* fix(storage): restore multipart disk compression and make the legacy decompressor resumable
Multipart uploads have bypassed disk compression since #5169 removed the session marker as a stopgap for mid-stream GET failures. The actual root cause was never the multipart layout: the legacy DecompressReader reset its payload consumption state on every poll re-entry, so a Poll::Pending in the middle of a block payload (routine under the erasure duplex) desynchronized the block framing and surfaced as LZ4 frameType errors. This rewrites the decoder as a resumable state machine, restores the multipart session compression marker, reports logical part sizes in ListParts, and makes the rebalance migration read raw stored bytes so compressed and encrypted objects survive migration verbatim.
Fixes#5957. Internal tracking: backlog#1848, backlog#1850.
* feat(storage): stage multipart compression behind RUSTFS_COMPRESSION_MULTIPART_ENABLED
Review follow-up: a rolling-upgrade window must not create new compressed multipart objects while pre-fix nodes (whose decompressor is not resumable) may still serve reads. The session marker is now additionally gated on RUSTFS_COMPRESSION_MULTIPART_ENABLED, default off, so the restored capability stays dark until the operator confirms fleet convergence. The default flips per the multipart-compression-default-off-window entry in docs/architecture/compat-cleanup-register.md once the minimum supported direct-upgrade release ships the resumable decoder.
* chore(compat): satisfy the cleanup-register guard for the multipart compression switch
The architecture guard requires every backticked identifier in a register entry to carry a RUSTFS_COMPAT_TODO source marker: keep only the entry slug in backticks, and add the marker (with its literal Remove-after condition) at the switch definition.
* chore(rio): drop a dead store in the poison guard and note the end-block branch
Review follow-up: the poison gate re-assigned an already-true flag, and the COMPRESS_TYPE_END branch reads as dead without stating that the writer never emits an end block — that absence is exactly what lets concatenated per-part streams decode as one.
* fix(s3): report empty compressed multipart part size
* fix(s3): report empty encrypted multipart part size
* fix(tier): decrypt transitioned objects instead of serving their ciphertext
A GET on a managed-SSE object that lifecycle had transitioned to a remote tier returned the ciphertext with the plaintext's Content-Length and no error: silent corruption on read-through, and worse than a failed request because nothing signals it. Restore of the same object failed server-side with IncompleteBody while POST ?restore still answered 200, so the object simply never came back and HEAD never showed an x-amz-restore marker.
Both symptoms are one cause. The transitioned read path built its fetch through new_getobjectreader, which decides nothing about encryption: it derived the range from the parts table — whose sizes are PLAINTEXT sizes — then used that range to fetch the object's STORED bytes from the tier, and handed the stream to the caller without any decrypt transform. The GET therefore served the first plaintext-length bytes of ciphertext; the restore copy-back, which validates against the stored size, came up short by exactly the encryption overhead.
The path now builds the same ReadPlan the local read path uses, so a single place decides how stored bytes map to requested bytes. ReadPlan gains a two-phase API — build_for_request to learn the storage coordinates before issuing the tier fetch, into_object_reader to wrap the returned stream — because the tier fetch has to be positioned before a stream exists. The encryption resolver reaches the path from InstanceContext, the same source the local read uses.
A restore read additionally stops synthesizing a range from the part number. A restore serves the stored representation (restore_request_active already forces the Plain branch), so a plaintext-coordinate range would be reinterpreted as a storage range and truncate the payload by its encoding overhead. An explicit caller range is already in storage coordinates on that path and is still honored, which two existing tests pin.
crates/e2e_test/src/kms/kms_ilm_sse_kms_test.rs drops its #[ignore]: the transition test now runs and asserts the plaintext round-trips byte-identically through transition, read-through and restore. The same file had its enforcement switch stuck at false from a control experiment; it is back to true, so the test again exercises what its name and module docs claim.
Fixes#6025. Refs rustfs/backlog#1582, rustfs/backlog#1637.
* test(tier): pass resolver to transitioned reader tests
* test(e2e): fold seven identical POST-policy exact-mismatch tests into one table
The seven *_policy_mismatch tests in multipart_auth_test.rs were body-identical after literal normalization: the policy pins one field to an exact value, the form sends a different value, and the upload must be rejected with 400 InvalidPolicyDocument naming the field. Each test booted its own full server.
They fold into one table-driven test on the run_post_object_policy_case helper introduced by the PR1 fold. Every row keeps its original test's exact bucket, key, field name, policy value, mismatched form value, body bytes, and expected error strings — including the three rows that asserted the stronger <Code>InvalidPolicyDocument</Code> form. The pinned condition is built with an explicit serde_json::Map since the field name is now a table parameter.
cargo nextest list reports 97 tests for this module; the inventory row is updated in the same diff (103 -> 97).
Ref rustfs/backlog#1838 (PR2).
* test(e2e): fold the remaining POST-policy duplicate groups (15 tests) (#6018)
Completes the multipart_auth table-driven fold: the six remaining body-identical groups collapse onto the shared run_post_object_policy_case helper.
- Seven single-field exact-mismatch tests (cache-control, expires, tagging, storage-class, content-type, success_action_status, metadata-field-exact) join the existing exact-condition mismatch table as rows — same shape as the PR2 fold.
