`test_vault_kv2_sources_do_not_claim_transit_wrapping` asserted that four
`include_str!`-pinned files never describe the Vault KV2 backend as wrapping key
material through Vault's Transit engine. The invariant is a documentation-claim
invariant with no behavioral twin by construction, and the test form was weak in
both directions: it saw only four files (the same prose in a fifth file passed
silently) and it stopped compiling — rather than reporting a violation — as soon
as one of them was renamed.
Move the four literals verbatim into `scripts/check_fips_wording.sh`, which
already guards the adjacent cryptographic over-claim class (unsupported FIPS
validation wording) and is anchored to the same policy document. The guard now
greps every file under `crates/kms` for the same four case-sensitive literals and
separately reports a moved pinned source instead of failing to build.
`check_fips_wording.sh` previously ran only in `make pre-commit` / `pre-pr`, so
wire it into the Quick Checks job of both CI workflows to keep the invariant's
failure visibility at least as strong as the deleted test's.
test(e2e): drop no-op serial markers from the three densest e2e suites
serial_test's #[serial] is an in-process mutex. cargo-nextest, this repo's
authoritative runner, executes every test in its own process, so the mutex is
never contended and the attribute is a documented no-op -- see the "Serial
execution & nextest profiles" section of docs/testing/README.md and the header
of .config/nextest.toml. Cross-process serialization is provided only by a
[test-groups] entry with max-threads = 1.
Remove 187 such markers (plus 3 now-unused imports) from the three
marker-densest modules of crates/e2e_test:
multipart_auth_test.rs 85
replication_extension_test.rs 68
object_lock/object_lock_test.rs 34
None of these modules is covered by any [test-groups] entry, so the markers
were carrying no isolation for any lane. Every test in all three files builds
its own server via RustFSTestEnvironment::new(), which gives a UUID temp dir
and a uniquely allocated port -- the .config/nextest.toml comment on
replication_extension_test already states this explicitly ("parallel-safe by
construction"). No test mutates process env, binds a fixed port, or touches
process-global state, so nothing here needed temp_env or a test-group instead.
Pure deletion: 190 lines removed, 0 added, no test renamed, no behaviour
changed. serial_test stays in Cargo.toml -- 338 markers across 90 other files
in the crate still use it.
Refs: backlog#1846 (T1).
* feat(heal): incremental heal status cursors and typed overlap policy (HS-06)
Incremental results: every retained result item now carries a monotonic
sequence number. The status query accepts a client cursor (sinceSeq on
the admin wire, Option<u64> internally) and returns only newer items,
plus nextSeq (the next cursor) and minSeq (the oldest retained
sequence). A cursor that fell behind the 1024-item retention window is
flagged through the existing truncated signal together with minSeq so
the client can restart from it. Sequencing survives task completion:
the completion archive stores the seq-stamped window. None keeps the
exact legacy full-snapshot behavior, so existing clients see no change.
Typed overlap handling for admin starts: RUSTFS_HEAL_OVERLAP_POLICY
(merge default | minio_error). Under minio_error, an admin start whose
path overlaps an active or queued task rejects with typed
already-running / overlapping-paths admission reasons (surfaced through
reason_label in the admin error body, sharing the existing
OperationAborted site because the s3s footprint ratchet forbids new
s3_error! sites); an exact duplicate start rejects with
already-running instead of silently merging. Scanner/autoheal/
read-repair sources never take the rejection path.
forceStart semantics now match MinIO for admin requests: an admin
forceStart first cancels the overlapping active admin task, then
admits the replacement.
Wire: the heal-control Query command grows an optional sinceSeq
(defaulted and skipped when absent, so older peers stay compatible);
the admin handler accepts the sinceSeq query parameter; the local
channel query gains the same cursor.
Tests: seq monotonicity and incremental slicing, window slide moving
minSeq with lagging-cursor flags, overlap matrix (same/containing/
contained/disjoint x policy x source), forceStart cancel-then-admit,
and the completion-archive window handoff.
Co-Authored-By: heihutu <heihutu@gmail.com>
* style: fmt after main merge
---------
Co-authored-by: heihutu <heihutu@gmail.com>
Co-authored-by: zhi22915 <qiuzgang@gmail.com>
* fix(ecstore): single-flight remote disk recovery
* test(ecstore): cover remote recovery review cases
* test(ecstore): exercise recovery through disk slot
* test(ecstore): match format reads exactly
* test(ecstore): cover recovery teardown races
* style(ecstore): format recovery race tests
* fix(ecstore): remove unused health snapshot helper
* fix(ecstore): group recovery monitor test state
* fix(protos): preserve production source in compatibility checks
Neither rustfs/src/storage/backpressure.rs nor rustfs/src/storage/lock_optimizer.rs had a production caller: their only non-self references were the pub mod lines in storage/mod.rs and a cfg(test) module, so the object transfer path never applied this backpressure and never took these lock shortcuts.
The six removed tests in concurrent_fix_test.rs duplicated tests that lived inside the deleted files; the shared primitives they shadowed keep their own coverage in rustfs-io-core.
Remove every bare `#[allow(dead_code)]` in io-core, object-capacity, targets, rio, and scanner. Each allow was stripped first and clippy was then asked which ones the compiler actually missed, so the verdicts rest on the diagnostic rather than on inspection.
23 were inert: they sat on `pub fn`s inside `pub mod`s, where `dead_code` does not apply, or on scanner integration-test helpers that the tests in the same file do call.
The remaining 3 are in rio's private `compress_index` module and the code behind them is deleted rather than annotated. `remove_index_headers` is dead and also wrong — after skipping the 4-byte chunk header it matches against `S2_INDEX_TRAILER` where `S2_INDEX_HEADER` sits, so it returns `None` for every well-formed index; rio-v2 carries the correct equivalent that is actually in use. `restore_index_headers` is its unreachable counterpart, likewise duplicated live in rio-v2. `Index::reset` is a private method with no caller.
Refs backlog#1823
* feat(common): add MRF intent channel and Mrf request source (HS-01)
Introduce the producer-facing half of the mission repair feed: a global
bounded (8192) channel carrying lightweight MrfIntent values from IO
error paths, plus the RUSTFS_HEAL_MRF_ENABLE delivery kill-switch and
config constants for queue/journal sizing. Delivery is strictly
non-blocking (try_send, drop-on-full) so it can sit on decode-failure
and partial-write paths without adding latency. HealRequestSource grows
a 'mrf' variant so admission accounting can attribute replayed intents.
