* fix(filemeta): add state-aware file info validation
* fix(filemeta): validate shard arithmetic and delete paths
* fix(ecstore): add fallible erasure construction
* fix(ecstore): resolve storage parity per pool
* fix(storage): report heterogeneous erasure layouts
* fix(admin): publish prepared storage config atomically
* fix(storage): harden per-pool parity boundaries
* fix(storage): address pre-PR validation findings
* test(ci): fix strict-topology validation fixtures
* fix(heal): preserve delete markers during repair
* refactor(filemeta): drop unused ValidatedFileInfo witness
ValidatedFileInfo wrapped an unread `_file_info` reference alongside an `Option<ValidatedErasureLayout>`, but only the layout was ever consumed. Return the layout directly from `FileInfo::validate` so the sole production consumer (`LocalDisk::check_parts`) and the two unit tests read it without the extra witness type and lifetime.
No behavior change.
* fix(filemeta): keep compressed and MinIO-migrated tiered objects readable
The new decode-path validation rejected several legitimate on-disk shapes that older RustFS and MinIO-migrated data carry, turning readable objects into FileCorrupt:
- Compressed objects written with an unknown upload size persist a negative per-part actual_size (the documented "unknown size" sentinel that ObjectInfo::get_actual_size already tolerates). validate_collection_contents rejected it via usize::try_from; now a negative actual_size skips shard validation and only real, non-negative sizes are checked.
- MinIO-migrated objects transitioned to a versioned remote tier store the tier version id as a UUID string, not 16 raw bytes. MetaObject::into_fileinfo returned FileCorrupt (main tolerated it as None), making all versions of the object unreadable; MetaDeleteMarker free-version records took a Some(nil) sentinel path with the same effect, which also breaks free-version expiry (remote-tier leak). Both now decode through a shared transitioned_version_id_from_meta_sys helper: 16 raw bytes or a UUID string are accepted, anything else is tolerated as None instead of failing the read.
Regression tests updated to assert the readable/compat behavior, with new tests covering MinIO string-form recovery.
* fix(scanner): build the delete-marker test fixture without erasure geometry
get_size_counts_delete_markers_separately_from_versions built its delete marker with `FileInfo::new(object, 1, 1)`, which attaches erasure geometry (data=1/parity=1/distribution). This PR classifies versions by shape via `is_storage_delete_marker()` (no geometry) rather than the raw `deleted` flag, so a geometry-bearing "delete marker" is correctly serialized as a purge-pending payload Object and counted as a version — CI saw summary.versions=3, expected 2.
Real delete markers carry no erasure geometry (delete paths build them as `FileInfo { deleted: true, ..Default::default() }`), so construct the fixture the same way. It then classifies as a storage delete marker and the counts (versions=2, delete_markers=1) hold. This keeps the PR's more-correct classification, which prevents a purge-pending object's geometry from being dropped when serialized as a bare delete marker.
* docs(changelog): note per-pool parity fix and storage-class startup upgrade caveat
Records the #4801 per-pool erasure parity fix under Fixed, and documents the upgrade behavior where a persisted storage class that a small or heterogeneous pool cannot satisfy now fails startup — with the RUSTFS_STORAGE_CLASS_STANDARD recovery steps. Docs-only; covers R4 from the on-disk compatibility audit.
* fix(heal): report parity from erasure geometry, not is_valid()
heal_object set HealResultItem.parity_blocks via `if lfi.is_valid()`, which was missed by the migration of the other quorum/metadata predicates. With the new `is_valid()` semantics (full payload validation; delete markers now return false), a delete marker or a geometry-bearing version with a benign collection quirk would misreport parity as the pool default instead of its own. Use `has_valid_erasure_geometry()` — the narrow "does this carry erasure geometry" predicate the rest of the migration uses — so reporting matches the object's actual layout. Reporting-only; no data-path change.
* fix(filemeta): do not silently serialize a non-canonical deleted FileInfo as an Object
`From<FileInfo> for FileMetaVersion` classifies by `is_storage_delete_marker()` (shape), which correctly routes canonical delete markers to Delete and purge-pending payloads (deleted=true with real erasure geometry) to Object. But a `deleted` FileInfo that is neither a canonical marker nor a valid erasure payload would silently serialize as a zero-geometry MetaObject that later fails `validate_for_metadata_read`. Write paths validate first (`validate_for_erasure_write` / `validate_for_metadata_read`), so this is a caller bug; `From` is infallible, so surface it with a structured `warn!` on the malformed branch instead of writing corrupt metadata silently. Legitimate purge-pending objects (valid geometry) are unaffected — the guard only fires for `deleted && !has_valid_erasure_geometry()`.
* test(filemeta): assert real historical xl.meta versions pass metadata-read validation
Empirical companion to the code-reasoned decode-tolerance invariants (docs/architecture/erasure-coding.md §11) and the rolling-upgrade / MinIO-migration compatibility concern: the tightened `validate_for_metadata_read` runs on every local disk read and peer-RPC-decoded FileInfo, so it must accept every version of real historically-written xl.meta, never reject it as FileCorrupt.
Loads five real fixtures — MinIO small-inline, MinIO versioned (two object versions + a delete marker), MinIO large multipart, a legacy V1 (xl.json-derived) object, and a legacy meta_ver 2 object — decodes every version with parts materialized, and asserts validate_for_metadata_read() is Ok for each. Reverting the tolerant handling (delete-marker shape, legacy per-part checksums, string/short transitioned-versionID, negative actual_size) turns this red.
* fix(ci): remove duplicate storage test re-exports
---------
Co-authored-by: overtrue <anzhengchao@gmail.com>
* chore(deps): remove redundant dependency features
Remove manifest feature entries that are implied by other requested features in the same dependency declaration.
Verified that the resolved Cargo feature graph is unchanged after the cleanup.
Co-Authored-By: heihutu <heihutu@gmail.com>
* chore(deps): narrow tokio and reqwest features
Co-Authored-By: heihutu <heihutu@gmail.com>
---------
Co-authored-by: heihutu <heihutu@gmail.com>
Move workspace-level dependency feature lists into the member crates that consume each dependency while keeping required default-features flags at the workspace root.
Also refresh starshard to 2.2.2 via cargo update and cargo upgrade --exclude ratelimit.
Co-authored-by: heihutu <heihutu@gmail.com>
feat(targets): add an opt-in NATS JetStream publish path for the notify and audit targets
The NATS notify and audit targets publish through NATS Core, which returns
before the server has durably accepted the message. A broker restart or a
connection drop between the publish and the flush loses the event, even though
the send queue has already cleared it, and no acknowledgement gates that clear.
