by-size-range graph and a size-distribution bar gauge,
driven by SeaweedFS_filer_object_size_bytes, to the standalone and Helm
Grafana dashboards. Per-range subtractions are clamped at zero so
transient negative rate() samples do not render below the axis.
2026-06-09 10:41:11 -07:00
Chris LuandGitHub 7aba10fa1a fix(mongodb): merge URI auth fields with username/password override (#9889)
* fix(mongodb): merge URI auth fields with username/password override

SetAuth replaced the whole Credential parsed from the URI, dropping
AuthSource and AuthMechanism. Start from the URI-parsed Auth and only
override the username and password so credentials scoped to a specific
auth database keep working.

* fix(mongodb): set PasswordSet for explicit credentials

Required by GSSAPI auth when a password is supplied; ignored for other
mechanisms.
2026-06-09 00:18:33 -07:00
Chris LuandGitHub d67fc48fbd fix(filer.sync): guard batched events against nil EventNotification (#9877)
* fix(filer.sync): guard batched events against nil EventNotification

The server folds a backlog into one response: the first event in the
top-level fields, the rest in resp.Events, and the pipelined sender can
drain an idle heartbeat (nil EventNotification) into that tail. Only the
envelope got the freshness-signal guard, so a batched heartbeat reached
AddSyncJob and nil-derefed in IsEmpty while replaying a backlog buffered
during a peer outage.

Route every event, envelope and batched, through one handler that sends
freshness signals (nil heartbeat, empty marker) to OnIdleHeartbeat.

* fix(filer): guard MetaAggregator batched events against nil EventNotification

The peer subscription's envelope is nil-guarded but its batched tail was
not. The aggregator doesn't enable idle heartbeats today, so the server
can't fold a nil EventNotification into the batch yet, but make the two
loops consistent so it can't nil-deref if that changes.
2026-06-08 13:56:16 -07:00
Chris LuandGitHub a24f4844d3 filer: keep S3 list order byte-lexicographic regardless of SQL name column collation (#9824)
* mysql: keep S3 list order byte-lexicographic regardless of name column collation

ORDER BY name and the name > ? pagination predicate follow the column
collation, so a case-insensitive filemeta.name (e.g. utf8mb3_general_ci)
returns S3 keys out of byte order and breaks clients that merge two sorted
listings.

Detect the live name collation at startup; only when it isn't binary, wrap
the list comparison, prefix, and ORDER BY in BINARY name so order and
pagination stay consistent. Correctly configured utf8mb4_bin tables keep
their indexed range scan unchanged, and the operator gets a warning to
convert the column.

* postgres: keep S3 list order byte-lexicographic regardless of name column collation

ORDER BY name and the name > $n pagination predicate follow the column or
database collation, so a locale-aware filemeta.name (e.g. the en_US.UTF-8
database default) returns S3 keys out of byte order and breaks clients that
merge two sorted listings.

Detect the live name collation at startup; only when it isn't byte-ordered,
wrap the list comparison, prefix, and ORDER BY in COLLATE "C" so order and
pagination stay consistent. A byte-ordered (C/POSIX/C.UTF-8) column keeps its
indexed range scan unchanged, and the operator gets a warning to declare the
column COLLATE "C".
2026-06-04 14:33:41 -07:00
Chris LuandGitHub 8c2d9f466f filer: stream persisted log files when serving metadata subscriptions (#9821)
* filer: stream persisted log files when serving metadata subscriptions

readFileEntries buffered every LogEntry of a whole log file into memory
before returning them one by one, making a subscription read O(entries in
one log file) instead of O(one entry). On a filer with large per-entry
metadata, many concurrent SubscribeMetadata streams each loading a full
log file exhausted memory.

Keep a current LogFileIterator and return one entry at a time, advancing
files as each is exhausted. The deleted-volume skip is preserved.

* filer: close the log file iterator on read errors too

A genuine read error returned early without closing the current
LogFileIterator, leaving its ChunkStreamReader alive until GC. Close on
every exit path and propagate only a real error.

* filer: close persisted-log iterators when a subscription stops early

The streaming iterator keeps a log file reader open across calls, so a
subscription that returns before EOF (early stop, cancellation) left the
reader alive until GC. Add idempotent Close on LogFileQueueIterator and
OrderedLogVisitor, and have ReadPersistedLogBuffer wait for the readahead
goroutine and close the visitor on the way out.
2026-06-04 13:27:25 -07:00
Chris LuandGitHub 8c60408bfb s3: auto-enforce bucket quota read-only both ways (#9774)
* s3: auto-enforce bucket quota read-only both ways

Quota read-only only ever flipped when an admin re-ran
s3.bucket.quota.enforce, so a bucket that went over quota stayed
read-only forever even after usage dropped back under.