Part of backlog#1865 (option a: wire HealEvent-style intents with a
durable retry ledger).
Co-Authored-By: heihutu <heihutu@gmail.com>
* feat(heal): add MRF queue, durable journal, and intent consumer (HS-01)
Consumer half of the mission repair feed: a bounded pending queue
(100k intents / 8 MiB dual ceiling, drop-newest on overflow), a durable
journal at buckets/.heal/mrf/journal.bin holding the unaccepted pending
snapshot, and a consumer task that batches intents off the global
channel, translates them into prioritized heal requests (decode
failure -> Urgent ECDecode, metadata corruption -> High Metadata,
partial write -> Normal object heal), and retries full admissions with
a 5s backoff and a 3-attempt ceiling.
Durability: every journal record carries its own CRC32 and a
format/version header, so a torn tail truncates cleanly at replay; the
journal is deleted after a successful replay and when the pending set
drains (mirroring MinIO's post-replay list.bin unlink). Losing the last
500 ms flush window is acceptable: replayed duplicates merge via the
manager dedup key and read-repair remains the safety net.
Metrics: rustfs_heal_mrf_queue_depth/_queue_bytes, _dropped_total
{reason}, _replayed_total, _journal_bytes, _journal_fsync_total.
The consumer is wired at heal runtime bootstrap right after manager
start, honoring RUSTFS_HEAL_MRF_ENABLE (default on, rollback = off).
Tests: unit tests for the dual ceiling, record roundtrip, torn-tail
truncation, and the priority mapping; integration tests against a real
4-disk ECStore proving channel intents reach the manager queue as
Urgent/mrf-attributed requests and journal replay arms intents, drops
torn tails, and removes the file.
Part of backlog#1865 (option a).
Co-Authored-By: heihutu <heihutu@gmail.com>
* feat(ecstore,scanner): deliver MRF intents from error paths (HS-01)
Wire the three production delivery points, each a single non-blocking
try_send next to the existing in-memory heal paths, which stay as the
fast path:
- read.rs decode-error branch: DecodeFailure intent beside the existing
read-repair submit, so an Urgent ECDecode request survives restarts
even when the Low-priority read-repair request was dropped or lost.
- add_partial: PartialWrite intent, giving partial-write recovery a
durable Normal-priority object heal across restarts.
- scanner_folder metadata-corruption classification: MetadataCorruption
intent beside the existing High-priority scanner heal request.
All three are on error paths only: zero cost on healthy IO.
Part of backlog#1865 (option a).
Co-Authored-By: heihutu <heihutu@gmail.com>
* fix: include mrf heal source counts
Co-Authored-By: heihutu <heihutu@gmail.com>
* fix: keep node heal status wire compatibility
Co-Authored-By: heihutu <heihutu@gmail.com>
---------
Co-authored-by: heihutu <heihutu@gmail.com>
Add an experimental fixed-count foreground PutObject admission gate for #1882 Phase 0 validation. The gate is default-off, returns SlowDown before body ingest when saturated, and keeps the admission permit with the spawned store commit owner until store PUT returns.
Co-authored-by: heihutu <heihutu@gmail.com>
* test(heal): add concurrency invariants for heal vs delete/overwrite races (HS-12)
Audit conclusion for backlog#1874: RustFS does not need a persistent
object-level healing marker (MinIO x-minio-healing) because every path
that can touch the same (bucket, object) commit surface serializes on
the same namespace write lock, and the heal lock guard spans the whole
rename commit including the HEAL_RENAME_INCOMPLETE partial path.
Lock the conclusion in with two race regression tests:
- heal_racing_version_delete_never_resurrects_the_deleted_version:
shard damage is injected on the doomed version so a Deep heal has real
reconstruction work while a versioned DELETE runs concurrently; the
deleted version must stay deleted and the survivor intact.
- heal_racing_unversioned_overwrites_preserves_the_last_commit:
unversioned overwrites (activating the post-commit tail that deletes
the replaced data dir without the ns lock) race a Deep heal in a
loop; the final current version must be exactly the last commit.
Also adds docs/operations/heal-concurrency-safety-notes-zh.md with the
full intersection matrix (17 intersections), lock-coverage argument,
and the residual-window classification (commit tail races are
fail-into-retry safe; bare prefix delete has zero production callers;
admin no_lock is an explicit operator opt-in).
Co-Authored-By: heihutu <heihutu@gmail.com>
* test: remove redundant heal etag clone
Co-Authored-By: heihutu <heihutu@gmail.com>
---------
Co-authored-by: heihutu <heihutu@gmail.com>
heal_bucket, list_bucket, get_bucket_info and delete_bucket returned Error::other("") when a peer answered success=false without an error payload, so operators saw a bare "io error " after quorum reduction. Route all five bucket RPCs through peer_failure_without_details, which names the operation and bucket while staying identical across the peers of one operation so reduce_errs keeps grouping them into a single dominant error.
* feat(scanner): emit excess alerts as S3 notification events
The excess-versions / excess-version-size / excess-folders alerts were
metrics-and-logs only; consoles and external auditors had no way to hear
them (rustfs/backlog#1868, HS-04). MinIO emits s3:ObjectManyVersions /
s3:ObjectLargeVersions / s3:PrefixManyFolders for the same conditions —
RustFS carries those as EventName::Scanner* with s3:Scanner:* wire names
that already existed unpublished.
The three alert sites now also dispatch through the standard event
pipeline (send_event via the storage_api owner facade), carrying the
actual values and thresholds in req_params and UserAgent "Scanner".
Without a cooldown a single over-threshold object would re-emit on every
~60s scan cycle, so emissions are edge-held per (kind, bucket, object)
for 24h (RUSTFS_SCANNER_ALERT_COOLDOWN_SECS, 0 = every cycle), backed by
a process-global map with a 4096-key hard cap that clears rather than
grows. Metrics and structured logs stay level-triggered every cycle;
only the notification events are held back. A restart resets the
cooldown deliberately: one re-emission per still-hot key buys back
visibility after the restarts that accompany incident response.
Tests pin the edge-hold semantics (first fires, immediate re-check held,
independent keys, cooldown expiry re-fires, zero cooldown always emits,
hard bound) in one sequential test for the process-global map, and pin
the emitted wire names against EventName's canonical string forms so a
subscribed bucket notification can never silently stop matching.
docs/operations/scanner-excess-alerts.md documents the three events,
the metric-vs-event cadence difference, and the HS-15 threshold deltas
(alert_excess_folders 65538 vs MinIO 50000 is deliberate: Proxmox
Backup Server chunk layout compatibility).