- The two object-lock mismatch tests become a two-row table (policy pins mode + retain-until-date, one form field mismatches).
- The three SSE-KMS parameter mismatch tests become a three-row table (policy pins the SSE mode plus one KMS parameter, form differs).
- The three SSE-KMS outside-policy tests become a three-row table pinning the distinct contract: an undeclared KMS parameter sails past policy validation and is rejected at runtime with 501 NotImplemented, not a policy error.
Every row keeps its original test's exact bucket, key, field names, values, body bytes, and expected status/code strings. cargo nextest list reports 85 tests for the module; the inventory row is updated in the same diff (97 -> 85).
Ref rustfs/backlog#1838 (PR3).
The peer-edit delivery fence from #5882 treated an equal applied generation as stale. One edit legitimately fans out one delivery per peer record under a single generation (the ILM-expiry edit sends every peer's record), so the receiver applied only the first body, raised its high-water mark, and silently acked-success while dropping the rest — enableILMExpiryReplication never converged on receiving sites and the three-node nightly e2e failed deterministically (issue #5767).
Only a strictly newer applied generation is stale now. Equal generation implies the same logical edit and re-applying a delivery is idempotent (update_peer overwrites the peer record; the mark is raised with max), while strictly older deliveries — the cross-node ordering case the fence exists for — stay rejected.
Adds a composed unit test driving three same-generation bodies through the receiver's fenced sequence, and widens the replication e2e's two site-replication wait helpers from a 10s polling ceiling to the 30s deadline the file's other waits use.
PutBucketVersioning with Status=Suspended on a bucket that carries a replication configuration now fails with InvalidBucketState, matching AWS S3 and MinIO. Suspension would start minting null versions that the versioned replication engine can never converge — the state is unreachable on AWS and MinIO, and the nightly acceptance-matrix e2e that tried to exercise it failed every night since it landed (issue #5767).
The acceptance-matrix test tail now pins the rejection contract (InvalidBucketState) and verifies a fresh matched PUT still replicates with a real version id after the rejected suspension.
The nine *_missing_from_policy_conditions tests in multipart_auth_test.rs were literal-for-literal identical after normalization: policy pins bucket + key + content-length-range, the form smuggles one extra field the policy never declared, and the upload must be rejected with 403 AccessDenied naming the field. Each one started its own full server.
This adds the run_post_object_policy_case helper (parameterized by bucket, key, policy conditions, extra form fields, file body, and expected status/code/mention, with a per-case assertion prefix) and folds the nine tests into one table-driven test with nine rows. Every row keeps its original test's exact bucket, key, field name/value, body bytes, and expected error strings — including the two rows that asserted the stronger <Code>AccessDenied</Code> form — so no poison value is lost. The helper's signature is general enough for the policy_mismatch and sse-kms groups planned as PR2/PR3.
cargo nextest list now reports 103 tests for this module; the inventory row said 109 while the file actually held 111 before this change (stale by two), so the inventory is set to the measured 103 in the same diff per the issue's hard constraint.
Ref rustfs/backlog#1838 (PR1).
* test(heal): strengthen replacement e2e evidence
* test(heal): fix replacement e2e barriers
Accept the real post-fault scanner failure-to-idle sequence as the live disk loss barrier, and preserve the first definitive completed status while only resampling the physical census for premature-completion confirmation.
Co-Authored-By: heihutu <heihutu@gmail.com>
---------
Co-authored-by: houseme <housemecn@gmail.com>
Co-authored-by: heihutu <heihutu@gmail.com>
* test(heal): add privileged replacement rebuild e2e
Add ignored Linux-only 3x4 automatic replacement coverage for EC8+4 and EC6+6. The tests use real tmpfs mounts in an isolated mount namespace, wait for scanner-driven replacement recovery status, and verify the replacement target with per-version xl.meta and part.N physical census without invoking Admin deep heal.
Co-Authored-By: heihutu <heihutu@gmail.com>
* fix(test): avoid unsafe in privileged replacement e2e
Co-Authored-By: heihutu <heihutu@gmail.com>
* test(heal): harden privileged replacement e2e
Co-Authored-By: heihutu <heihutu@gmail.com>
* test(heal): prove absent replacement recovery witness
Co-Authored-By: heihutu <heihutu@gmail.com>
* test(e2e): prove absent replacement observation
Stop the target node before detaching the test mount so RustFS releases its mount lease instead of continuing to serve the old tmpfs through an open fd. Restart the node with the endpoint absent and wait for the scanner's real readiness rejection in that node's log.
Assert the absent window has no replacement intent, completion proof, checkpoint, healing marker, or Admin v4 durable record for the target before mounting the blank replacement and waiting for automatic recovery plus physical shard census.
Co-Authored-By: heihutu <heihutu@gmail.com>
* test(e2e): streamline cluster log capture
Move cluster-node log capture out of ClusterNode and into per-node cluster launch configuration so the privileged replacement E2E uses an explicit harness API instead of mutating node identity data.
Reuse the same stdout/stderr capture helper for single-node and cluster processes, and pin the per-node capture behavior with a focused common test.