An opt-in JetStream publish path clears a queued event only after the server
returns a durable PublishAck, so delivery is at-least-once across a broker
restart or a reconnect. It applies to both the notify and audit NATS targets, is
off by default, and is byte-identical to the NATS Core path when disabled.
The path includes durable store-and-forward, a stable dedup id sent as the
Nats-Msg-Id header so a replayed event is collapsed by the stream duplicate
window, pre-flight stream validation, and a bounded failed-events store for
terminally-failed and retry-exhausted events. Three configuration keys per
target select it: JETSTREAM_ENABLE, JETSTREAM_STREAM_NAME, and
JETSTREAM_ACK_TIMEOUT_SECS, under the RUSTFS_NOTIFY_NATS_ and RUSTFS_AUDIT_NATS_
prefixes.
The on-disk batch filename separator changes from colon to underscore so
batch names are valid on Windows filesystems, with transparent read-back
of files written under the previous separator. The migration affects the
shared queue store for every target type and lands with this feature
because the store gains its first Windows-exercised paths here.
Co-authored-by: houseme <housemecn@gmail.com>
* fix(obs): open cleaner compression source with O_NOFOLLOW
The compressor opened the source log via File::open, which follows a
symlink at the final path component. Between the scanner selecting a
regular file and this open, an attacker with write access to the log
directory could swap the entry for a symlink (TOCTOU) pointing at, say,
/etc/shadow, whose contents would then be copied into an archive. Open
the source with O_NOFOLLOW on Unix so such a swap fails with ELOOP; the
temp/archive path already refused symlinks, this closes the source side.
Refs rustfs/backlog#1210
Co-Authored-By: heihutu <heihutu@gmail.com>
* fix(obs): recompress instead of trusting leftover cleaner archives
archive_header_ok only checked the first 2-4 magic bytes before treating
an existing .gz/.zst as a completed prior result and letting the caller
delete the source log. A file with valid magic but a truncated or forged
body passes that check, so an attacker with write access to the log
directory (or a crashed prior run) could plant such a stub and make the
cleaner delete the real log without ever producing a usable archive —
silent audit-data loss.
Chosen fix: stop trusting cross-process leftovers entirely and always
recompress the source in this pass, rather than fully decoding every
leftover to validate it. Full-decode validation would add real CPU cost
and decode-bug surface for a rare crash-recovery case; the existing
atomic create_new+rename already overwrites whatever sits at the archive
path (a planted symlink is replaced, never followed) with a freshly
written, fsync'd archive, so a partial/forged leftover can never gate
source deletion. This is the lowest-regression option.
Refs rustfs/backlog#1211
Co-Authored-By: heihutu <heihutu@gmail.com>
* fix(object-data-cache): cap memory-gate reservation at cache growth headroom
The memory gate subtracts `admitted_since_refresh` from the snapshot's
available bytes so a burst arriving faster than the 5 s refresh cannot
over-allocate. That counter is GROSS: it only rolls over on the refresh and
never rolls back when a fill is later evicted, cancelled, or loses the
invalidation race. Under sustained high-throughput churn (net footprint flat
and far below `max_capacity`) the raw counter balloons past the memory the
cache actually holds, so `effective_available` collapses and the gate reports
false memory pressure — skipping the hottest fills with SkippedMemoryPressure
until the next 5 s refresh. This only lowers hit rate; it never returns wrong
data and self-heals each refresh.
Fix direction 1 (minimal regression): cap the reservation deduction at the
cache's own growth headroom (`max_capacity - weighted_size()`) instead of
letting the unbounded gross counter shrink the system-available budget. The
cache can never hold more than `max_capacity`, so a burst adds at most that
headroom of real memory before moka evicts to stay bounded (net-zero churn
beyond that point) — capping the deduction there keeps the reservation honest
without treating gross churn as growth. Chosen over net-accounting (direction
2, releasing bytes on every failure/cancel/eviction path) because that only
plugs the leak on failed fills and would not address the core defect: churn of
*successful* insert/evict fills over the 5 s window. It also touches only the
gate plus one call site rather than every failure path in moka_backend.
The cap only ever raises `effective_available`, so real memory pressure (a low
snapshot at refresh) still suppresses fills; when the cache is at capacity the
headroom is 0 and the deduction vanishes, correctly reflecting net-zero churn.
`MokaBackend` now stores `max_capacity` and passes the live headroom into
`allows_fill`. Adds targeted gate tests: gross churn far above headroom no
longer falsely suppresses, yet the reservation still bounds a burst while the
cache can genuinely grow.
Refs rustfs/backlog#1212
Co-Authored-By: heihutu <heihutu@gmail.com>
* test(ecstore): assert native O_DIRECT path runs in uring read test
uring_preserves_o_direct_for_eligible_reads only compared bytes through
LocalDisk::read_file_mmap_copy. On a filesystem that rejects O_DIRECT the
read silently degrades to the buffered StdBackend fallback and the byte
check still passes, so the test could go green without the native
read_at_direct path ever executing -- a vacuous pass.
Add a per-disk native_direct_reads counter on UringBackend, incremented
only when pread_uring_direct completes, and rebuild the test to drive a
real UringBackend's pread_bytes and assert the counter is non-zero (every
eligible read went through the native tier). When io_uring or O_DIRECT is
unavailable on the host filesystem (restricted CI runners, tmpfs), the
test skips loudly via eprintln instead of asserting a tautology, while
still checking byte-correctness on whatever tier served the read.
The counter also gives a gray release a positive signal that the O_DIRECT
tier is serving reads, not just a fallback count.
Refs rustfs/backlog#1213
Co-Authored-By: heihutu <heihutu@gmail.com>
* fix(ecstore): warn + count read-time EINVAL on native O_DIRECT reads
classify_direct_read_error is only reached from the read side: the
O_DIRECT open in pread_uring_direct already succeeded (an open-time
refusal is handled earlier as DirectOpenError::ODirectRefused). So an
EINVAL/EOPNOTSUPP arriving here is a read-time error on an fd the kernel
accepted for O_DIRECT -- far more likely an alignment bug in the aligned
read path than an unsupported filesystem. The old code latched the disk's
native path off with only a once-per-disk debug trace, hiding a potential
correctness regression behind a silent buffered-read downgrade.