Closesrustfs/backlog#1868.
Co-Authored-By: heihutu <heihutu@gmail.com>
* docs(operations): split scanner excess alerts into English and Chinese pages
The page shipped Chinese-only; keep it as scanner-excess-alerts_zh.md and
add a faithful English translation at the original path, cross-linked at
the top of both.
Co-Authored-By: heihutu <heihutu@gmail.com>
---------
Co-authored-by: heihutu <heihutu@gmail.com>
* feat(heal): track erasure set progress baseline
Record erasure-set heal byte progress from per-object results and seed progress totals from complete usage-cache snapshots when available.
Keep usage-cache failures observational so heal execution continues without a baseline.
Co-Authored-By: heihutu <heihutu@gmail.com>
* feat(heal): skip filtered erasure set versions
Skip erasure-set versions written after the durable heal start time, and queue lifecycle-expired versions for expiry before skipping them.
Track new-version and ILM-expired skips separately so progress can explain completed baseline work without treating these skips as retry-blocking failures.
Co-Authored-By: heihutu <heihutu@gmail.com>
* feat(heal): wire abandoned data-dir cleanup check
Connect check_abandoned_parts through ECStore, pool, and set layers so heal can invoke the existing orphan data-dir reclaim path instead of returning NotImplemented.
Add dry-run support to the reclaim scan and cover dry-run plus scoped set behavior with regression tests.
Co-Authored-By: heihutu <heihutu@gmail.com>
* feat(obs): add heal scanner trace bus
Introduce an in-process broadcast trace bus with typed heal and scanner events, lazy event construction, and bounded lagged-subscriber behavior.
Cover zero-subscriber publishing, subscription delivery, drop accounting, and lagged receivers with focused common-crate tests.
Co-Authored-By: heihutu <heihutu@gmail.com>
* feat(obs): stream heal trace events from admin API
Wire the admin trace endpoint to the common trace bus for heal/scanner events, including kind, regex, and threshold filtering.
Co-Authored-By: heihutu <heihutu@gmail.com>
* feat(obs): emit heal trace events
Publish heal task lifecycle and abandoned-parts cleanup events through the common trace bus so the admin trace stream has live heal diagnostics.
Co-Authored-By: heihutu <heihutu@gmail.com>
* feat(obs): emit scanner trace events
Publish scanner folder, lifecycle action, and heal-candidate events through the common trace bus for live admin scanner diagnostics.
Co-Authored-By: heihutu <heihutu@gmail.com>
* fix(heal): route data usage loader through storage api
Keep ECStore data-usage facade access behind the heal storage_api boundary so architecture migration guards can validate the heal progress path.
Co-Authored-By: heihutu <heihutu@gmail.com>
* perf(heal): avoid lifecycle snapshots on ordinary heal pages
Only request lifecycle object snapshots when the heal pass has lifecycle expiry context. This keeps ordinary listing and disk-walk pages from cloning FileInfo/ObjectInfo payloads while preserving the skip path that queues expired versions.
Co-Authored-By: heihutu <heihutu@gmail.com>
* test(heal): update bug-fix mocks for lifecycle snapshots
Carry the lifecycle snapshot opt-in argument through the remaining heal bug-fix test mocks so all-targets clippy covers the updated storage trait.
Co-Authored-By: heihutu <heihutu@gmail.com>
* test(rustfs): sync heal storage mock signature
Update the rustfs storage RPC test mock for the lifecycle snapshot opt-in argument and cover it with rustfs all-targets clippy.
Co-Authored-By: heihutu <heihutu@gmail.com>
* test(e2e): allocate smoke ports across nextest processes
Serialize E2E port selection with a small /tmp allocator so nextest workers do not reuse the same just-released ephemeral port before RustFS binds it.
Co-Authored-By: heihutu <heihutu@gmail.com>
---------
Co-authored-by: heihutu <heihutu@gmail.com>
Replace every bare `#[allow(dead_code)]` in ecstore with either a deletion or a per-item allow carrying a `reason`. Blanket allows at module, struct, and impl level silence the lint for future members too, so each is narrowed to the members that are actually dead.
Delete the dead cluster in `config/heal.rs` (`Config`, its three methods, `RUSTFS_BITROT_CYCLE_IN_MONTHS`, `parse_bitrot_config`) rather than annotate it: it has no callers and is unreachable outside the crate, and `parse_bitrot_config` would panic on its disabled path via `Duration::from_secs_f64(-1.0)`. `DEFAULT_KVS` stays, since the config registry uses it.
Correct two `reason` strings on `Checksum::new` and `PutObjReader::md5_current_hex_string`, which are methods but carried a field-only rationale.
Refs backlog#1823
Co-authored-by: houseme <housemecn@gmail.com>
feat(scanner): expose prefix-level bucket usage via admin API
The scanner's per-bucket, per-set usage caches already hold a path-keyed
prefix tree, but dui() flattened it only to bucket names — consoles and
operators had no way to ask "what does this prefix hold" without an S3
listing sweep (rustfs/backlog#1872, MinIO loadPrefixUsageFromBackend
parity).
Add:
- data-usage: prefix_usage_in_cache — a shared aggregation over the
entry map (arbitrary prefix, full counters, one-level sub-prefix
breakdown with names recovered from the literal-path cache keys),
hardened like the scanner's checked flatten: cycles, dangling child
links, over-deep trees, and overflowing counters yield None rather
than unbounded recursion or wrapped totals.
- ecstore: ECStore::all_set_disks — iterate every erasure set so a
query can read each set's own cache copy; the hash-routed store path
would always land on one set.
- scanner: bucket_prefix_usage — per-set loads (5s budget each, a slow
set degrades to not-reporting instead of stalling the caller),
merged across sets with partial/compacted/truncated flags, served
from a bounded 30s cache (128 entries, hard-capped) that bucket
writes invalidate through the dirty-usage hook.
- admin: GET /rustfs/admin/v3/usage/{bucket}?prefix=&max-entries=
behind the same any-of gate as datausageinfo (DataUsageInfoAdminAction
OR ListBucketAction), rejecting unknown query parameters and
clamping max-entries to 1..=10000. Route registered in the policy
table (deferred MultipleActions, matching datausageinfo) and the
route matrix test.
Closesrustfs/backlog#1872.