Co-Authored-By: heihutu <heihutu@gmail.com>
* test(e2e): harden privileged replacement proof
Co-Authored-By: heihutu <heihutu@gmail.com>
---------
Co-authored-by: heihutu <heihutu@gmail.com>
P1-20 (rustfs/backlog#1675 B2, test-only). No prior test wrote objects
BEFORE the replication rule arrived, leaving the scanner's existing-object
resync pass — the only channel for such objects — without end-to-end
coverage, and the enqueue truth table partially unpinned at unit level.
e2e (both negative cells are contracts, asserted over multiple fast-scanner
cycles next to a replicated control key that proves the scanner and the
live path are running):
- test_scanner_compensates_existing_objects_across_write_paths: plain PUT,
CopyObject and Snowball auto-extract products written pre-rule all
converge via scanner compensation; a null-version object (PUT before the
bucket became versioned) is pinned as never compensated (the scanner heal
gate skips nil-version objects).
- test_scanner_never_compensates_when_existing_object_replication_disabled:
ExistingObjectReplication=Disabled is a contract, not a delay — existing
keys stay absent while post-rule writes replicate normally.
Unit truth-table pins (crates/replication):
- queue.rs: an empty replicate decision (Disabled existing-object, inbound
REPLICA) skips heal queueing for every status; Completed without a resync
decision skips.
- operation.rs: existing-object resync without a reset replicates exactly
the never-replicated (Empty) objects.
Helper: put_bucket_replication_with_statuses parameterizes the previously
hardcoded ExistingObjectReplication status; the nextest count comments are
refreshed to the post-rebase totals.
* test(replication): pin the version-fidelity probe contract (red)
P1-19 (rustfs/backlog#1675 B2): the supported replication contract is
targets that adopt the source version id — a target that mints its own ids
silently breaks every version-addressed operation that follows (version
deletes, heal re-drives never match), diverging the two sides with no
signal. replication-check already captures the probe PUT's response version
id but never compares it.
Red evidence (current main): against a FakeS3Target with
assign_own_version_ids enabled, ?replication-check returns Status "OK" —
the drift is invisible.
test_replication_check_flags_version_minting_target expects a
VersionFidelity phase that fails with the machine-readable code
BucketRemoteTargetVersionMismatch, skips the later mutation phases, and
still cleans up the probe via the version id the target actually assigned.
Test infra: FakeS3Target gains assign_own_version_ids (models a generic S3
service; validated-but-not-mirrored source version headers) and a
prefix+max-keys ListObjectVersions implementation (the probe key allocation
requires it); stored_versions accessor duplicated from the P1-21 branch
(identical code, resolves clean on merge).
* fix(replication): probe the version-identity contract in replication-check
P1-19 (rustfs/backlog#1675 B2, plan B). Replication only converges on
targets that adopt the source version id: version-addressed deletes and
heal re-drives address the source id, so a target that mints its own ids
silently diverges — nothing surfaced this. replication-check already
captured the probe PUT's response version id but never compared it.
- The probe PUT now carries the source version as `?versionId=` (the exact
shape live replication uses since P0-5, and the only shape MinIO
consumes; the internal source-version-id header alone would let the
probe pass against targets the real data path drifts on). Reuses
ecstore's append_version_id_query through the api facade.
- New VersionFidelity phase: the probe PUT's response version id must
equal the sent source id. On mismatch the phase fails with the
machine-readable extension key `"Code": "BucketRemoteTargetVersionMismatch"`
(new optional Code field on phase statuses; Go decoders ignore unknown
keys), the overall target fails, the later version-addressed mutation
phases are skipped, and cleanup still removes the probe via the id the
target actually assigned (with the existing list-based sweep as backstop
when the target returns no version id at all).
- Runtime half: TargetClient::put_object now returns the assigned version
id (mirroring remove_object), and the replication PUT path audits it —
every drifting PUT increments
rustfs_replication_version_identity_drift_total and the first drift per
target ARN logs a structured warning pointing at ?replication-check.
The drift judgment is a pure function with an exemption-matrix test
(empty / literal "null" / nil-uuid sources carry no contract).
- docs/operations/replication-check.md documents the phase and the code.
Red -> green: test_replication_check_flags_version_minting_target (fake
target with assign_own_version_ids; on main the check reported Status
"OK"). The probe's query shape is pinned by a journal assertion (revert
of the query hunk alone fails it), probe-level unit tests cover the
mismatch/mirror matrix including cleanup addressing the minted id, and
the existing success e2e now asserts VersionFidelity OK against a RustFS
target. Adversarial review (seven roles): non-blocking; noted follow-ups
are the multipart runtime audit (the probe phase already pins the
contract) and per-target re-warning after reconfiguration.
* fix(e2e): stop the fake target self-deadlocking on version-id minting
The assign_own_version_ids flag was read with a fresh `lock(&self.store)`
inside two paths that already hold that guard — delete_object's
marker-creation branch and create_multipart_upload — and the store mutex
is not reentrant, so both hung forever (CI: the fake target's own
multipart and delete-marker tests ran >1560s until the job was
cancelled). Read the flag from the live guard instead.
The replication e2e paths did not catch this: a version-addressed purge
DELETE never mints an id, and the probe PUT reads the flag before taking
the guard.