Diagnostics only: the fallback behaviour is unchanged (the native path is
still latched off and the caller still reads via StdBackend). This adds a
rustfs_io_uring_direct_read_einval_total counter and promotes the
once-per-disk trace from debug to warn so an operator can see an alignment
regression instead of an unexplained latency/CPU shift.
Refs rustfs/backlog#1214
Co-Authored-By: heihutu <heihutu@gmail.com>
* docs(ecstore): document data-blocks-first default and its tail-latency cost
DEFAULT_RUSTFS_GET_DATA_BLOCKS_FIRST_READER_SETUP is true and must stay
true: deferred-parity is the deliberate, already-rolled-out full-object
GET default from backlog#1159/#923. Flipping it back to false in code
would silently revert that rollout for every deployment that has not set
the env var, so this commit only documents -- no behaviour change.
The added notes explain what data-blocks-first does (schedule data shards
up front, engage parity lazily on a missing/corrupt data shard), the known
trade-off (parity is engaged late, so a slow-but-not-dead data drive
raises GET p99 because the faster parity shards are not raced against it
until a data shard is declared missing), and the operational rollback
switch (RUSTFS_GET_DATA_BLOCKS_FIRST_READER_SETUP=false), which is
intentionally an env override rather than a code default change.
No metric was added: the low-risk observability hook for "slow data drive
engaged deferred parity" would live at the deferred-stripe engage point,
which is out of this file's scope; this change stays documentation-only to
avoid touching the hot GET path.
Refs rustfs/backlog#1215
Co-Authored-By: heihutu <heihutu@gmail.com>
* docs(ecstore): document wide-directory walk stall hazard and tuning
list_dir enumerates a whole directory in one os::read_dir call (count =
-1), and the walk caller bounds that entire enumeration with the per-read
stall budget (default 5s) as if it were a single read. For a wide, flat
prefix -- one directory holding millions of immediate children -- a single
readdir can exceed the budget on a healthy disk, trip DiskError::Timeout,
and surface as a ListObjects 500 quorum failure though the drive is fine
(a #2999 sub-class).
This is documented, not rewritten: turning the one-shot readdir into a
streaming/batched enumeration that refreshes the stall deadline between
chunks is an architecture-level change with high regression surface
(ordering, the count contract, quorum merge) and belongs in a separate
follow-up. The supported mitigation today is operational, so the comments
point wide-directory deployments at RUSTFS_DRIVE_WALKDIR_STALL_TIMEOUT_SECS
and the high-latency drive-timeout profile, which widen the budget with no
code change. Notes were added at list_dir, the scan_dir call site, and
get_drive_walkdir_stall_timeout. No behaviour change.
Refs rustfs/backlog#1216
Co-Authored-By: heihutu <heihutu@gmail.com>
* docs(ecstore): document consumer-peek vs producer-stall coupling
In list_path_raw the consumer's peek_timeout is drawn from the same source
and same value (walkdir_stall_timeout, default 5s) as the producer-side
walk stall budget, but the two measure different things: the producer
stall bounds a single drive read, while the consumer peek bounds the gap
between two ADJACENT entries arriving from a reader. Because they share a
value, the consumer cannot wait meaningfully longer for the next entry
than the producer is allowed to spend producing one. Walking a region
dense with non-listable internal items can make a HEALTHY drive miss the
budget between visible entries; the consumer then declares it stalled and
detaches it, dropping a good drive from the merge and capping the "large
prefix succeeds" guarantee.
Documented, not decoupled: giving the consumer peek an independent,
strictly-larger budget would cut these false detaches but equally delays
detaching a genuinely dead drive and shifts listing tail-latency
semantics, so it wants soak data before changing the default. The comment
records the invariant any such follow-up must keep -- consumer peek >=
producer stall, never stricter -- so it can never fail a drive before the
producer would. No behaviour change.
Refs rustfs/backlog#1217
Co-Authored-By: heihutu <heihutu@gmail.com>
* fix(io-metrics): add time-based trigger for low-IOPS latency percentiles
Percentiles were recomputed only every 128 IOs and seeded to 0, so a
low-traffic deployment exported p95/p99 = 0/stale for a long time after
startup. Add a 10s wall-clock trigger alongside the count throttle so the
first recompute can fire before 128 samples accrue. Hot-path per-op mean
update is unchanged.
Refs rustfs/backlog#1218
Co-Authored-By: heihutu <heihutu@gmail.com>
* test(e2e): cover codec-streaming parity under fault injection and NoSuchKey
The codec-streaming compat A/B previously ran only against a healthy
4-disk EC set with successful full GETs: the DiskFaultHarness was
constructed but never faulted, the error path was untested, and the
range assertion silently compared legacy-vs-legacy (ranges always fall
back to the duplex path), overstating what it proved.
Add two genuinely-failable scenarios reusing the existing harness and
fixtures:
- Parity reconstruction A/B: take one data disk offline and re-run the
full object matrix on both phases while the EC 2+2 set rebuilds each
large object from the surviving shards. Assert codec == legacy
byte-for-byte (sha256) and header-for-header, and assert the codec
phase served the reconstructed objects with zero duplex-pipe fallback
(the reader gate is drive-health-independent, so the codec fast path
is really exercised through reconstruction).
- NoSuchKey negative path: compare the HTTP status + S3 error code of a
missing-key GET across the legacy and codec phases and require them to
be identical (404/NoSuchKey), guarding against the codec env
perturbing the error path.
Also clarify the range-phase comment so it is not misread as
codec-range correctness coverage: both sides are served by the same
legacy range path, so the assertion only proves ranges keep working and
keep falling back to legacy with the gates open.
Verified: cargo check/--no-run pass and the test passes locally
(1 passed; dup_codec=0 confirms the codec path ran).
Refs rustfs/backlog#1219
Co-Authored-By: heihutu <heihutu@gmail.com>
* ci(ecstore): exercise native O_DIRECT read path on an ext4 loopback
The uring-integration leg ran on the runner's default TMPDIR, which may sit
on tmpfs/overlayfs where open(O_DIRECT) fails and the native read_at_direct
path silently latches off to the aligned StdBackend fallback. Mount a
dedicated ext4 loopback and point TMPDIR at it so the real io_uring dep
(bumped git->0.1.0->0.2.0->0.2.1) and the native O_DIRECT read path are
actually covered rather than validated only by signature diffing.