Co-authored-by: heihutu <heihutu@gmail.com>
feat(madmin): add a SigV4-signed admin client for heal and scanner APIs
The madmin crate held only wire types; automation and mc-style tooling
had no way to drive the heal/scanner admin surface without hand-rolled
HTTP. Add `AdminClient`, which signs with the same rustfs-signer path
the server authenticates (UNSIGNED-PAYLOAD marker, matching RustFS peer
admin calls) and wraps:
- heal_start / heal_status / heal_stop over POST /rustfs/admin/v3/heal/
(bucket/prefix path params percent-encoded per segment; stop models
the server's two cancel branches: token-scoped task status vs
path-scoped start-success receipt);
- background_heal_status, scanner_status (freshness typed), plus
ilm_expiry_status / replacement_recovery_status passthroughs;
- a public get_json escape hatch for endpoints not wrapped yet.
Wire types follow the madmin-go model (SDK-owned mirrors pinned by
round-trip tests): HealOpts with serde defaults so partial settings
objects decode, HealScanMode accepting both the numeric and name
encodings, and status structs that type the fields operators branch on
while flattening unknown nested payloads verbatim so server additions
cannot break the client. Errors map to a closed AdminClientError enum
(InvalidEndpoint / Transport / HttpStatus with body / Decode).
Tests cover wire round-trips, path building, both stop branches, error
mapping, and — via a dependency-free raw-TCP test server — that signed
requests carry a SigV4 Authorization header, the right method/path/
query, and the expected JSON body.
Closesrustfs/backlog#1869 (first increment; single-sourcing the wire
structs server-side and an embedded-server e2e roundtrip are noted as
follow-ups there).
Co-authored-by: heihutu <heihutu@gmail.com>
feat(ecstore): pin bitrot algorithms with a startup self-test
A drifted HighwayHash implementation fails silently: every shard reads
back corrupt, heal rewrites healthy data, and cross-platform clusters
disagree about which copy is good. Mirror MinIO's bitrotSelfTest by
verifying, once at process start:
- known-answer digests for HighwayHash256S / HighwayHash256SLegacy over
a deterministic 4096-byte xorshift64* payload, plus the externally
verifiable FIPS SHA-256 "abc" vector guarding the HashAlgorithm
plumbing itself;
- an end-to-end roundtrip per streaming variant (encode -> size formula
-> bitrot_verify -> BitrotReader read-back), over full blocks and a
partial tail;
- tamper detection: one flipped byte in the final data block and one in
the leading hash must both be rejected as a hash mismatch, not by an
incidental read error.
The check costs microseconds and runs inline in
init_background_service_runtime before any shard can be written or
verified. Outcome surfaces as one structured bitrot_selftest log event,
the rustfs_bitrot_selftest_status gauge (1=passed / 0=failed / 2=skipped),
a bitrotSelftest field on the admin server-info response, and
RUSTFS_BITROT_SELFTEST_STRICT=on turns a failure into a startup error
(MinIO Fatal parity; the default only degrades the status so a bad build
cannot brick an existing fleet on upgrade).
Closesrustfs/backlog#1873 (HS-11).
Co-authored-by: heihutu <heihutu@gmail.com>
backlog#1823 step 10, batch 1 of the repo-wide item-allow sweep. 227 bare #[allow(dead_code)] remain across 83 files; this takes the 19 in utils, notify, checksums, policy, keystone and trusted-proxies, which are small enough to verify end to end.
Removing all 19 first, before writing any reason, matters: 8 of them suppress nothing. Every allow in utils, one in policy and three in notify sit on items that are publicly reachable, so dead_code never applied to them — the same shape as the swift module and kms's dek.rs. Writing a reason onto a no-op allow would dress noise up as considered judgement, so those are simply deleted.
Three items are genuinely dead and go with their allows: notify's new_target_id_set, the AWS metadata fetcher's get_metadata_token, and policy's empty `pub struct Value;`, none of which is referenced anywhere in the tree.
The remaining eight keep an allow, now saying why the item survives rather than who calls it. Two are exercised only by their own crate's tests (checksums' MD5_HEADER_NAME, policy's is_match_as_pattern_prefix). Four are fields written but never read back: keystone's verify_ssl, parsed from config after the reqwest client is already built; keystone's client handle, which keeps the Keystone client alive for the mapper's lifetime; the AWS IMDS endpoint, kept beside the client while requests build their own URLs; and notify's rules_map, whose own comment retains it for snapshot-time judgements no code performs.
checksums' Md5 needed the most care. Crc32, Sha256 and seven others each have an arm in ChecksumAlgorithm::into_impl, and Md5 has none, which reads like a missing algorithm. It is not: ChecksumAlgorithm has no Md5 variant at all. S3 carries Content-MD5 as its own header, separate from the x-amz-checksum-* family, and this impl exists so both paths share the Checksum trait. The reason records that, so the next reader does not re-derive it.
One measurement note for anyone continuing this sweep: cargo does not re-emit warnings for cached compilations, so a per-crate loop of `cargo check -p <crate>` under-reports. checksums showed zero that way while actually carrying three. Touch the sources and check the crates in one invocation, then attribute by path.
Verification: the six crates are warning-free under cargo check --tests; clippy --lib --tests -D warnings clean; cargo nextest run 1096 passed; make pre-commit exit 0.
Ref rustfs/backlog#1823 (step 10).
backlog#1823 step 10, batch 2. Eighteen of the nineteen suppress nothing and are deleted; one was real and keeps an allow that now says why.
Rotation::Never is constructed only by the rolling-appender tests at rolling.rs:456, 477 and 498, so the lib target reports it as never constructed. Its allow is restored with that reason.
Finding it corrected the method used for batch 1. Removing all nineteen and running cargo check -p rustfs-obs --tests reported zero warnings even after touching every source file, while clippy --lib --tests -D warnings caught Rotation::Never. cargo's warning output is not a reliable completeness check — it does not re-emit for cached compilations, and touching the sources did not cover the lib target here. Later batches should treat clippy -D warnings as the gate; batch 1's six crates were re-checked under clippy and are clean.
Taken with #6086, which cleared this crate's 44 module-level blankets and left six real items, obs has now had 63 dead-code suppressions examined, of which seven were suppressing anything at all. The rest sat on items that are publicly reachable, where dead_code never applied — the same shape as the swift module and kms's dek.rs.
Verification: clippy --lib --tests -D warnings clean in the default, gpu and pyroscope lanes; cargo nextest run -p rustfs-obs 324 passed; make pre-commit exit 0.