Fold enforcement into the per-minute, leader-locked bucket-size loop
the s3 gateway already runs for metrics: it now flips each bucket's
read-only flag to match its quota in both directions, rewriting
filer.conf only when a flag actually changes. The set/clear decision
lives in one shared FilerConf.ApplyBucketQuotaReadOnly helper so the
shell command and the gateway can't drift.

* only manage read-only when a quota is set, never clobber manual locks

* trim comments
2026-06-01 13:11:18 -07:00
7y-9andGitHub fbcba51e73 refactor: avoid unused sql insert result (#9734) 2026-05-29 00:45:45 -07:00
Chris LuandGitHub dfd05d14cb refactor(filer): remove the inode->path index and the NFS gateway (#9724)
* fix(filer): derive inodes by hash instead of a snowflake sequencer

Compute the same inode the FUSE mount would: non-hard-linked entries hash path + crtime, hard links hash their shared HardLinkId so every link resolves to one inode. Removes the snowflake inodeSequencer and the SEAWEEDFS_FILER_SNOWFLAKE_ID knob; inodes are now deterministic across filers.

* chore: remove the experimental NFS gateway

The NFS frontend ('weed nfs') was the only consumer of the inode->path index. Remove the weed/server/nfs package, the command and its registration, the integration test harness, and the CI workflow; go mod tidy drops the willscott/go-nfs and go-nfs-client dependencies.

* refactor(filer): drop the inode->path index

With the NFS gateway gone, nothing reads it. A regular file's inode is a pure hash of its path and a hard link's is a hash of its shared HardLinkId -- both derivable on demand -- so the secondary KV index and its write/remove hooks are dead. Removes filer_inode_index.go and the recordInodeIndex hooks from the store wrapper.
2026-05-28 15:00:18 -07:00
Chris LuandGitHub 21b4b81edb fix(filer/postgres): default to ON CONFLICT upsert to keep tx alive (#9709)
* fix(filer/postgres): default to ON CONFLICT upsert to keep tx alive

A KvPut from the inode-index secondary write could fail with 23505
(duplicate key) inside a rename's transaction, after which the next
statement returned 25P02 and rename surfaced to FUSE as EIO. Default
the postgres upsert query when enableUpsert=true so INSERTs are
idempotent; the enableUpsert=false escape hatch is preserved for
non-PG-compatible backends.

* fix(filer/mysql): default to ON DUPLICATE KEY UPDATE upsert

Same shape as the postgres default: when enableUpsert=true but no
upsertQuery is configured, install a sensible default so the
inode-index KvPut does not waste a duplicate-key roundtrip on every
entry write. Uses the VALUES() form so the default works on MariaDB
and MySQL >=5.7; the MySQL 8.0.19 row-alias form is left to explicit
config.

* fix(filer): default enableUpsert=true for sql stores

The default-template fallback only kicks in when enableUpsert=true,
so minimal configs that omit the flag entirely were still exposed.
Default it on for postgres/postgres2/mysql/mysql2; an explicit false
in filer.toml still wins because SetDefault only fills absent keys.
2026-05-27 12:23:30 -07:00
Chris LuandGitHub 8fd7c524c7 redis2: apply keyPrefix in KV methods (#9693)
KvPut/KvGet/KvDelete bypassed store.getKey(), so filer.store.id and
other KV writes landed outside the configured prefix. With a Redis
ACL restricted to the prefix this errored with NOPERM; without the
ACL the keys silently lived in the wrong namespace.
2026-05-26 12:49:31 -07:00
Chris LuandGitHub c9868dcf2f filer/posixlock: remove the unused lock-set serde (#9676)
The codec (Set.Marshal/Unmarshal) and its posix_lock.proto were built to
let the lock set ride in an inode's entry metadata, but the authority is
in-memory and ownership handoff/restart is handled by mounts re-asserting
their held locks over the RPC — neither serializes the set. Nothing calls
the serde outside its own tests, so drop it (codec, proto, generated pb,
Makefile). The in-memory Set/Manager are unchanged.
2026-05-25 13:15:19 -07:00
Chris LuandGitHub f8caaa4464 mount,filer: re-assert POSIX locks via keepalive (ownership migration + restart) (#9668)
* mount: renew POSIX lock leases via keepalive

The mount tracks the inode keys it holds locks on and a background loop
renews its session lease (KEEP_ALIVE) with each key's owner filer every
5s, within the filer's 15s TTL. A live mount is never reaped; a dead one
stops renewing and owners reclaim its locks. Tracking is a superset:
holds are added on grant and dropped only on owner release, so a still
held lock is never under-renewed.