Refs rustfs/backlog#1220
Co-Authored-By: heihutu <heihutu@gmail.com>
---------
Co-authored-by: heihutu <heihutu@gmail.com>
* fix(obs/cleaner): fsync archive and log dir before deleting source logs
OLC-01: the compression path flushed the BufWriter but never synced the
archive data or the parent directory before renaming, and the source was
then unlinked with no durability barrier. A crash after rename but before
the page cache reached disk could leave a truncated/zero-length archive
while the source was already gone — permanent log/audit data loss. Because
the archive is always renamed to a brand-new name (guaranteed by the
existing exists() guard), ext4 auto_da_alloc does not mask this.
Hand the underlying File back from the writer closure, sync_all() it before
rename, fsync the parent directory, and fsync the log directory after the
unlinks so a delete cannot be reordered ahead of the archive it justified.
Guard the temp file with an RAII cleanup so an early return or panic cannot
leak a *.tmp orphan.
Ref: rustfs/backlog#1194 (audit rustfs/backlog#1193)
Co-Authored-By: heihutu <heihutu@gmail.com>
* fix(obs/cleaner): create compression temp file with O_EXCL and O_NOFOLLOW
OLC-03: the temp archive was opened with File::create at a predictable
`<source>.gz.tmp` path with no O_EXCL/O_NOFOLLOW, so an actor with write
access to the log directory could pre-plant that path as a symlink and have
the compressor follow it — truncating and overwriting an arbitrary external
file, then chmod-ing it to the source log's mode. This mirrors the symlink
refusal already enforced on the deletion path (secure_delete).
Route temp creation through create_tmp_archive(), which uses create_new
(O_CREAT|O_EXCL) to refuse a pre-existing entry and, on Unix, O_NOFOLLOW to
refuse a symlink at the final path component.
Ref: rustfs/backlog#1196 (audit rustfs/backlog#1193)
Co-Authored-By: heihutu <heihutu@gmail.com>
* fix(obs/cleaner): create compression temp file with restrictive mode
OLC-06: File::create left the temp archive world-readable (0644 & ~umask)
for the entire duration of compressing a large log, exposing the full
plaintext of a possibly-0600 audit log on shared hosts until the mode was
copied only after the write completed. Pass the source mode into
create_tmp_archive and open the temp file with it (default 0600) so it is
restrictive from creation; the post-write chmod still tightens/matches the
source mode exactly.
Ref: rustfs/backlog#1199 (audit rustfs/backlog#1193)
Co-Authored-By: heihutu <heihutu@gmail.com>
* fix(obs/cleaner): validate existing archive before skipping recompression
OLC-02: the idempotency guard used Path::exists() (which follows symlinks)
and trusted whatever it found, then the caller deleted the source. A planted
`<archive>.gz` symlink, or a zero-length/truncated archive left by a crashed
run (OLC-01), would green-light deleting the source with no valid backup —
data loss / log destruction.
Replace exists() with symlink_metadata (no follow) and only treat the entry
as a completed prior result when it is a regular, non-empty file whose header
matches the codec magic (gzip 1f 8b / zstd 28 b5 2f fd). Anything else falls
through to recompression, whose atomic create_new+rename replaces the bad
entry (a symlink is replaced, never followed or deleted through).
Ref: rustfs/backlog#1195 (audit rustfs/backlog#1193)
Co-Authored-By: heihutu <heihutu@gmail.com>
* fix(obs/cleaner): stop dry-run overstating reclaimed bytes for compression
OLC-08: in dry-run, compress_with_writer returned output_bytes = 0, so
projected_freed_bytes = input and delete_files reported the full input as
freed. A real run keeps the archive on disk (freed = input - archive), so
dry-run overstated reclaim by the whole archive footprint. Estimate the
archive with a deliberately conservative ratio so the projection never
exceeds what a real run reclaims.
Ref: rustfs/backlog#1201 (audit rustfs/backlog#1193)
Co-Authored-By: heihutu <heihutu@gmail.com>
* fix(obs/cleaner): make freed-byte accounting resilient; document steal metric
OLC-12: input/output byte sizes were read via metadata().unwrap_or(0), which
silently reports 0 on failure and skews freed-byte metrics (input - 0 = full
input, overstating reclaim). Use the copy() byte count as the authoritative
input size and, when the archive metadata read fails, conservatively assume
no savings instead of 0. Also document that the steal_success_rate counts
only victim steals (batch = one success), so it reads as a relative
rebalancing signal, not absolute task acquisition.
Ref: rustfs/backlog#1205 (audit rustfs/backlog#1193)
Co-Authored-By: heihutu <heihutu@gmail.com>
* fix(obs/cleaner): preserve level-0 semantics, allow zstd 22, log effective levels
OLC-09: build() and the codec calls clamped gzip/zstd levels to [1,9]/[1,21],
silently rewriting gzip level 0 (store) and zstd level 0 (codec default) to 1
and blocking the legal zstd maximum of 22. Clamp to [0,9]/[0,22] so those
meanings survive, and echo the effective (post-clamp) levels in the startup
log via new effective_gzip_level()/effective_zstd_level() getters so the log
matches what actually runs.
Ref: rustfs/backlog#1202 (audit rustfs/backlog#1193)
Co-Authored-By: heihutu <heihutu@gmail.com>
* fix(obs/cleaner): bound compressed archives by byte cap; warn on retention=0
OLC-04: archive expiry was gated on compressed_file_retention_days > 0, so
retention=0 disabled it entirely while compression kept producing archives,
and max_total_size_bytes only ever bounded uncompressed logs — unbounded disk
growth. Replace select_expired_compressed with select_archives_to_delete,
which applies age expiry (when retention is on) and, regardless of retention,
trims the oldest archives until the set fits under max_total_size_bytes. Also
warn at startup when compression is on with retention=0 so the "keep forever"
semantics are not mistaken for "delete immediately".
Ref: rustfs/backlog#1197 (audit rustfs/backlog#1193)
Co-Authored-By: heihutu <heihutu@gmail.com>
* fix(obs/cleaner): warn on invalid exclude glob instead of dropping silently
OLC-05: build() dropped unparseable exclude globs via filter_map(...ok()), so
a typo (or a literal comma splitting a char-class in the config string) turned
"protect this file" into "delete this file" with no signal. Log a warning per
rejected pattern with the raw string and parse error so the misconfiguration
is visible.
Ref: rustfs/backlog#1198 (audit rustfs/backlog#1193)
Co-Authored-By: heihutu <heihutu@gmail.com>
* perf(obs/cleaner): backoff idle workers, cap worker count, lower small-host floor
OLC-11: the work-stealing loop re-spun on Steal::Retry with no yield and used
yield_now on the empty path, burning CPU during redistribution windows;
worker_count had no upper bound so a mis-set parallel_workers over a directory
of thousands of logs could spawn thousands of threads; and
default_parallel_workers forced >=4 workers even on 1-2 vCPU hosts. Use
crossbeam_utils::Backoff (spin->yield, reset on work) on the idle paths, clamp
worker_count to MAX_PARALLEL_COMPRESS_WORKERS, and lower the default floor to 1.