Ref rustfs/backlog#1823 (step 10).
backlog#1823 step 1, the diagnosis half. Temporarily removing set_disk/mod.rs's #![allow(unused_variables)] surfaced nine bindings. The issue asks that values computed and then dropped on write/quorum paths be diagnosed before being underscored, and that turned out to matter: only four were plain leftovers.
Two errors were bound and then left out of the log they were bound for. complete_multipart_upload's checksum failures read `if let Err(err) = ...` and then log part_id, bucket and object with no `err` anywhere in the message, so a checksum failure in production told you which part failed but not why. Both messages now carry the error.
One is a lock guard. heal's write_lock_guard holds a namespace write lock for the rest of the scope; renaming it to a bare `_` would drop it immediately and release the lock. It is now `_write_lock_guard`, with a comment saying why it must not be `_`.
One was kept alive by a corpse. `errors` in read_multiple_files is read by nothing except two commented-out debug! lines directly below it; the binding and the commented lines go together.
One is a cfg split. heal's disk_index is read only inside the #[cfg(test)] fault-injection branch, so underscoring it would break the test build; a `#[cfg(not(test))] let _ = disk_index;` covers the non-test lane instead.
The remaining four are genuine leftovers: an unused enumerate index in list_object_parts, a discarded error in a heal reader loop, an inner binding shadowing its own iterator variable, and delete_object's write_quorum.
That last one is worth a separate look: delete_object asks get_object_info_and_quorum for a write quorum and never uses it, because delete_object_version below recomputes its own as disks.len() / 2 + 1. The two are not the same number — one comes from the object's erasure configuration, the other is a plain majority of the disk array. Pre-existing behaviour, untouched here.
The blankets stay for now. Removing #![allow(unused_imports)] exposes 76 unused imports in set_disk/mod.rs, and they cannot be removed per-lane: cargo fix, working from the lib lane, produced 54 compile errors in the test lane. That needs its own pass with both lanes checked per import.
Verification: cargo check -p rustfs-ecstore --tests and --features test-util --tests both warning-free; clippy --lib --tests -D warnings clean; cargo nextest run -p rustfs-ecstore 4101 passed; make pre-commit exit 0.
Ref rustfs/backlog#1823 (step 1).
backlog#1823 step 8, partial. The swift module carries 43 #[allow(dead_code)] attributes, most with a comment naming a consumer: "Used by handler", "Handler integration: GET container", "Used by handler and object.rs".
Every one of them suppresses nothing. crates/protocols/src/lib.rs declares `pub mod swift`, and swift/mod.rs declares all 22 submodules `pub mod`, so every item is publicly reachable and dead_code never applied to it. Removing all 43 leaves the warning count at zero, in both the default and --features swift lanes.
That is also why those comments survived. They assert who calls the item — a claim the compiler normally settles on its own — and the compiler had been silenced by the visibility chain.
The rest of step 8 needs a decision this PR does not make. Downgrading the 22 submodules to `pub(crate) mod` does restore detection, and it surfaces 39 real items, 16 of them the whole of sync.rs: SyncConfig, SyncStatus, SyncQueueEntry, ConflictResolution and every function and constant around them, i.e. Swift container sync is built and never wired.
But the `pub mod` chain is load-bearing. Six integration tests under crates/protocols/tests are separate crates that import the submodules directly (swift::quota, swift::slo, swift::symlink, swift::sync, swift::tempurl, swift::container), and the downgrade fails to compile them. Restoring dead-code detection for this module therefore depends on first deciding whether those tests move in-crate — which is a testing-strategy call, not a cleanup one.
Verification: cargo check -p rustfs-protocols warning-free in the default lane and with --features swift (lib and --tests); clippy --features swift --lib --tests -D warnings clean; cargo nextest run -p rustfs-protocols --features swift 441 passed; make pre-commit exit 0.
Ref rustfs/backlog#1823 (step 8).
Add a diagnostic metadata-only read_version delay hook for GET data-read fanout so bounded/default behavior can be compared under controlled slow-tail metadata responses.
Co-authored-by: heihutu <heihutu@gmail.com>
#6107 routed the transitioned read through the object's own ReadPlan so a tiered SSE object stops serving ciphertext. Compression rides that same plan and got fixed with it, but nothing pins it: revert the routing and a compressed object that ILM moved to a warm tier returns its stored (compressed) bytes under the compressed size, with every existing test still green.
The gap is easy to reopen because transition genuinely uploads the stored representation — the upload side is correct and the read side is the only place that can decode it. These tests state that contract at the boundary where it broke.
Four cases, all through SetDisks::get_object_reader against a mock warm tier:
- a full GET of a transitioned compressed object returns the plaintext and publishes the plaintext size (the test also asserts the remote copy holds the compressed bytes, so it fails loudly if the upload side ever changes instead);
- a ranged GET returns that plaintext slice, with the range deliberately starting past the compressed size so a range still measured in stored coordinates cannot produce it;
- a restore read still receives the stored bytes under the stored size — restore_request_active holds it on the Plain branch, and decompressing there would write plaintext under compressed metadata;
- a plain transitioned object still reads back byte-identical, full and ranged.
Verified as guards, not decoration: forcing the tiered read back onto the Plain branch turns the two compressed tests red and leaves the plain and restore tests green.
What these do not pin, so the gap stays recorded rather than implied covered: the fixture carries no compression index, so part.index stays None and the plan's storage offset is always 0 — the compressed-offset translation itself is still untested, as are multipart compressed objects, partNumber reads, and the encrypted tiered read that #6107 targeted.
* chore(ecstore): drop the bucket dead_code blanket
The last blanket of the backlog#1823 burn-down, and the largest: 71 items across lifecycle, replication, metadata, quota, object lock and bucket utils. Four are deleted.
Deleted, all trivial:
- check_valid_object_name and check_valid_object_name_prefix, a pair that only calls into each other with no external caller. Worth stating plainly so nobody reads this as a validation gap: object names are validated through check_object_name_for_length_and_slash, which is live; this pair is a second, unwired entry point.
- DEFAULT_HEALTH_CHECK_RELOAD_DURATION, a lone unused constant.
- The LifecycleReplicationConfig alias, which orphaned a re-export in replication/mod.rs that goes with it.