* mount,filer: re-assert held POSIX locks via keepalive

The owner filer holds POSIX advisory locks as in-memory soft state, so a key's
owner change (ring rebalance) or an owner restart lost or stranded them: the new
or restarted owner was blind to existing holders and would double-grant.

Make the keepalive carry the mount's held lock ranges per key. The mount mirrors
its own granted locks (posixOwn), and each tick re-asserts them to the key's
current owner, which rebuilds that session's locks from the assertion — self
-healing after a takeover or restart. The owner arbitrates re-asserted locks
against other sessions so it never double-grants; a lock that lost a migration
race is reported, not forced. A bare keepalive (no ranges) still just renews.
2026-05-25 01:02:45 -07:00
Chris LuandGitHub c97b69f8a4 filer: session lease + reaping for POSIX locks (#9666)
* filer: session lease + reaping for POSIX locks

A mount renews its session lease by keepalive (new KEEP_ALIVE op); the
owner filer records last-seen per session and a background sweeper reaps
the locks of leased sessions that stop renewing — a dead or partitioned
mount. Only sessions that have renewed are leased, so this is inert until
mounts run with -posixLock.

* mount: route POSIX advisory locks to the owner filer (-posixLock) (#9665)

mount: route POSIX advisory locks to the owner filer under -dlm

With -dlm, GetLk/SetLk/SetLkw and the flush/release cleanup paths go to
the inode's owner filer via the PosixLock RPC instead of the local table,
so flock/fcntl are honored across mounts. Advisory locking rides the same
switch as whole-file write coordination — and is therefore off under
writeback cache, which implies single-writer. The mount calls its filer
and relies on filer-side forwarding to reach the owner. Keys are the inode
identity (HardLinkId else path); SetLkw is client-side polling with the
FUSE cancel channel (no server wait queue); a per-mount session id
namespaces owners; a local hint avoids a release RPC on every close.

* mount,filer: bound posix-lock release RPCs and stop the reaper on shutdown

The unlock/release RPCs run off the syscall path (close/flush) and used
context.Background() with no deadline, so a slow or unreachable filer could
hang close() indefinitely; bound them to 5s (they still aren't cancelled by
an interrupt). The lease-reaping sweeper now selects on a stop channel that
FilerServer.Shutdown closes, instead of looping for the process lifetime.
2026-05-25 00:00:59 -07:00
Chris LuandGitHub 564b94796a filer: in-memory POSIX lock authority (Manager) (#9663)
Concurrent multi-inode authority over the per-inode Set: a Set per opaque
inode key (path, or hl:<HardLinkId>) plus a session->keys index so a dead
mount's locks reap in O(locks held). Lock state stays in memory like the
distributed lock manager's, off the replicated meta-log. TryLock/Unlock/
GetLk/ReleasePosixOwner/ReleaseFlockOwner/ReleaseSession; empty sets and
stale index entries are pruned on release.
2026-05-24 22:43:17 -07:00
Chris LuandGitHub 475ae2b443 filer: serialize the POSIX lock set for entry metadata (phase 2) (#9661)
* filer: POSIX advisory lock set primitive (phase 1)

Pure per-inode conflict/coalesce/range-split logic for fcntl byte-range
and flock whole-file locks, extracted from the mount's PosixLockTable
without its wait queue or inode-map concurrency. Owner identity is
(Sid, Owner) so the same FUSE owner on different mounts never aliases,
and ReleaseSession reaps a dead mount's locks. The owner filer will hold
one Set per inode under the per-path lock; no concurrency control here.

* test: tolerate transient FUSE invisibility in ConcurrentReadWrite

A concurrent truncating overwrite leaves a short-lived dentry/cache window
where the file is momentarily ENOENT to another opener. Retry the reads and
writes a few times before failing, as ConcurrentDirectoryOperations does.

* filer: serialize the POSIX lock set for entry metadata

Versioned fixed-width binary encoding of a Set, so an inode's held locks
can ride in its entry metadata: a lock op materializes the Set from the
blob, applies under the per-path lock, and writes it back. Empty set
encodes to nil so a lock-free inode carries no blob.