Ref: rustfs/backlog#1204 (audit rustfs/backlog#1193)
Co-Authored-By: heihutu <heihutu@gmail.com>
* fix(obs/cleaner): warn when active-file guard is disabled by empty filename
OLC-13 (defense-in-depth): the scanner protects the live log purely by exact
filename equality against active_filename. An empty active_filename silently
disables that protection, so a non-empty file_pattern could make the live log
a deletion candidate via the public builder. Warn in build() when that unsafe
combination is configured. The audit's "never delete the newest match"
structural guard is intentionally not implemented: it would conflict with the
legitimate keep_files=0 semantics (purge all rotated logs). The naming
contract is instead locked by regression tests (OLC-14).
Ref: rustfs/backlog#1206 (audit rustfs/backlog#1193)
Co-Authored-By: heihutu <heihutu@gmail.com>
* fix(obs/cleaner): warn on unknown algorithm/match_mode, echo match_mode
OLC-07: from_config_str silently fell back to defaults for unrecognized
compression algorithm and match mode (any non-"prefix" value became Suffix),
hiding operator typos like "prefixx" that could make the cleaner match no
rotated logs. Warn on a non-empty unrecognized value in both parsers, and
echo the resolved match_mode in the startup log alongside the algorithm.
Ref: rustfs/backlog#1200 (audit rustfs/backlog#1193)
Co-Authored-By: heihutu <heihutu@gmail.com>
* fix(obs/cleaner): derive orphan .tmp suffixes and exempt them from min age
OLC-10: orphan `*.gz.tmp`/`*.zst.tmp` cleanup was gated by min_file_age_seconds
(default 3600), so crash-left orphans lingered up to an hour, and the tmp
suffix list was hardcoded rather than derived from compressed_suffixes() — a
new codec would leave `*.<ext>.tmp` orphans the scanner never recognizes.
Derive the temp suffix from CompressionAlgorithm::compressed_suffixes(), and
gate orphan removal on a small fixed grace window instead of min_file_age
(orphans are never live-written after the rename that would promote them).
Ref: rustfs/backlog#1203 (audit rustfs/backlog#1193)
Co-Authored-By: heihutu <heihutu@gmail.com>
* test(obs/cleaner): cover symlink, archive expiry, idempotency, and edge cases
OLC-14: add regression tests for the previously-untested safety/correctness
branches — symlink rejection (external target never deleted), archive age
expiry vs fresh retention, archive byte-cap trim with retention disabled,
gz/zst classification, max_single_file_size selection, min_age protecting a
fresh non-empty log, active-file exclusion when the active name also matches
the pattern, invalid exclude glob not aborting build, dry-run + compression
creating no archive, gzip round-trip validity, and the idempotent-archive
branch trusting a valid prior archive.
Ref: rustfs/backlog#1207 (audit rustfs/backlog#1193)
Co-Authored-By: heihutu <heihutu@gmail.com>
* style(obs/cleaner): apply rustfmt and collapse nested if (clippy)
Formatting-only cleanup over the audit fix series: rustfmt normalization of the
multi-line expressions introduced in compress.rs/core.rs, plus collapsing the
delete_files directory-fsync into a single let-chain to satisfy
clippy::collapsible_if. No behavior change.
Co-Authored-By: heihutu <heihutu@gmail.com>
* refactor(obs/cleaner): collapse redundant source stats in compression path
The per-issue fixes to compress_with_writer accumulated three metadata()
syscalls on the source in the real compression path: an input_bytes read that
was immediately shadowed by the copied byte count (a dead read), a source_mode
read (OLC-06), and the pre-OLC-06 post-write chmod re-reading the same mode.
Collapse to a single fd-based read — move the dry-run input_bytes read into
the dry-run branch, read source_mode from the already-open fd (no path stat,
no TOCTOU), and reuse it for the post-write chmod. Behavior is unchanged
(same inode's mode, written for input size); 3 source stats -> 1.
Co-Authored-By: heihutu <heihutu@gmail.com>
* chore(obs/cleaner): fix typo flagged by CI (mis-set -> misconfigured)
Co-Authored-By: heihutu <heihutu@gmail.com>
---------
Co-authored-by: heihutu <heihutu@gmail.com>
* fix(obs): prevent rolling log stdout aliasing
* fix(ecstore): bound hot-path tracing payloads
* test(logging): guard service and disk log invariants
* fix(obs): silence useless_conversion on st_dev for Linux clippy
rustix's Stat.st_dev is u64 on Linux/glibc, making u64::try_from a no-op
that trips clippy::useless_conversion under -D warnings. The conversion is
still needed on macOS/BSD where st_dev is a signed dev_t, so suppress the
lint on that line rather than dropping the portable fallible conversion.
* fix(logging): keep stdout sink validation portable (#4769)
* fix(obs): keep stdout device conversion portable
* docs(logging): update single-writer plan status
---------
Co-authored-by: overtrue <anzhengchao@gmail.com>
Co-authored-by: houseme <housemecn@gmail.com>
Six doc-comments on `OtelConfig` fields stated defaults that disagreed
with the constants the runtime actually applies in
`extract_otel_config_from_env`. Correct them to match:
- profiling_export_enabled: false -> true (DEFAULT_OBS_PROFILING_EXPORT_ENABLED)
- sample_ratio: 0.1 -> 1.0 (SAMPLE_RATIO)
- meter_interval: 15 -> 30 (METER_INTERVAL)
- logger_level: info -> error (DEFAULT_LOG_LEVEL)
- log_rotation_time: daily -> hourly (DEFAULT_LOG_ROTATION_TIME), and
document the full minutely/hourly/daily set plus the daily fallback
- log_cleanup_interval_seconds: 21600 -> 1800 (DEFAULT_OBS_LOG_CLEANUP_INTERVAL_SECONDS)
Doc-comment only; no behavior change.
`report_metrics` runs on every metrics collection cycle and did three things it
did not need to, for every metric, every cycle:
- interned `metric.name`/`metric.help` through a `Mutex<HashMap>` even when the
`Cow` was already `Borrowed(&'static str)` (the common case for statically
named metrics);
- re-ran `describe_*!` (which re-locks the recorder's metadata map) although the
metadata never changes;
- allocated a fresh `Vec<(String, String)>`, cloning every label key and value,
even though `metric.labels` is already `[(&'static str, Cow<'static, str>)]`.