* chore(test): refresh the nextest replication count invariant
The e2e-smoke/e2e-repl-nightly split comment is descriptive metadata
(authority: `cargo nextest list`); refresh it to this branch's
post-rebase total.
* test(replication): pin delayed delete-marker purge failure handling (red)
P1-21 (rustfs/backlog#1675 B2): two failing e2e tests that pin the missing
failure handling of the delayed delete-marker purge:
- test_delayed_delete_marker_purge_retries_after_transient_target_failure:
four scripted 503s outlast every existing channel (version-purge
replication + its in-process MRF fast retries + the watcher's single
attempt = 3 target DELETEs, all faulted in the recorded run); the
replicated marker is stranded on the target forever.
- test_delayed_delete_marker_purge_exhaustion_persists_to_mrf_and_replays_on_restart:
exhausted purge intents never reach the durable MRF journal, so a restart
replays nothing (recorded run: 3 faulted attempts, zero post-restart).
Red-light evidence (current main):
- Test A: FAILED, journal shows 3x DeleteObject fault=Status(503), no clean
attempt, target marker still present after 15s.
- Test B: FAILED after 468s, same 3 faulted attempts, no purge DELETE after
restart, marker still present.
Test infra: FakeS3Target::stored_versions() exposes per-key version state so
purge tests assert target state instead of inferring it from the journal;
nextest count comments 36->38 nightly / 56->58 total.
* fix(replication): retry, persist and replay failed delete-marker purges
P1-21 (rustfs/backlog#1675 B2). The delayed delete-marker purge was
fire-and-forget: the target DELETE discarded its result (`let _ =`), a
missing target client was silently skipped, and nothing recorded the intent
— one transient target error stranded the replicated marker on the target
forever. Separately, `replicate_delete_with_outcome` held its outcome
hostage to `!requires_delayed_purge`, pinning every delete-marker MRF entry
to Missed so the durable backlog retained them permanently.
Changes:
- `replicate_delete_marker_purge_to_targets` now reports per-target
results (warn + metrics on failure, including `target_client_missing`),
supports retrying only the failed targets, and treats a target-side
NoSuchKey/NoSuchVersion as purge success (strict-404 targets must not
retain the intent forever).
- The delayed watcher (`watch_and_purge_source_delete_marker`) retries
failed targets across its 5x1s watch window; on exhaustion it persists
the purge intent to the durable MRF journal via the new
`ReplicationPoolTrait::persist_mrf_entry` (journal-only on purpose: live
re-dispatch would loop unboundedly against a down target). Intent entries
are shaped as marker-creation deletes so replay funnels into the stale-
marker branch.
- The stale-marker branch (source marker already gone) now purges the
targets instead of silently returning success — closing a latent leak —
and reports the purge result as the replay outcome. Heal callers retry
for the full window (the startup MRF processor runs before target
clients initialize); live callers attempt once and fall back to a fresh
durable intent, so a down target cannot pin a replication worker.
- The outcome formula (extracted as `replicate_delete_outcome` and pinned
by a unit test) no longer includes the delayed purge, so successfully
replayed delete-marker entries are acknowledged instead of retained
forever.
Verification: red -> green e2e pair (transient-failure retry; exhaustion ->
durable MRF -> restart replay -> second-restart zero-replay ack) plus unit
tests; `make pre-commit`, logging guardrails, clippy (ecstore + e2e_test)
all clean; full ecstore lib suite 3729 passed (3 pre-existing local-DNS
kubernetes endpoint failures reproduce without this change).
Adversarial validation (7 roles): no blocking findings after adding the
outcome-formula guard test. Known residuals recorded in the PR: watcher
shutdown window (intent not yet persisted), rolling-downgrade replay acks
without purging (equals pre-fix behavior), and replay falling back to the
source version id on targets that mint their own version ids (P1-19).
* chore(test): refresh the nextest replication count invariant
The e2e-smoke/e2e-repl-nightly split comment is descriptive metadata
(authority: `cargo nextest list`); refresh it to this branch's
post-rebase total.
* fix(replication): purge the marker version the target actually assigned
Review follow-up (#5864), two real defects:
- The delayed purge watcher was spawned with the pre-merge `dobj`, so the
per-target marker version ids this round recorded were invisible to it.
Against a target that mints its own ids the purge fell back to a
source-derived id, the target answered the versioned DELETE with an
idempotent 204, and that "success" cleared the retry set while the real
marker stayed behind. The watcher now receives the merged replication
state (`drs`), which folds this round's target-assigned ids in.
- A target whose recorded version metadata is inconsistent was skipped
without entering `failed_arns`, so an empty result made both the watcher
and the MRF replay treat a purge that issued no DELETE as successful and
drop the intent. The refusal is now a per-target failure (own metric
label): the leak stays visible and the intent is retained instead of
being acknowledged. The version decision also moved ahead of the client
lookup, so the refusal is decided from metadata alone.
Tests: a new e2e drives a fake target with `assign_own_version_ids`, which
ignores the forwarded source-version header for both objects and delete
markers, and asserts the replicated marker is really gone; a unit test
pins the corrupt-metadata refusal as a failed outcome without any target
client registered. The detached-watcher shutdown window is documented at
the watcher as a known non-durable window with the write-ahead follow-up
spelled out.