* filer: encode the POSIX lock set as protobuf

Replace the hand-rolled fixed-width codec with a LockSetProto message, so the
metadata blob can gain fields without a format-version migration. proto.Unmarshal
already rejects a malformed blob, so the explicit version and length checks go
away. Marshal now returns an error to match.
2026-05-24 22:33:36 -07:00
Chris LuandGitHub e8e7cd6fac filer: POSIX advisory lock set primitive (phase 1 of distributed FUSE locking) (#9660)
* filer: POSIX advisory lock set primitive (phase 1)

Pure per-inode conflict/coalesce/range-split logic for fcntl byte-range
and flock whole-file locks, extracted from the mount's PosixLockTable
without its wait queue or inode-map concurrency. Owner identity is
(Sid, Owner) so the same FUSE owner on different mounts never aliases,
and ReleaseSession reaps a dead mount's locks. The owner filer will hold
one Set per inode under the per-path lock; no concurrency control here.

* test: tolerate transient FUSE invisibility in ConcurrentReadWrite

A concurrent truncating overwrite leaves a short-lived dentry/cache window
where the file is momentarily ENOENT to another opener. Retry the reads and
writes a few times before failing, as ConcurrentDirectoryOperations does.
2026-05-24 21:56:48 -07:00
Chris LuandGitHub 83195fc111 filer: reuse the caller's fetched entry in CreateEntry (#9645)
CreateEntry starts with a FindEntry to load the current entry. A conditional
CreateEntry already fetched that entry to evaluate the precondition under the
per-path lock, so the create repeated the lookup.

Add an existing *Entry parameter: when non-nil it is used as the current entry
and the internal lookup is skipped; nil keeps the lookup. The gRPC CreateEntry
handler passes the entry it fetched for the precondition, removing the redundant
read while the lock is held. All other callers pass nil.
2026-05-23 21:40:41 -07:00
Chris LuandGitHub 3f6410fdc3 fix(redis3): prevent filer crash from inconsistent skiplist ends (#9602)
* fix(redis3): prevent filer crash from inconsistent skiplist ends

DeleteByKey updated the two ends asymmetrically: the start side decided
whether to clear StartLevels[index] by comparing a cached reference key,
while the end side cleared EndLevels[index] structurally. The redis3
ItemList re-keys a node while keeping its id, so that cached key drifts.
When such a node was the only one at a level and got deleted, the stale
key comparison left StartLevels dangling while EndLevels was cleared to
nil. The next InsertByKey then dereferenced a nil EndLevels[0] and took
down the whole filer during a rename or delete.

Match the deleted node by its unique id so both ends stay consistent,
and guard each end in InsertByKey so an already-corrupted skiplist
persisted in Redis self-heals instead of crashing on load.

* fix(redis3): propagate errors from WriteName node split

The case 2.3 split path returned nil instead of the error in seven
branches. Because the split runs a multi-step sequence (DeleteByKey on
the skiplist, ItemAdd, redis range-delete, ItemAdd), a swallowed failure
let WriteName report success while the skiplist was half-updated, which
the caller then persisted - silently corrupting the directory listing
and setting up the very inconsistent-ends state that crashes the filer.
2026-05-21 02:12:00 -07:00
Chris LuandGitHub a17dca7009 fix(filer): don't disable the SQL idle connection pool when unconfigured (#9591)
* fix(filer): don't disable the SQL idle connection pool when unconfigured

The mysql/mysql2/postgres stores called SetMaxIdleConns(maxIdle)
unconditionally, so an unset connection_max_idle (0) actively kept zero
idle connections - every query opened and closed a fresh connection
instead of reusing the pool.

Only apply the value when it's set; otherwise leave database/sql's
default idle pool of 2 in place.

* comments: shorten idle-pool note

* fix(filer): default the SQL idle pool via config, keep explicit 0 honored

Apply the idle-pool default at the config layer with SetDefault instead of
guarding the SetMaxIdleConns call. An absent connection_max_idle now reads
back as 2 (pool stays on), while an explicit 0 flows through to
SetMaxIdleConns(0) so operators can still disable idle pooling on purpose.
2026-05-20 14:04:23 -07:00
4476cb282b feat(filer): add atime to FuseAttributes + TouchAccessTime RPC (#9556)
* feat(filer): add atime field and TouchAccessTime RPC to filer proto

Introduce POSIX-style access-time tracking on the filer:
- FuseAttributes gains atime (field 22) and atime_ns (field 23).
- New TouchAccessTime RPC (and Touch{Access,Time}{Request,Response})
  lets read paths bump atime without going through UpdateEntry's
  chunk-rewrite/EqualEntry short-circuit.