Now: names/help resolve to `&'static str` without touching the intern cache when
already borrowed; each metric is described once (tracked in a `HashSet`); and the
recorder is fed `&metric.labels` directly, removing the per-cycle label clone.
No metric names, help, label keys/values, or emitted values change. Verified by
building rustfs-obs and running the report unit tests (the `metrics` macro
accepts the borrowed label slice directly).
Addresses rustfs/backlog#1185 (P3, report path).
Co-authored-by: heihutu <heihutu@gmail.com>
The ecstore/global-state migrations are done (backlog#815, #939, #1052 all
closed). Review of every migration-era test/gate measure found three things
actually retirable or broken — everything else is a live anti-regression
guard and stays.
Remove:
- scripts/check_metrics_migration_refs.sh — guards a migration that
finished: rustfs_metrics:: has zero hits, the metrics crate no longer
exists, and the script was never wired into CI or make (only reference
was one line in config-model-boundary-adr.md, also removed).
- crates/obs init_metrics_collectors — the "backward-compatible alias kept
during migration" the removed script was guarding. Zero callers; pure
delegate to init_metrics_runtime.
Archive (docs/superpowers/plans/, continuing the 2026-07 convention,
with the standard archived banner):
- startup-timeline.md, scheduler-baseline.md,
profiling-numa-capability-inventory.md,
kms-development-defaults-inventory.md — one-shot snapshots whose only
consumer is the already-archived migration-progress ledger (their
same-dir links there start resolving again after the move); zero script
pins; fed the closed backlog#660/#665 architecture-review ledger.
Fixed the one outbound link (startup-timeline -> readiness-matrix) that
the move would have broken — check_doc_paths.sh deliberately does not
scan plans/, so nothing else would have caught it.
Wire (found orphaned by the same review):
- scripts/check_extension_schema_boundaries.sh guards a live contract
crate but was never invoked anywhere. Add lint-fmt.mak target, include
in pre-commit/pre-pr/dev-check, add ci.yml Quick Checks step (job
already installs ripgrep), sync the CONTRIBUTING.md enumerated list,
and harden the script against a silently-passing rg probe when src/
is missing.
Keep (verified live, documented so the next cleanup pass does not repeat
this analysis):
- scripts/check_architecture_migration_rules.sh — added a header stating
it is a permanent boundary guard, not retirable migration scaffolding;
'migration' in the name is historical.
- check_migration_gate_count.sh + floor, delete-marker e2e proof, all
pinned docs, compat-cleanup-register sync, remaining inventories
(referenced by live docs).
Verification: all 7 guard scripts pass, actionlint clean,
cargo check --workspace (excl e2e) clean, cargo fmt --check clean.
Adversarially reviewed by two independent skeptic passes; their 7
findings (alias left behind, broken outbound link, missing banners,
wrong backlog attribution, CONTRIBUTING drift, rg exit-2 hole, missing
header rationale) are all folded in.
#4663 added a full S3 upload path (config fields + env parsing + wiring), then
reverted the wiring when its dependency turned out to carry RUSTSEC advisories
(D9-14). The revert stopped at enabled.rs and left the config layer half torn
down: `Dial9Config` still carried `s3_bucket`/`s3_prefix` with no consumer, plus
a dead `s3_upload_requested()`, and `Dial9SessionGuard::config()` was likewise
never called. All three are zero-consumer dead code.
Since S3 upload cannot be built at all, the config type should not model it.
Drop the two fields and both accessors. `from_env` still reads the S3 env vars
and warns about them (an operator who set them deserves to know why they do
nothing — that warning is deliberate and stays), but drops the values instead
of storing configuration nothing reads.
While here, collapse `from_env`'s two `record_config` calls into one by
extracting `from_env_enabled`, so the enabled/disabled paths share a single
publish point.
No behavior change: the S3 warning fires identically, and every other field is
untouched. Net -13 lines, and `Dial9Config` drops from 8 fields to 6.
Co-authored-by: heihutu <heihutu@gmail.com>
* fix(obs): remove the dial9 task-dump switch that could never do anything
Measured on a bench host (Linux x86_64) against the code merged in #4663: with
`RUSTFS_RUNTIME_DIAL9_TASK_DUMP_ENABLED=true`, a `dial9-taskdump` build, and
`--cfg tokio_taskdump`, dial9 recorded **zero** TaskDump events.
dial9 captures a task dump only for futures it wrapped itself — those spawned
through `dial9_tokio_telemetry::spawn`, which is where `TaskDumped<F>` gets
applied. `tokio::spawn` gets no wrapper, and RustFS spawns with `tokio::spawn`
throughout. Same workload, same binary, only the spawner changed:
tokio::spawn -> 0 dumps
dial9::spawn -> 14709 dumps, all with callchains
Upstream documents this (README line 151) and tracks the doc gap at
dial9-rs/dial9#477. I did not read it before wiring `with_task_dumps` in #4663,
and so shipped exactly the kind of lying configuration knob that PR set out to
delete. Remove it: the two environment variables, the config fields, the
`with_task_dumps` call, and the `dial9-taskdump` feature — whose only effect was
to constrain the build to Linux while recording nothing.
Re-adding it only makes sense together with migrating the paths under
investigation to dial9's spawner. Tracked as D9-16 in rustfs/backlog#1157.
Also drop the `--cfg tokio_taskdump` requirement from the Makefile. Measured:
dumps are captured with and without it (14709 vs 14674, within noise), and
upstream never asked for it. That requirement was mine, invented and untested.
Cargo.lock loses tokio's `backtrace` dependency, which `tokio/taskdump` pulled in.
Co-Authored-By: heihutu <heihutu@gmail.com>
* docs(obs): replace guessed dial9 retention numbers with measured ones
Three corrections, all to claims I wrote in #4663 without measuring them.
"Under a high poll rate that budget can wrap in minutes" was a guess. Measured on
a single-node 4-drive cluster under warp mixed (66 MiB/s, 110 obj/s, 32 concurrent):
13023 events/s, 0.16 MiB/s, so the default 1 GiB budget wraps after roughly 108
minutes. Even at ten times the throughput that is ~11 minutes. State the measured
rate and how to scale it instead.
dial9 was described as the tool for drive stalls. It is not. RustFS does disk I/O
on the blocking pool and through io_uring, never on an async worker, so a slow
drive never lengthens a poll. Injecting 200 ms of latency on one of four drives
cut throughput by 64% and left the poll distribution unchanged (polls >= 5 ms:
49 -> 56; p999: 2.67 ms -> 2.75 ms). Enabling dial9's CPU and sched profilers
does not help: sched events are per-worker only, and the CPU profiler samples
on-CPU while a stalled drive is an off-CPU wait. Say so plainly, and point at
the `rustfs_io_*` metrics instead.