Add a replacement recovery peer RPC so Admin v4 can distinguish definitive cluster proofs from unsupported, unavailable, or conflicting peer state without extending the existing background heal v3/v1 status protocol.
Co-authored-by: heihutu <heihutu@gmail.com>
Complete the encrypted-object replication series (backlog#1783, PR-C of
3, after #5872 and #5885): SSE-C objects replicate as ciphertext
passthrough — the source holds no customer key, so the stored bytes and
their encryption metadata travel verbatim and the replica decrypts only
with the original customer key, single-part and multipart.
- Sender: SSE-C objects read raw (raw_data_movement_read), transfer at
ciphertext size, and range multipart parts over stored part sizes.
- Receiver: authorized replication PUTs restore the stored SSE-C keys
from the transport headers (exact lowercase forms - the read-path
check is case-sensitive), set ObjectOptions.preserve_ciphertext, and
skip compression, bucket-default SSE, and sse_encryption behind one
restore-derived gate. Multipart uses an internal session marker to
store parts verbatim and strips it on complete.
- Convergence: the replication HEAD sends
x-rustfs-source-replication-check; the target authorizes it as
ReplicateObjectAction and skips SSE-C read validation for that
request only, so keyless convergence HEADs see etag/size/mtime
instead of 400 and SSE-C replicas stop re-driving forever.
- e2e: SSE-C contract flips to a key-gated readable replica (no-key and
wrong-key GETs fail - the direct silent-plaintext detector); new
multipart passthrough contract with ETag/marker/stability assertions.
Open the managed-SSE replication gate (backlog#1783, PR-B of 3, after
#5872): the replication reader already decrypts through the injected
object-encryption resolver, so the source sends plaintext plus an
encryption intent header (AES256 / aws:kms, never the source key id) and
the target re-encrypts on its normal PUT path with its own KMS. No DEK
crosses sites.
- replication_put_object_options: fail closed only on Unsupported;
insert the SSE intent after the strip loop.
- TargetClient::create_multipart_upload sends the full opts.header()
set, fixing multipart replicas losing content-type/user metadata
(plaintext included).
- Preserve source ETag and mtime on replicas (authorized replication
only): receiver wires x-rustfs-source-etag into preserve_etag for PUT
and CompleteMultipartUpload, resolve_complete_etag consumes it, and
complete options carry source_etag/source_mtime (absent mtime
degrades to epoch, not now_utc). Without this every replication HEAD
comparison re-drives re-encrypted objects forever.
- e2e: managed SSE contracts flip to success on an independent-KMS
dual-process pair (byte-identical plain GET proves target-owned
envelopes; ETag/mtime preserved; version stable across scanner
cycles; resync converges; multipart keeps structure and metadata);
new target-without-KMS fail-closed contract; SSE-C stays FAILED.
Co-authored-by: houseme <housemecn@gmail.com>
* fix(admin): align replication-reset responses with madmin ResyncTargetsInfo shape
The replication-reset and replication-reset-status responses serialized
their shell as "Targets" and per-target fields in PascalCase, while
madmin-go ResyncTargetsInfo/ResyncTarget expect the "target" shell key
and lowercase field tags (arn/resetid/resyncStatus/replicationCount/
completedReplicationSize/failedReplicationCount/failedReplicationSize).
Go json decoding is case-insensitive per field, but Targets vs target,
Status vs resyncStatus and the size/count key names cannot match, so
mc replicate resync decoded empty results.
Rename the serde tags to the exact madmin wire shape, keep the
ResetBeforeDate/Error RustFS extension keys (unknown keys are ignored
by Go decoders), pin the shape with a snapshot unit test, and update
the e2e client DTO to decode the madmin shape.
* fix(admin): stream bare madmin DiffInfo documents from replication diff
POST /v3/replication/diff returned a single enveloped object
({Entries, IsTruncated, ScannedVersions}) while madmin-go
BucketReplicationDiff decodes the body with a json.Decoder loop over
bare DiffInfo documents. The envelope decoded as exactly one DiffInfo
with an empty object, so mc replicate diff printed a phantom empty row
instead of the real backlog.
Emit one DiffInfo JSON document per line by default, using the exact
madmin json tags (object/versionId/rStatus/deletemarker/lastModified;
Size stays as a RustFS extension key that Go decoders ignore). The
enveloped shape moves to the opt-in ?aggregate=true RustFS extension,
which remains the only carrier of scan-coverage metadata; a truncated
default-mode scan is surfaced via a warn tracing event instead of
in-stream. Pin both shapes with unit tests and tighten the e2e helper
to reject any envelope in the stream.
* feat(replication): validate replication config structure before persisting
PutBucketReplication accepted structurally invalid configurations that
MinIO's replication.Config.Validate rejects: empty or oversized rule
lists, duplicate or negative rule priorities, over-long rule IDs,
filters carrying more than one of Prefix/Tag/And, and delete marker
replication enabled on tag-filtered rules. Such configs persisted
silently and later produced undefined routing (e.g. ambiguous priority
ties) instead of failing the PUT.