Additive proto changes only; zero atime is treated as unset and
existing clients are unaffected. Java client proto is kept in lock
step.

Co-authored-by: Cursor <cursoragent@cursor.com>

* feat(filer): wire Atime through Attr codec with mtime fallback

Add Attr.Atime and round-trip it through EntryAttributeToPb /
EntryAttributeToExistingPb / PbToEntryAttribute. A zero proto atime
decodes as Mtime, so legacy entries report a sensible value and
freshly-created/updated entries default Atime to Mtime when callers
do not set it explicitly.

CreateEntry and UpdateEntry stamp Atime = Mtime (or Crtime) when it
is zero. TouchAccessTime later bypasses this path to write atime
alone via Store.UpdateEntry.

Co-authored-by: Cursor <cursoragent@cursor.com>

* fix(filer): preserve atime in first epoch second on decode

The Atime decode branch previously treated any attr.Atime == 0 as
unset and overwrote it with Mtime, which drops valid timestamps in
the first second of the unix epoch where attr.Atime is 0 but
attr.AtimeNs > 0. Check both fields so we only fall back to Mtime
when both are zero.

Co-authored-by: Cursor <cursoragent@cursor.com>

---------

Co-authored-by: Cursor <cursoragent@cursor.com>
2026-05-19 10:22:17 -07:00
Chris LuandGitHub 10cc06333b cluster: restrict Ping RPC to known peers of the requested type (#9445)
Ping previously dialled whatever host:port the caller asked for. Gate
each server's Ping handler on cluster membership: masters check the
topology, registered cluster nodes, and configured master peers; volume
servers only accept their seed/current masters; filers accept tracked
peer filers, the master-learned volume server set, and configured
masters.

Use address-indexed peer lookups to keep Ping target validation O(1):
- topology maintains a pb.ServerAddress -> *DataNode index alongside
  the dc/rack/node tree, kept in sync from doLinkChildNode and
  UnlinkChildNode plus the ip/port-rewrite branch in
  GetOrCreateDataNode. GetTopology now returns nil on a detached
  subtree instead of panicking, so the linkage hooks can no-op safely.
- vid_map tracks a refcount per volume-server address so
  hasVolumeServer answers without scanning every vid location. The
  add path skips empty-address entries the same way the delete path
  already does, so a zero-value Location cannot leak a permanent
  serverRefCount[""] bucket.
- masters reuse a cached master-address set from MasterClient instead
  of walking the configured peer slice on every request.
- volume servers compare against a pre-built seed-master set and
  protect currentMaster reads/writes with an RWMutex, fixing the
  data race with the heartbeat goroutine. The seed slice is copied
  on construction so external mutation cannot desync it from the
  frozen lookup set.
- cluster.check drops the direct volume-to-volume sweep; volume
  servers no longer carry a peer-volume list, and the note next to
  the dropped probe is reworded to make clear that direct
  volume-to-volume reachability is intentionally not validated by
  this command.

Update the volume-server integration tests that drove Ping through the
new admission gate: success-path coverage now targets the master peer
(the only type a volume server tracks), and the unknown/unreachable
path asserts the InvalidArgument the gate now returns instead of the
old downstream dial error.

Mirror the same admission gate in the Rust volume server crate: a
seed-master HashSet built once at startup plus a tokio RwLock over the
heartbeat-tracked current master, both consulted in is_known_ping_target
on every Ping, with InvalidArgument returned for any target that isn't
a recognised master.
2026-05-12 13:00:52 -07:00
Chris LuandGitHub 35e3fe89bc feat(s3/lifecycle): filer-backed cursor Persister + drop BlockerStore (#9358)
* feat(s3/lifecycle): filer-backed cursor Persister

FilerPersister persists per-shard cursor maps as JSON to
/etc/s3/lifecycle/cursors/shard-NN.json via filer.SaveInsideFiler.
One file per shard keeps Save atomic — the filer writes the entry
in a single mutation, so a crash mid-write doesn't leak partial
state. Pipeline.Run loads on start; the periodic checkpoint and
graceful-shutdown save go through this implementation.

A small FilerStore interface wraps the SeaweedFilerClient surface
the persister needs, so tests inject an in-memory fake instead of
mocking the full gRPC client.