What dial9 *is* good for, on the same traces: single polls of 418-625 ms with no
fault injected at all — real worker stalls nothing else in the obs stack surfaces.
Lead with that.
Also link the two upstream issues filed for the gaps we documented:
dial9-rs/dial9#658 (writer death unobservable) and #659 (worker-s3 CVEs).
Measurements: rustfs/backlog#1157 (D9-11, D9-13, D9-18).
Co-Authored-By: heihutu <heihutu@gmail.com>
---------
Co-authored-by: heihutu <heihutu@gmail.com>
fix(ecstore): make body-cache hook re-registrable + add e2e regressions
ODC-21 (backlog#1126): the GET body-cache hook lived in a first-wins
OnceLock. When AppContext is rebuilt (config reload, test re-init) a fresh
ObjectDataCacheAdapter is constructed and re-registered, but the OnceLock
kept ecstore's GET probe pointed at adapter #1 while every usecase-layer
fill and invalidation targeted adapter #2 — silently degrading the feature
to a 0% hit rate with no error, log, or metric, and stranding entries in the
unreachable cache until their TTL.
Replace the slot with RwLock<Option<Arc<dyn GetObjectBodyCacheHook>>> so
re-registration atomically swaps to the newest adapter, and log at WARN when
a swap replaces a *different* instance (Arc::ptr_eq). RwLock over
ArcSwapOption because arc-swap's RefCnt is impl<T> (Sized, thin *mut T) and
cannot hold an Arc<dyn Trait> without a sized newtype wrapper; the probe
reads the slot once per full-object GET but only clones an Arc, negligible
next to the metadata quorum fan-out already done before the probe. Add a
test-only clear_get_object_body_cache_hook so tests register/unregister
deterministically.
With the hook now re-registrable, add true end-to-end regressions that drive
get_object_reader (not the full_object_plaintext_len predicate) against a
real erasure-coded, genuinely-compressed object via the blackbox
make_local_set_disks harness, with a stand-in hook playing the app-layer
cache (the injection point production uses; the adapter itself lives above
ecstore). These close the gap the predicate-only tests left — a caller that
opens a new shortcut serving the cached body directly, the original form of
both P0s:
- backlog#1108: a raw_data_movement_read must yield the STORED (compressed)
bytes, never the cached plaintext.
- backlog#1109: a compressed cache hit must publish the DECOMPRESSED length
as object_info.size (the UploadPartCopy invariant), with the streamed
length matching.
- backlog#1146: a restore read (restore_request.days) must serve STORED
bytes, not the cache.
Mutation-verified each e2e test bites: dropping the raw_data_movement_read
gate serves plaintext (fails #1108); removing the hit-site size republication
publishes 2972 vs 660000 (fails #1109); dropping the restore gate serves
plaintext (fails #1146).
Co-authored-by: heihutu <heihutu@gmail.com>
* refactor(obs): make dial9 telemetry opt-in and actually record events
The dial9 Tokio-runtime profiler was disabled by default, yet every build
paid for it, and enabling it produced trace files with no events in them.
Recorded empty traces
---------------------
`build_traced_runtime` called `TracedRuntime::builder()...build(..)`, but dial9
only starts recording in `build_and_start*`. `build` still returns a live guard
whose `is_enabled()` reports true, and still creates and seals segment files —
they just contain a header and no events. It also skipped `with_trace_path`, so
the background worker driving the segment pipeline was never spawned.
Measured on the new smoke example: 310 bytes of bare segment header, against
5640 bytes for the same workload once recording actually starts.
Switch to `with_trace_path(..).build_and_start(..)`.
Cost was unconditional
----------------------
`--cfg tokio_unstable` was a global `[build] rustflags` entry and `rustfs-obs`
depended on `dial9-tokio-telemetry` unconditionally, so all builds depended on
Tokio's non-semver API. Worse, an environment `RUSTFLAGS` replaces (never
appends to) the config-file value, so any caller exporting their own RUSTFLAGS
silently dropped the flag — the long comment in build.yml was a scar from that.
dial9 is now an opt-in feature (`dial9`, plus `dial9-s3` and `dial9-taskdump`),
the global rustflag is gone, and `crates/obs/build.rs` fails the compile if the
feature is on without the flag. Telemetry builds go through `make build-profiling`.
Metrics that could not lie
--------------------------
`rustfs_dial9_{events_total,bytes_written_total,rotations_total,cpu_overhead_percent}`
were hard-coded to zero — a Counter pinned at 0 reads as "nothing happened".
Removed. `rustfs_dial9_enabled` was sourced from the environment, so it read 1
even when the traced runtime failed and the process fell back to a standard
runtime; it is replaced by `rustfs_dial9_supported` (compile-time),
`rustfs_dial9_configured` (intent) and `rustfs_dial9_active_sessions` (reality).
No `writer_healthy` gauge is exported: dial9's `RotatingWriter` can enter its
`Finished` state and stop writing, but exposes no way to observe that, so the
gauge could only ever be hard-coded to 1. Documented as a known gap instead.
Final events were lost
----------------------
The `TelemetryGuard` lived in a `static OnceLock`, which is never dropped, so
buffered events were never flushed at exit. `build_tokio_runtime` now returns
the guard and `run_process` drops it before any exit path.
Also
----
- `disk_usage_bytes` was a `read_dir` + per-file `stat` on the metrics
collection path. It is now sampled by a background task into an atomic.
- `SAMPLING_RATE`/`S3_BUCKET`/`S3_PREFIX` were parsed, warned about, and
discarded. S3 upload is now wired to dial9's `with_s3_uploader` behind
`dial9-s3`; `SAMPLING_RATE` has no upstream equivalent and is removed.
- Wire `with_task_dumps` (async backtraces of stalled tasks), configurable via
`RUSTFS_RUNTIME_DIAL9_TASK_DUMP_{ENABLED,IDLE_THRESHOLD_MS}`.
- Split `telemetry/dial9.rs` into `config`/`state`/`enabled`/`disabled`; the
stub keeps the public API identical so callers need no `#[cfg]`.