Add validate_replication_config_structure as a pure function in
rustfs-replication (limits documented as constants), surface it through
the ecstore api facade, and run it first in the PUT capability gate so
defects are named before any metadata write. Missing Priority counts as
zero for the uniqueness check, matching Go's zero-value semantics. The
self-target rejection deliberately stays at set-remote-target, where the
endpoint is known; a config can never reference a self-pointing ARN.
Document the rule-level Destination.StorageClass contract (use the
remote target's storage_class instead) and renumber the acceptance
matrix e2e to unique priorities, which MinIO would also require.
* test(replication): pin duplicated wire types with boundary reconciliation tests
rustfs-filemeta (xl.meta disk format) and rustfs-replication (MRF/resync
persistence format) deliberately each own ReplicationStatusType,
VersionPurgeStatusType and ReplicationState; the boundary converts
between them via as_str(), whose From<&str> impls fall back to Empty on
unknown tokens — a variant added on one side silently degrades to Empty
on the other.
Add reconciliation tests in replication_filemeta_boundary: exhaustive
matches with no wildcard arm on both sides of both enums (a new variant
fails compilation until the mapping is reconsidered), string-token
round-trip asserts (a token the other side does not recognize fails
instead of quietly becoming Empty), and a full-field ReplicationState
round-trip. Cross-reference the tests from both type definitions.
Struct drift was already compile-guarded by the exhaustive struct
literals in the conversion functions.
* docs(replication): define split completion criteria and milestone sequence
The ecstore replication split plan had no completion measure — the
boundary scaffolding risked ossifying because nothing said when the
migration counts as done. Record the criteria in the module inventory:
done means the Required Contracts table's 'Current dependency to
remove' column is empty; the end state moves pool/resyncer/state into
crates/replication, with the boundary micro-files dissolving as code
crosses the crate line (batch-merging them beforehand is explicitly
rejected — the guard scripts anchor on their file names, so merging is
churn with zero functional gain; only datatypes.rs can retire early).
Sequence the remaining work as M2 (resyncer pure decision logic, after
the oversized function splits) → M3 (worker runtime, highest risk,
last) → M4 (retire boundaries and guard entries). Refresh the stale
first-step text — the event sink / runtime contracts already landed —
and update the split-plan status table accordingly.
* fix(replication): align structural validator with MinIO semantics after adversarial review
Three interop corrections found by adversarial review of the new
structural validator, plus review fallout fixes:
- Delete-marker replication is now rejected only for a direct Filter.Tag,
not for tags inside Filter.And — MinIO's validator only inspects the
direct tag, and mc replicate add --tags "k1=v1&k2=v2" (delete-marker
replication on by default) puts multiple tags into And.Tags, so the
stricter check rejected mc-generated configs MinIO accepts.
- Rule ID length is measured in bytes (Go len semantics), not chars —
a 255-char multibyte ID must not round-trip into a config MinIO
rejects.
- An empty <Tag/> element (no key) counts as absent, matching MinIO's
Tag.IsEmpty(); console form serializers emit empty tags, which would
otherwise trip the exactly-one-of and delete-marker checks.
Also: repair the store-uninitialized PUT test whose empty-rules fixture
now (correctly) fails structural validation before reaching the store
lookup; pin the previously untested startTime madmin key in the
reset-status shape test; and signal a truncated default-mode diff scan
via the x-rustfs-replication-diff-truncated response header — the bare
madmin stream has no envelope, so a truncated scan was otherwise
indistinguishable from a complete healthy one (madmin/mc ignore unknown
headers).
* test(e2e): activate SSE-S3 replication contract and pin resync fail-closed path
The SSE-S3 replication contract e2e was ignored under backlog#1291
(silent plaintext replication); the fail-closed gate in
replication_target_boundary.rs closed that hole, so the ignore reason
expired. Un-ignore the test — it now pins the current fail-closed
contract (FAILED status, failure event, readable encrypted source,
stable absence of all target versions), verified green.
Add test_bucket_replication_sse_s3_resync_stays_fail_closed: drives the
existing-object resync path (PUT ?replication-reset) over a FAILED
SSE-S3 object and asserts the resync generation reaches a terminal
state without ever materializing a target version, with the
stays-absent window also spanning fast-scanner heal cycles. The new
start_bucket_replication_reset helper doubles as the madmin
ResyncTargetsInfo shape assertion (target[0].arn/resetid) for the
reset-start response.
Refresh the stale nextest count commentary (the module is at 20 fast +
36 nightly = 56 tests by cargo nextest list; the SSE-S3-ignored note no
longer holds).
* test(replication): expect CopyObject and snowball extract to schedule replication
Red-phase TDD tests for P0-6: CopyObject never consults the bucket
replication config (no pending stamp, no schedule, and the destination
inherits the source's stale replication status metadata wholesale), and
snowball auto-extract members are never scheduled either.
- usecase white-box: observe MUST_REPLICATE_OBJECT_CALLS for
execute_copy_object (currently 0, must be 1) and
execute_put_object_extract (currently 0, must be 2 for a two-member
archive), plus stale replication-status metadata cleanup assertions
(MinIO filterReplicationStatusMetadata parity).