* refactor(s3/lifecycle): drop BlockerStore — durable cursor IS the block

A frozen cursor doesn't advance, so the durable cursor (FilerPersister)
encodes the blocked state on its own. On worker restart the reader
re-encounters the poison event at MinTsNs, the dispatcher walks the
same retry budget to BLOCKED, and the cursor freezes at the same
EventTs. Other in-flight events between freeze tsNs and prior cursor
positions self-resolve via NOOP_RESOLVED (STALE_IDENTITY) since the
underlying objects were already deleted on the prior pass.

Removed:
  - BlockerStore interface + InMemoryBlockerStore + BlockerRecord
  - Dispatcher.Blockers + Dispatcher.ReplayBlockers
  - the BlockerStore.Put call in handleBlocked
  - Pipeline.Blockers field + the ReplayBlockers call on startup

Added a TestDispatchRestartReFreezesNaturally that pins the
self-recovery property: a fresh Dispatcher with a fresh Cursor, fed
the same poison event, reaches the same frozen state at the same
EventTs without any durable blocker store.

Operator visibility: a cursor whose MinTsNs hasn't advanced is the
signal — surfaced via the durable cursor file.

* refactor(filer): SaveInsideFiler accepts ctx

ReadInsideFiler already takes ctx; SaveInsideFiler used context.Background()
internally and silently dropped the caller's ctx. Symmetric API now;
cancellation/deadlines propagate through LookupEntry / CreateEntry /
UpdateEntry. Mechanical update of all callers — most pass
context.Background() since the existing call sites have no ctx in scope.

* fix(s3/lifecycle): deterministic order in cursor save

Iterating Go maps yields random order, so json.Encode produced a different
byte sequence on each save even when the state hadn't changed. Sort
entries by (Bucket, ActionKind, RuleHash) before encoding so the on-disk
file diffs cleanly. New test pins byte-identical output across two saves
of the same map.

* fix(s3/lifecycle): log reason when freezing cursor in handleBlocked

handleBlocked dropped the reason via _ = reason with a comment claiming
the caller logged it; none of the three callers do. A frozen cursor is
the only surface where the operator finds out something stuck, so the
reason has to land somewhere. glog.Warningf with shard, key, eventTs,
and the original reason — same shape the rest of the package uses.
2026-05-07 17:45:04 -07:00
Chris LuandGitHub 0fa0a56a5a filer(mysql): TLS hostname/SNI knobs + MariaDB upsert documentation (#9260)
* refactor(filer/mysql): set tls.Config per-instance via Connector instead of global registry

Replace the use of `mysql.RegisterTLSConfig("mysql-tls", ...)` and the
`&tls=mysql-tls` DSN suffix with a per-instance setup that assigns the
`*tls.Config` directly to `mysql.Config.TLS` and opens the database via
`mysql.NewConnector` + `sql.OpenDB`.

The driver's TLS-config registry is process-wide; if a second `MysqlStore`
were ever initialized with different TLS settings (e.g., a filer plus a
separately configured store) the second registration would silently
overwrite the first. The connector pattern keeps the TLS configuration
attached to the connector and avoids that global side effect.

Behavior is otherwise unchanged: TLS is enabled when `enable_tls=true`,
the same `ca_crt`/`client_crt`/`client_key` knobs are honored, and the
TLS minimum version remains 1.2.

* filer(mysql): use system root CAs when ca_crt is empty

Previously, enabling `enable_tls=true` without setting `ca_crt` returned an
unhelpful empty-path read error. Many managed MySQL/MariaDB providers serve
certificates that chain to a public CA already in the host's trust store, so
requiring an explicit CA bundle adds friction with no security benefit.

Leave `RootCAs` unset when `ca_crt` is empty so Go's `tls.Config` falls back
to the system trust store, matching the standard behavior of `mysql --ssl`.
Existing setups with `ca_crt` configured are unaffected.

Also wraps the CA read/parse errors with the file path for easier diagnosis.

* filer(mysql): fail loudly when client_crt / client_key are unreadable

The previous implementation called `tls.LoadX509KeyPair` and silently
discarded any error, falling back to a non-mTLS connection. A typo or
permissions problem in `client_crt` / `client_key` therefore appeared as a
confusing server-side handshake error rather than as a config error,
because the server was expecting a client cert that the filer never sent.

Treat the keypair as required when either path is set, and surface the
underlying load error with both filenames so the misconfiguration is
obvious. The default (both paths empty) is unchanged: no client cert is
sent.