Everything else is kept, in four groups, because the blanket here was hiding structure rather than rot:
Windows platform gating. WINDOWS_RESERVED_NAMES, the two reason constants and object_name_has_windows_incompatible_segment are called from inside the #[cfg(target_os = "windows")] block in check_object_name_for_length_and_slash (utils.rs:228-255), so they only read as dead on non-Windows hosts. As with the Linux gating in the disk root, this cannot be adjudicated locally: cargo check for both x86_64-pc-windows-msvc and x86_64-unknown-linux-gnu fails in the aws-lc-sys build script for want of a cross C toolchain. CI covers both.
Declared boundary surface. The *_boundary.rs and *_bridge.rs files carry the replication split plan's contracts, which scripts/check_architecture_migration_rules.sh pins through the EcstoreReplicationBoundaryImports section of the split-plan doc. Their unused items are declarations, not leftovers.
test-util seams. ConfigWriteLockProbe with install/wait_until_attempted follows the same pattern as the barriers in the services and set_disk roots.
MinIO-parity tier/lifecycle entry points that this port never wired: apply_lifecycle_action, get_transitioned_object_reader, recover_tier_free_versions, delete_object_from_remote_tier, abort_tier_delete_journal_entry and the replication pool's worker-management surface. These are complete, substantial machinery with no caller — the same shape as data_usage's local_snapshot feature. Removing them is a product decision, so they are made explicit here rather than deleted.
Verification, four lanes warning-free: default, --tests, --features rio-v2 --tests, --features test-util --tests. cargo nextest run -p rustfs-ecstore 4096 passed; clippy --lib --tests -D warnings clean; make pre-commit exit 0. Note that clippy is what caught the orphaned re-export above: cargo check and pre-commit both treat unused_imports as a warning.
Ref rustfs/backlog#1823 (step 2, final root).
* chore(ecstore): correct inaccurate dead_code reasons in the bucket root
Six items were labelled 'asserted by this file's tests' or as MinIO-parity
entry points while having no caller at all - free get_bucket_acl_config and
created_at only reach their own live methods (production goes through
created_at_in), BucketVersioningSys::get_in, utils::serialize_content and
ServiceType have no reference anywhere, and with_transition_queue_env_async
is an unused test fixture, not a tier entry point. Name what each one is so
the next reader does not assume coverage that is not there.
Ref rustfs/backlog#1823.
* chore(ecstore): drop the set_disk dead_code blanket
Removing the blanket exposes 39 items; exactly one is deleted. The low share is a finding, not caution: unlike the disk root, where platform gating made local adjudication impossible, here the items were checked and nearly all of them are live.
Deleted: HealEntryResult, the only item with no reference anywhere.
What the checks turned up, in the order the warnings suggest deleting them:
SetDisks::rename_data looked like the head of a dead chain feeding into_legacy_tuple and RenameDataLegacyTuple. It is not: production goes through rename_data_owned, and rename_data itself has test callers at mod.rs:5809 and 5880. The chain below it is therefore live through the tests, and inferring "this is dead, so its callee is dead" would have removed three working items.
create_bitrot_readers_until_quorum, read_multiple_files and map_cleanup_join_result all have callers inside their files' test modules, so they only look dead in the lib target.
TransitionCommitBarrier and TransitionUploadedSaveProbe, with their install/wait_until_paused/release surfaces, are installed by tests behind #[cfg(all(test, feature = "test-util"))].
ctx.rs's SetDisksCtx accessors are the split seam left by the SetDisks god-object break-up (backlog#815).
heal_object_dir's two apparent references are comments, and they document an index-alignment contract that live code maintains for it, so they stay as they are.
Worth a maintainer decision: the metadata early-stop switch has a complete percentage-rollout facet — ENV_RUSTFS_GET_METADATA_EARLY_STOP_ROLLOUT_PCT, get_metadata_early_stop_rollout_pct and should_use_metadata_early_stop — with no caller, no test and no documentation, while its sibling enable flag is live. It is kept with an allow that says so rather than removed, since a rollout knob is a product call.
One placement note for anyone adding allows near heal code: check_logging_guardrails.sh requires #[instrument(level = "trace")] to sit immediately before async fn heal_object_dir, so the allow goes above the instrument attribute. Putting it between the two drops the guard's match count and fails the check.
Verification, four lanes warning-free: default, --tests, --features rio-v2 --tests, --features test-util --tests. cargo nextest run -p rustfs-ecstore 4096 passed; clippy --lib --tests -D warnings clean; make pre-commit exit 0.
Ref rustfs/backlog#1823 (step 2).
* chore(ecstore): fix duplicated and inaccurate dead_code reasons in set_disk
format_lock_error carried the same #[allow] twice. Five items in the
locking/heal roots were labelled 'asserted by this file's tests' while
having no reference at all - heal_object_dir's only two references are
comments, as this branch's own notes point out. Say what each item
actually is instead, so the next reader does not assume test coverage
that is not there.
Ref rustfs/backlog#1823.
* chore(ecstore): correct the bounded_spare_disk_index dead_code reason
The mod.rs copy is an unused test fixture, not something this module's
tests assert; the namesake that is exercised lives in the io_primitives
test module.
Ref rustfs/backlog#1823.
* chore(ecstore): drop the disk dead_code blanket
Removing the blanket exposes 36 items in the lowest storage layer: 7 deleted, 29 kept with reasoned item-level allows. That is the smallest deletion share of this burn-down, and the reason is a verification limit rather than a judgement call.
disk/local.rs carries 141 `#[cfg(target_os = "linux")]` sites — the densest platform gating in the tree, because O_DIRECT and io_uring only exist there. The direct-I/O cluster (six ENV_RUSTFS_OBJECT_DIRECT_IO_* constants plus is_direct_io_read_enabled, is_direct_io_write_enabled, get_direct_io_read_threshold, direct_write_staging_capacity, direct_write_tail_split and DIRECT_WRITE_STAGING_BYTES) reads as dead on macOS purely because its production callers at local.rs:1766, 3114 and 4605 sit inside Linux-gated blocks. direct_write_staging_capacity even documents itself as "Platform-independent (no O_DIRECT), so it is unit-tested on any host".
Deleting those would leave every local check green — 4096 tests pass, clippy is clean, make pre-commit exits 0 — and break the Linux build in CI, because all four local lanes compile for aarch64-apple-darwin. Cross-checking locally is not available either: cargo check --target x86_64-unknown-linux-gnu fails in the aws-lc-sys build script for want of a Linux C cross-compiler. Their allows name the platform reason so the next reader on a non-Linux host does not repeat the investigation.
Deleted, all in files with no target_os gating at all (os.rs, disk_store.rs):
- HealthDiskCtxKey and HealthDiskCtxValue with its private log_success. Note that DiskHealthTracker::log_success is a different method of the same name and is live from cluster/rpc/peer_s3_client.rs and remote_disk.rs — the two have to be told apart by type, not by name.