- e2e: CopyObject destination and snowball-extracted members must appear
on the remote replication target and reach COMPLETED on the source.
Red evidence (before fix):
copy_object_computes_replication_decision_and_strips_stale_status
assertion failed: left: 0, right: 1
put_object_extract_computes_replication_decision_per_entry
assertion failed: left: 0, right: 2
* fix(replication): schedule replication for CopyObject and snowball extracted objects
CopyObject and snowball auto-extract never consulted the bucket
replication config: no PENDING stamp, no post-commit schedule, and no
scanner-heal backstop (heal only re-drives Pending/Failed objects, and
these objects carried no status at all). Worse, the copy path cloned the
source metadata wholesale, so a destination object inherited the
source's replication bookkeeping and could present a fake
COMPLETED/REPLICA state.
Mirroring the PUT path (single immutable decision drives both the
pending metadata and the post-commit schedule, rustfs/backlog#1320):
- execute_copy_object: strip the source's replication status metadata
(internal replication/replica status + timestamps under both
compatibility prefixes, plus x-amz-replication-status) for
non-inbound requests — MinIO filterReplicationStatusMetadata parity;
the cleanup runs before the decision so an inherited REPLICA status
cannot suppress it. Then compute must_replicate_object once, stamp
PENDING when it replicates, and schedule after the copy commits and
the self-copy lock guard is released. Inbound replica writes keep
their authorized metadata and are declined inside
must_replicate_object, so replicas are never re-scheduled outbound.
- execute_put_object_extract: same stamp + schedule per extracted
member object (MinIO PutObjectExtract parity).
- execute_put_object dispatch: an authorized inbound replication PUT is
stored verbatim instead of being re-dispatched into the extract path.
Extracted members keep x-amz-meta-snowball-auto-extract in their user
metadata and the replication client replays stored metadata as
headers, so the target used to try to untar each member's own bytes,
permanently failing replication for non-archive members (surfaced by
the new snowball e2e test).
Green evidence:
- copy_object_computes_replication_decision_and_strips_stale_status,
put_object_extract_computes_replication_decision_per_entry (red: 0
decisions; green: 1 and 2), plus the existing PUT/object-lock
decision-count tests stay green.
- e2e test_copy_object_replicates_to_target and
test_snowball_extract_replicates_members_to_target pass against two
live instances.
* fix(replication): accept explicit STANDARD destination storage class
The replication engine never reads Rule.Destination.StorageClass (replica
placement comes from the bucket-target config or the source object), yet the
validator rejected any config carrying the field. The console's add-rule form
always sends StorageClass=STANDARD, so every rule created through it failed
with InvalidRequest.
Tolerate exactly STANDARD as a no-op — semantically identical to omitting
the field — and keep rejecting every other value, which would be silently
ignored rather than honored. Document the deliberate omission from the
replication capability contract.
* feat(admin): support MinIO-style partial updates for set-remote-target
set-remote-target?update=true previously replaced every stored field and
required complete credentials in the body, so flipping a target's sync mode
from the console forced operators to re-enter the secret key, and real
mc replicate update bodies (madmin Clone() strips the secret) failed to
deserialize at all.
Adopt MinIO's TargetUpdateType contract: query params creds/sync/bandwidth/
path name the field groups to overlay onto the stored target, everything
else keeps its persisted value, and unsupported groups (proxy, healthcheck,
edge, edgeSyncBeforeExpiry) fail loudly. Credentials updates are skipped for
site-replication peer targets — probed by both scheme derivations of the
stored endpoint and the stored deployment id — because an operator never
knows the site replicator's credentials, and a body-supplied deployment id
is ignored on update since it anchors peer identity. madmin JSON aliases
(bandwidthlimit, storageclass, resetID, deploymentID, sessionToken) let mc
bodies parse under deny_unknown_fields.
e2e: cover a credential-free sync-only update preserving the stored
connection and the zero-ops no-op contract; align the missing-arn assertion
with the earlier validation error.
* chore(scripts): add two-site replication lab manager
site_replication_smoke.py spawns and manages two local rustfs processes,
pairs them via the site-replication admin API (idempotent), and verifies
bidirectional object replication. Subcommands: up/down/restart/status/logs/
smoke/info/remove/clean. Stdlib-only; requests are SigV4-signed the same
way as crates/e2e_test.
* chore(scripts): rename direction-suffixed payload variables for typos check
The typos linter reads the _ba suffix in payload_ba as a misspelling of
"by"; use payload_a_to_b / payload_b_to_a instead.
---------
Co-authored-by: overtrue <anzhengchao@gmail.com>
* fix: address rc.1 release blockers
* fix: route release guards through architecture boundaries
* fix: close remaining rc.1 regression gaps
* refactor: group multipart listing options
* fix: resolve rc.1 CI regressions
* fix(ecstore): keep bucket-config writes off the caller's stack
A bucket-config write nests incarnation resolution (which can drive legacy
migration and a peer fan-out), a full metadata load, and `save` — itself an
object PUT that pulls in the whole erasure write path. Every request that
mutates bucket config is already several futures deep, so inlining all of
that into one state machine overflows the 2MiB worker stack in debug builds.