* filer(mysql): add tls_insecure_skip_verify and tls_server_name knobs

When the filer connects to a MySQL/MariaDB cluster whose server
certificate's SAN does not match the connection address (common with
internal load balancers, IP-only connection strings, or self-signed
cluster certs), the TLS handshake fails with `x509: certificate is valid
for X, not Y`. There was previously no way to fix this short of reissuing
the cert.

Expose two new optional knobs on `[mysql]`:

- `tls_server_name` overrides the SNI / cert hostname used for
  verification — the standard fix when the cert SAN is correct but the
  connection address is not.
- `tls_insecure_skip_verify` disables verification entirely as an escape
  hatch for testing or for clusters with no usable SAN.

Both default to off, so existing configurations continue to verify the
server certificate against the connection address as before.

* docs(scaffold/filer.toml): document mysql TLS knobs and MariaDB upsert override

- Document the new `tls_insecure_skip_verify` and `tls_server_name` options.
- Update the `ca_crt` comment to reflect that it is optional and that the
  system trust store is used when the path is empty (matches the runtime
  behavior in mysql_store.go).
- Reword the client cert comments to make the mTLS pairing requirement
  explicit (both `client_crt` and `client_key` must be set together).
- Add a commented-out MariaDB / MySQL 5.7 alternative for `upsertQuery`,
  noting that the default (`AS new` row alias) requires MySQL 8.0.19+.

* filer(mysql): drop redundant blank import of go-sql-driver/mysql

The package was imported twice: once with the `mysql` alias (used for
`mysql.MySQLError`, `mysql.Config`, `mysql.NewConnector`, etc.) and once
as `_` to register the driver. The named import already triggers
`init()` and registers the driver, so the blank import is dead weight.
2026-04-28 01:29:41 -07:00
Chris LuandGitHub c934b5dab6 fix(credential/postgres,s3api/iam): rename safety + pgxutil follow-ups to #9226 (#9230)
* refactor(util): extract pgx OpenDB + DSN builder into shared pgxutil

The postgres filer store had OpenPGXDB plus duplicated key=value DSN
assembly across postgres/ and postgres2/. Move the connection helper to
weed/util/pgxutil and add BuildDSN so the credential postgres store can
land on the same code path.

filer/postgres/pgx_conn.go keeps OpenPGXDB as a thin alias so postgres2
keeps building unchanged.

* refactor(credential/postgres): use shared pgxutil for connection setup

Replace the bespoke fmt.Sprintf DSN + sql.Open("pgx", ...) path with
pgxutil.BuildDSN + pgxutil.OpenDB so the credential store mirrors the
postgres filer store. This also drops the leaky RegisterConnConfig-style
init in favor of stdlib.OpenDB(*config), which doesn't accumulate
entries in the global pgx config map.

Adds parity knobs the filer store already exposes: sslcrl, and
configurable connection_max_idle / connection_max_open /
connection_max_lifetime_seconds (with the previous hardcoded 25/5/5min
as defaults). Also moves the jsonbParam helper here so other store
files can reuse it. (Helper is also referenced by postgres_identity.go,
which is migrated to it in the next commit.)

* refactor(credential/postgres): use jsonbParam helper across all writers

Consolidate JSONB write handling on the new pgxutil-adjacent helper
jsonbParam(b []byte) interface{}, which returns nil (driver writes SQL
NULL) when the marshaled JSON is empty and string(b) otherwise.

postgres_identity.go: replace the inline 'var fooParam any' /
'fooParam = string(b)' pattern with the helper. Same in CreateUser
and UpdateUser.

postgres_inline_policy.go, postgres_policy.go, postgres_service_account.go,
postgres_group.go: every JSONB writer was still passing []byte. Under
pgx simple_protocol (pgbouncer_compatible=true), []byte is encoded as
bytea and Postgres rejects that against a JSONB column with "invalid
input syntax for type json". Route them through jsonbParam too.

* fix(credential/postgres): rework SaveConfiguration to handle rename + UNIQUE access keys

The IAM rename path (s3api UpdateUser) renames an identity in place
and keeps its access keys. With the previous flow — upsert each user,
then per-user delete-and-insert credentials, then prune absent users —
the renamed user's access keys were still owned by the old row when
the INSERT for the new name ran, tripping credentials.access_key's
global UNIQUE constraint and failing every rename of a user with
credentials.

Reorder the SaveConfiguration body so the prune step runs BEFORE the
credential replace. CASCADE on the old user releases its access keys
in the same transaction, and the new name can then claim them.