- LocalDiskWrapper::new_with_health and check_id.
- os.rs file_exists and lock_destination_directory_for_path_access.
Kept with allows: DiskHealthTracker's set_faulty, mark_offline, waiting_count and last_success have test callers in remote_disk.rs, so they only look dead in the lib target. to_disk_error, remove_all and sync_dir_files are asserted by their own files' tests. The reclaim, mmap and path-cache field groups are written but never read back.
Placement follows the same rule as the earlier roots: per-method allows inside impl DiskHealthTracker and impl LocalDisk, since both are mostly live and a block-level allow would be a smaller version of the blanket this issue removes. Struct-level allows are used only where the warning covers that struct's own fields. The three cached_read_env! functions take their allow inside the macro invocation, before the fn line, because the macro forwards $(#[$meta:meta])* onto the generated item.
Verification, four lanes warning-free: default, --tests, --features rio-v2 --tests, --features test-util --tests. cargo nextest run -p rustfs-ecstore 4096 passed; clippy --lib --tests -D warnings clean; make pre-commit exit 0. The Linux lane is not covered locally and is left to CI.
Ref rustfs/backlog#1823 (step 2).
* chore(ecstore): correct two dead_code reasons in the disk root
check_valid_path and reject_symlink_components have no caller at all -
not even a test - so 'asserted by this file's tests' misreads them as
covered. Both are method wrappers over live free functions; say that
instead.
Ref rustfs/backlog#1823.
* test(ecstore): pin madmin-compatible ARN partition contract
Red-light evidence for backlog#1675 P1-7: madmin-go's ParseARN
hard-rejects any ARN that does not start with 'arn:minio:', while RustFS
generates and only accepts 'arn:rustfs:'. mc/madmin tooling therefore
cannot decode RustFS remote-target listings, and MinIO-era replication
configs are rejected as StaleTarget when re-registered. The new tests
pin the target contract (generate arn:minio:, parse both partitions,
reject unknown partitions) and fail against the current single-partition
gate.
* fix(ecstore): mint bucket-target ARNs in the madmin arn:minio partition
madmin-go's ParseARN hard-rejects any partition other than 'arn:minio:',
so native mc/madmin tooling could not decode RustFS remote-target
listings, and re-registering a MinIO-era replication config failed its
StaleTarget check against freshly minted arn:rustfs: targets
(backlog#1675 P1-7, route A).
- ARN Display now emits 'arn:minio:'; FromStr accepts a {minio, rustfs}
partition whitelist (the legacy partition stays readable forever for
persisted bucket-targets.json / replication configs). The whitelist is
the only structural gate — BucketTargetType::from_str never fails —
so it deliberately rejects foreign partitions such as arn:aws:.
- No data migration: every runtime match between targets, rules and
stats keys is full-string equality, so existing arn:rustfs: targets
keep matching their persisted rules; site replication already
preserves MinIO-era ARNs on reconcile (pinned by existing tests).
- Rolling upgrade note: upgrade all cluster nodes before creating new
remote targets — a not-yet-upgraded node rejects remove-remote-target
for a freshly minted arn:minio: ARN with BucketRemoteArnInvalid.
- Out of scope: notification/SQS ARNs (crates/targets) keep the
arn:rustfs:sqs: partition; they have their own compatibility story.
* test(replication): pin missing LWW timestamp header transport
Red-light tests for the replication timestamp three-header contract:
- put_object_headers_carry_replication_timestamp_headers pins that
PutObjectOptions::header() must emit the
x-{rustfs,minio}-source-replication-{tagging,retention,legalhold}-timestamp
headers when the internal timestamps are set (currently missing).
- test_put_opts_from_headers_gates_replication_timestamp_persistence_on_authorization
and test_complete_multipart_opts_persist_replication_timestamps_when_authorized
pin that an authorized replication PUT / multipart complete must persist
the inbound timestamps into the internal metadata keys while unauthorized
requests must not (currently never persisted).
- fake_s3_target journals the three timestamp headers per request
(ReplicationTimestampHeaders on RequestRecord) so sender-side e2e
assertions can observe what a real target receives; self-test included.
* fix(replication): transport and persist LWW timestamps for tag, retention, and legal hold
Active-active conflict resolution for concurrent tag/retention/legal-hold
edits needs the source's per-category modification times on both sides of
the wire; the three AdvancedPutOptions timestamp fields were dead and the
headers were neither sent nor parsed.
- Emit x-{rustfs,minio}-source-replication-{tagging,retention,legalhold}-
timestamp from PutObjectOptions::header(); names and RFC3339 values
interoperate with MinIO (minio-go constants.go, object-api-options.go),
pinned by a header_compat wire-name test.
- Default the three AdvancedPutOptions timestamps to UNIX_EPOCH and skip
epoch values in header(), so "never modified" is not sent as a
modification made now.
- Parse the headers only on authorized replication PUTs and multipart
completes, expose them as Option<OffsetDateTime> on ObjectOptions, and
persist them into the dual-prefix internal metadata keys so the
outbound pass (replication_target_boundary) reads the source's
timestamps instead of the mod_time fallback.
- Record the local tagging timestamp in the PutObjectTagging and
DeleteObjectTagging eval metadata, mirroring the object-lock handlers;
without it the sender only ever had the mod_time fallback to offer.
Receiver-side LWW comparison (keep newer stored category metadata over a
stale inbound copy) is left as a TODO at the parse site.
* fix(replication): load the stored tagging timestamp independently of remaining tags
Review: DeleteObjectTagging persists the tagging-timestamp internal key
but leaves the object tagless, and the outbound mapper only loaded the
key inside the user_tags-nonempty branch — the deletion's LWW timestamp
stayed at the epoch and the header was omitted, so the deletion could
never win conflict resolution on the replica. The stored key is now
loaded unconditionally; the mod_time fallback still applies only while
tags exist (MinIO parity), and a tagless object without the key keeps
the epoch default (no header). Deletion-path regression test added.
* fix(storage): reserve replication transport names at metadata ingest
Second review round: a client PUT of
x-amz-meta-x-rustfs-source-replication-tagging-timestamp materialized
the bare transport key as stored user metadata. The outbound
replication header builder forwards user metadata verbatim on a
server-authorized request, so the receiver would persist the
attacker-chosen value as trusted internal LWW state — and for a
tagless object nothing later overwrites it.