- Drop four print-only examples and the manual test bin that exercised the
removed `init_session` scaffolding.
Verified: cargo check/clippy/test across default, `dial9`, and `dial9-s3`;
build.rs correctly rejects `dial9` without `--cfg tokio_unstable`;
`make pre-commit` passes.
Co-Authored-By: heihutu <heihutu@gmail.com>
* docs(obs): document dial9 as an on-demand profiler
scripts/run.sh advertised a `SAMPLING_RATE` knob that was never passed to dial9,
and claimed "CPU overhead < 5% (with sampling rate 1.0)" and "lower values reduce
CPU overhead" on the strength of it. The knob is gone; the guidance built on it
had to go too.
Replace it with what is actually true: dial9 needs a `make build-profiling`
binary, its disk budget evicts oldest-first (so a high poll rate can overwrite
the incident you are chasing), and it cannot be toggled without a restart.
Add docs/operations/dial9-runtime-profiling.md covering the build variants, an
investigation walkthrough, the configuration table, how to read the three
supported/configured/active_sessions gauges against each other, and the upstream
gap that makes writer death only indirectly observable.
Co-Authored-By: heihutu <heihutu@gmail.com>
* test(obs): add a dial9 smoke example that proves events are recorded
The bug this guards against is invisible to every existing signal: with
`build` instead of `build_and_start`, dial9 creates the trace file, seals
segments, and reports `TelemetryGuard::is_enabled() == true` — it simply
records no events. Only the segment's byte count tells the two apart.
Measured on this workload: 5640 bytes when recording, 310 bytes (a bare
segment header) when not. The example asserts >= 2048 bytes, and was verified
to fail with the `build` call restored.
Also correct the comment on the `is_enabled` check in `finish_traced_runtime`.
It claimed to catch "recording silently off"; it does not. It only rejects the
inert guard a lenient config yields after a build failure. Recording is
guaranteed by `build_and_start`, not by that check.
Co-Authored-By: heihutu <heihutu@gmail.com>
* test(rustfs): accept Unsupported runtime telemetry capability
A binary built without the `dial9` feature now reports the runtime-telemetry
capability as `Unsupported` rather than `Disabled`. The distinction matters to
operators: `Disabled` implies the capability can be switched on by setting an
environment variable, which is not true here — telemetry needs a rebuild.
Widen the assertion and pin the new semantics: when `dial9::is_supported()` is
false, the state must be exactly `Unsupported`.
Co-Authored-By: heihutu <heihutu@gmail.com>
* fix(obs): drop the dial9-s3 feature, its TLS stack is vulnerable
CI's Dependency Review and `cargo deny` both reject the branch: dial9's
`worker-s3` feature depends on aws-sdk-s3-transfer-manager 0.1.3, which pins
aws-smithy-http-client onto hyper-rustls 0.24 and rustls-webpki 0.101.7. That
webpki carries RUSTSEC-2026-0098, -0099 and -0104.
0.1.3 is the latest release of the transfer manager, and 1.2.0 the latest of the
smithy client, so there is nothing to upgrade to. Cargo's feature unification can
add features but cannot drop a transitive dependency, so it cannot be worked
around from here either — the rest of the workspace already resolves to the safe
rustls-webpki 0.103 / hyper-rustls 0.27.
Remove the `dial9-s3` feature and the `with_s3_uploader` wiring. The two S3
environment variables stay parsed and warned about, now naming the real reason
rather than a missing build feature. Trace segments are collected from the output
directory instead. Tracked as D9-14 in rustfs/backlog#1157.
With this, Cargo.lock is byte-identical to main: the PR no longer touches the
dependency graph at all.
Also correct the `dial9-taskdump` documentation. It claimed the feature "compiles
to a no-op elsewhere"; in fact `tokio/taskdump` raises a `compile_error!` on any
target other than linux/{aarch64,x86,x86_64}. Verified by trying to build it on
macOS, which is how the claim was found to be wrong.
Co-Authored-By: heihutu <heihutu@gmail.com>
---------
Co-authored-by: heihutu <heihutu@gmail.com>
versions_scanned for both the scanner and ILM collectors was read from
the Lifecycle work source's `checked` counter, which is never recorded on
the production scan path — so rustfs_scanner_versions_scanned_total and
rustfs_ilm_versions_scanned_total sat at zero even while objects_scanned
climbed. The two metrics also have distinct intended meanings that were
conflated: "versions scanned" (all versions, any bucket) vs "versions
checked for ILM actions" (lifecycle-configured buckets only).
Add a lifetime `versions_scanned` counter recorded for every version the
scanner walks (independent of ILM), and record the Lifecycle source's
`checked` counter from the ILM evaluator so the ILM metric reflects the
real checked subset. The scanner collector now reports total scanned
versions; the ILM collector keeps the ILM-checked subset.
Closes backlog#995 (OBS-09).
Co-authored-by: heihutu <heihutu@gmail.com>
* fix(obs): isolate process sampler windows
Refs rustfs/backlog#1004
Refs rustfs/backlog#986
- add a reusable ProcessSampler so callers can own independent sysinfo refresh windows
- wire separate sampler instances for obs metrics scheduling and memory observability
- keep compatibility helpers while avoiding cross-task CPU and disk delta interference
Co-Authored-By: heihutu <heihutu@gmail.com>
* fix(obs): import process sampler bundle helper
Refs rustfs/backlog#1004
Refs rustfs/backlog#986
- import collect_process_metric_bundle_with in the metrics scheduler
- drop the stale collect_process_metric_bundle import after switching scheduler sampling to independent process samplers
Co-Authored-By: heihutu <heihutu@gmail.com>
* fix(obs): move process sampler into blocking task
Refs rustfs/backlog#1004
Refs rustfs/backlog#986
- move the memory observability process sampler into the spawn_blocking closure
- satisfy the closure static lifetime required by tokio while keeping the isolated sampler design intact
Co-Authored-By: heihutu <heihutu@gmail.com>
---------
Co-authored-by: heihutu <heihutu@gmail.com>
Refs rustfs/backlog#1006
- aggregate request traffic samples per type to avoid future counter collisions
- keep request schema and collector crate-internal until a production stats source exists
- preserve focused regression coverage for the internal request collector logic
Co-authored-by: heihutu <heihutu@gmail.com>
docs: document obs reverse dependency on ecstore
Add comment explaining why obs depends on ecstore and the scope
of work required to break this dependency.
Refs #735
Co-authored-by: houseme <housemecn@gmail.com>
Henry Guo