While here:
- Replace the per-user loop DELETE FROM users WHERE username = $1 with
  a single DELETE ... WHERE username = ANY($1), one round trip instead
  of N inside the transaction.
- Surface inline-policy CASCADE losses: count user_inline_policies for
  the prune set and emit a Warningf when the count is non-zero so
  rename-driven drops are visible in operator logs (the structural
  fix for renames lives at the IAM layer in a follow-up commit).
- Two-pass credential replace: clear credentials for every user we are
  about to rewrite first, then insert, so an access key can be moved
  between two users in the same SaveConfiguration call.
- credErr := credRows.Err() before credRows.Close() in
  LoadConfiguration — Err() is documented as safe after Close, but
  the leading-capture pattern matches the rest of the file.

* fix(s3api/iam): preserve inline policies when renaming a user

EmbeddedIamApi.UpdateUser renames an identity in place and the caller
persists via SaveConfiguration, which prunes the old username and
CASCADE-drops its rows from user_inline_policies. GetUserPolicy and
ListUserPolicies then return nothing under the new name even though
the API reported success — silent data loss.

Before flipping sourceIdent.Name, list the user's stored inline
policies and re-attach each one under the new name. The subsequent
SaveConfiguration prune still CASCADE-removes the old-name rows; only
the duplicates we just wrote under the new name survive. Adds a
regression test that puts a policy on the old name, renames, and
asserts the policy is readable under the new name.

* perf(credential/postgres): batch the credential clear in SaveConfiguration

The two-pass credential replace was clearing each incoming user's
credentials with its own DELETE statement — N round-trips inside the
transaction. Match the pattern already used for the user prune and
issue a single DELETE FROM credentials WHERE username = ANY($1)
instead.

* refactor(s3api/iam): plumb context through UpdateUser

UpdateUser was synthesizing a fresh context.Background() inside the
inline-policy migration block, which discards the request deadline,
cancellation, and tracing carried by the caller. Add ctx as the first
parameter and pass r.Context() in via the ExecuteAction dispatcher,
mirroring the signature already used by CreatePolicy /
AttachUserPolicy / DetachUserPolicy.

* fix(util/pgxutil): quote DSN values per libpq rules

BuildDSN was concatenating values directly, so any password / cert path
/ database name with a space, single quote, or backslash produced a
malformed connection string and pgx.ParseConfig either errored or
mis-parsed the remainder. Critical now that the helper is shared with
the credential store: mTLS deployments routinely sourcing passwords or
secret-mounted cert paths from a vault are exactly the case where
spaces and quotes show up.

Add quoteDSNValue: empty values and values containing whitespace, `'`,
or `\` are wrapped in single quotes with `'` and `\` escaped per
PostgreSQL libpq rules; plain alphanumeric values pass through
unchanged. Apply it to every variable field in BuildDSN.

Adds a test that round-trips a password containing spaces, quotes and
backslashes through pgx.ParseConfig and confirms the parsed Config
matches the input.

* fix(credential,s3api/iam): atomic UserRenamer to avoid FK violation on rename

The previous IAM rename path called PutUserInlinePolicy(newName, ...)
before SaveConfiguration created the new users row. user_inline_policies
has a non-deferrable FOREIGN KEY (username) REFERENCES users(username),
which Postgres validates at statement time, so every rename of a user
that owned at least one inline policy failed with an FK violation. The
existing memory-store regression test missed it because the memory
backend has no FK enforcement.

Add an optional credential.UserRenamer interface plus a
CredentialManager.RenameUser thin shim that returns (supported, err).

Implement it on PostgresStore as an atomic in-transaction migration:
INSERT the new users row by SELECT-copying from the old, UPDATE
credentials.username and user_inline_policies.username to the new
name (FK satisfied because both rows now exist), then DELETE the old
row. ErrUserNotFound / ErrUserAlreadyExists are surfaced cleanly.

Implement it on MemoryStore by re-binding store.users / store.accessKeys
/ store.inlinePolicies under the new name. Also fixes a small leak in
DeleteUser, which was forgetting to drop the user's inline-policy
bucket.

EmbeddedIamApi.UpdateUser now calls RenameUser first; if the store
implements the interface, that's the whole migration. If it doesn't
(stores without FK enforcement), fall back to the previous
list / get / put copy.

Adds a focused test for MemoryStore.RenameUser that asserts the
identity, the access-key index, and the inline policies all land
under the new name.
2026-04-26 16:31:53 -07:00