The ingest namespacing guard now reserves the whole
x-rustfs-source- / x-minio-source- families (the new timestamps and
their siblings: source-mtime/-etag/-version-id/-replication-request),
folding forged keys back under x-amz-meta-. Forged-ingress regression
covers both prefixes and a sibling.
* fix(replication): harden timestamp replay
* fix(app): route retention helper through facade
---------
Co-authored-by: overtrue <anzhengchao@gmail.com>
* test(site-replication): pin ILM expiry merge contract for incoming lc-config
Red-light evidence for backlog#1675 P1-1: the lc-config receiver
overwrites the whole local lifecycle config with whatever the peer
sends (and deletes it wholesale on peer delete), so an expiry-only
document erases the receiver's local tier/transition rules, and peer
transition rules get installed across sites. The new tests pin the
MinIO mergeWithCurrentLCConfig semantics plus RustFS hardening:
- incoming expiry documents merge with (never replace) local rules
- local transition sides are authoritative for same-id rules
- incoming transition fields are discarded at the trust boundary
- dropped expiry rules strip the expiry side but keep transitions;
pure-expiry rules are removed
- delete merges with the empty set instead of dropping the config
- disabled rules survive; abort-mpu-only rules stay site-local
- deterministic order (idempotent re-delivery) and expiry_updated_at
stamping for the staleness axis
All fail against the current overwrite implementation (identity
extraction of merge_incoming_lifecycle_config).
* fix(site-replication): merge incoming ILM expiry documents instead of overwriting
The lc-config receiver replaced the whole local lifecycle config with
the peer's document (and deleted it wholesale on peer delete), so an
expiry-only update erased the receiver's local tier/transition rules,
and a peer's transition rules were installed across sites
(backlog#1675 P1-1).
Receiver (apply_bucket_meta_item):
- lc-config now merges via merge_incoming_lifecycle_config, mirroring
MinIO's mergeWithCurrentLCConfig with a trust-boundary hardening:
incoming transition fields are discarded outright; the local
transition side of a same-id rule is authoritative. A peer delete
merges with the empty set — pure-expiry rules go away, transition
rules survive with their expiry side cleared, and only an empty
result deletes the config file.
- Staleness moves to the expiry axis (config.expiry_updated_at):
lifecycle_config_updated_at also moves on local transition-only
edits, which shadowed newer peer expiry updates.
- Receiver-side replicateILMExpiry gate, symmetric with the sender
hook (previously any peer could install expiry rules while the
option was off).
- Rule order is deterministic (local order, incoming-new appended), so
re-delivering the same document is byte-stable and does not rewrite
bucket metadata per broadcast.
Sender:
- Both admin choke points — the bucket-meta hook and the SRInfo bucket
entry feeding bootstrap/repair and consistency views — now emit only
the expiry subset (transition fields stripped, non-expiry rules
dropped). MinIO receivers install incoming rules verbatim, so
transition rules must never leave the site. An unparseable local
config is forwarded unfiltered rather than degraded to a delete.
Not covered here (follow-up): a two-site e2e with a real tier backend
to exercise transition-rule preservation end to end; receiver-side
validate_transition_tier for merged configs.
* fix(site-replication): close ILM merge review findings
Adversarial review of the lc-config merge surfaced four real defects,
all fixed here:
- Deletion tombstone regression: with the staleness axis moved to the
in-config expiry_updated_at, a deleted lifecycle config fell back to
UNIX_EPOCH and any delayed stale broadcast could resurrect deleted
expiry rules. The axis now falls back to the whole-config write time
(which survives deletion in bucket metadata as the deletion's lower
bound), also covering legacy configs that predate the axis field.
- MinIO zero-rule documents: MinIO's delete tombstone / transition-only
state marshals a lifecycle document with no <Rule>, which the strict
s3s deserializer rejects — the receiver now recognizes it as the 'no
expiry rules here' statement (delete semantics) instead of erroring
on every MinIO heal pass.
- Inflated expiry axis at the sender: PutBucketLifecycle stamped
expiry_updated_at unconditionally, so a transition-only edit advanced
the axis and let this site's stale expiry subset shadow and roll back
newer peer expiry edits fleet-wide. The stamp is now conditional
(expiry subset present before or after the edit, MinIO parity), the
hook item travels with the config's expiry axis (UNIX_EPOCH when the
site has none), and the SRInfo bucket entry feeds bootstrap/repair
the same axis instead of the whole-config write time.
- Del-marker parity: MinIO's CloneNonTransition never emits del-marker
or abort-mpu fields, so treating del_marker_expiration as traveling
expiry let a MinIO broadcast delete this site's del-marker-only
rules. Both fields are now site-local on every edge: stripped from
outbound subsets and inbound rules, restored from the local side on
same-id merges, and never a deletion criterion.
Receiver-side validation of merged configs (object-lock / tier
constraints, MinIO runs finalLcCfg.Validate) remains a follow-up.
* fix(site-replication): close the second ILM review round
- Missed-delete repair: a deleted expiry state now travels through
bootstrap/repair as an explicit timestamped lc-config delete item
(lifecycle_expiry_statement distinguishes deletion — whole-config
write time advanced past the created backfill — from never-configured
buckets and from transition-only configs without an expiry axis,
which say nothing). A peer that missed the live delete converges on
repair; the receiver's staleness guard protects newer peer state.
- Strict tombstone recognition: only a well-delimited zero-rule
<LifecycleConfiguration> document maps to delete semantics; truncated
or foreign payloads that fail the strict deserializer are rejected
instead of being treated as a delete that erases local expiry rules.
- Staleness fallback axis narrowed: the whole-config write time is used
only for deleted or legacy-with-expiry state. A present
transition-only config without an expiry axis compares at epoch — its
whole-config time moves on transition edits and must not shadow or
block independent peer expiry updates and same-timestamp repairs.
* fix(site-replication): validate tombstone children structurally
Second review round: a well-delimited root could still smuggle
malformed content — e.g. <LifecycleConfiguration><ExpiryUpdatedAt>
</LifecycleConfiguration> passed the no-<Rule check and was applied as
a delete. The tombstone body must now be a sequence of well-formed
simple children (matching open/close or self-closing, no nested markup,
no stray text, none named Rule); anything else surfaces InvalidRequest.
Malformed-child cases pinned in the recognition test.
* fix(site-replication): serialize lifecycle merges
---------
Co-authored-by: overtrue <anzhengchao@gmail.com>
overtrue