Two CI lanes aborted with SIGABRT on this:
ILM Integration (serial)
rustfs app::lifecycle_transition_api_test::
compensation_driven_complete_multipart_upload_still_transitions
Test and Lint (swift)
rustfs-protocols::swift_metadata_persistence::
swift_metadata_writes_are_durable
Neither test file is touched by this branch and both lanes are green on
main. Stack-pointer probing showed ~780KiB consumed between
`metadata_sys::update` and the config read alone, with single hops of
363KiB (`update` -> `acquire_config_write_guard_for_incarnation`), 125KiB
and 105KiB.
Box the deep sub-futures on both read-modify-write paths (`update` /
`update_checked` and `update_config_with` / `update_config_with_checked`)
so each guard's own state machine stays small. Behaviour is unchanged;
`update` -> guard drops to 253KiB and both tests pass on the default stack.
* fix(lifecycle): unbreak restore under the bucket generation fence
The ILM lane aborted on a stack overflow before reaching these, so they
were never reported; with that fixed, four restore tests fail. All four
are green on main and none of their test files are touched by this branch.
1. RestoreObject and ListMultipartUploads hard-required
`opts.expected_bucket_incarnation_id`, but `apply_bucket_generation_guard`
deliberately leaves it unset when no guard extension is present — only the
S3 access layer installs one. Every direct caller therefore got
`InternalError: ... bucket generation guard is missing`. Resolve the
current generation instead, the way the copy path already does. The fence
is unaffected: RestoreObject still re-reads the incarnation from disk and
compares before admitting the restore, and the multipart listing is
filtered by the value it resolves.
2. `restore_expiry_snapshot_matches` (new on this branch) rejected every
restored-copy expiry whose `restore_expires` had not already elapsed.
Whether the restored copy is due to expire is the ILM evaluator's
decision, made when it emitted DeleteRestoredAction; re-deriving it in
the set layer only adds a way for a legitimate action to be rejected.
The stale-event risk it appears to guard is already covered by the
surrounding snapshot match — a re-restore rewrites `restore_expires`,
so a replayed event fails the equality check. Drop the clause; the
fifteen identity clauses are unchanged.
Fixed:
rustfs app::lifecycle_transition_api_test::
restore_object_usecase_accepts_exactly_one_of_two_concurrent_restores
restore_object_usecase_completes_suspended_null_version_in_place
restore_object_usecase_reports_ongoing_conflict
rustfs-scanner::lifecycle_integration_test serial_tests::
test_restore_chain_local_read_expiry_keeps_remote_and_allows_re_restore
Verification: the CI ILM lane filter now runs 53/53 green locally.
* chore: address review follow-ups on this branch
Four items from the adversarial review that were still open.
- Restore the assertion `test_bucket_replication_replayed_delete_marker_
preserves_source_mtime_without_source_restart` is named for. The branch
had replaced the backlog#867 mtime check with `assert_replication_
converged`, which any successful replication satisfies, and deleted the
two helpers it needed — so the regression the test exists to catch would
now pass. This matters here specifically because the branch changes the
flag feeding `replication_delete_remove_options` and routes replay
through a new file and ordering.
- Drop `read_config_no_lock_preserve_empty`: zero production callers (the
one real consumer calls the `_with_metadata` variant directly). Its test
stanza now exercises that variant, so the coverage moves to live code
rather than being deleted.
- Revert the `bytesize` bump. It is a no-op: `Cargo.lock` already pinned
2.7.0 before this branch and is untouched, so the caret range already
resolved there. Nothing in the diff uses the crate.
- Split the AGENTS.md "Adversarial Validation" policy change out of this
branch. The edit is defensible on its own, but it relaxes the review gate
that this branch has to pass, so it should land as its own PR reviewed on
its own merits rather than bundled with the change that benefits from it.
The reverted hunks are unchanged and ready to re-apply.
Not changed, deliberately: the missing-sidecar path still fails closed.
`missing_bucket_incarnation_sidecar_for_new_metadata_fails_closed` pins
that on purpose, and serving a non-authoritative Object Lock state would
be the wrong trade. The residual concern stands and is recorded in review
— a crash between the two writes in `persist_new_and_set` leaves the
bucket unloadable until DeleteBucket+CreateBucket, and the repair branches
in `migrate_legacy_metadata` and `make_bucket` are unreachable dead code
for that case. Resolving it needs the read path and the (transaction-lock
holding) repair path to be separated, which is more than a follow-up edit.
* test(ci): serialize the new bucket-incarnation tests
The five tests this branch adds around the incarnation / lifecycle fence
drive `init_bucket_metadata_sys` and `bucket_metadata_sys_of` — process-global
OnceLock state that `serial_test`'s `#[serial]` cannot protect across
nextest's process boundary — and they delete+recreate buckets, the shape that
raced into InsufficientWriteQuorum in backlog#937.
Add them to the `ecstore-serial-flaky` group in both the default and ci
profiles (nextest evaluates a named profile's own overrides list, so the
ci mirror is required). Preventive serialization only, no retries.
Not a full fix for the review comment: `bucket_delete_waits_for_config_
mutation_fence` still proves liveness with a fixed 200ms sleep plus
`assert!(!delete.is_finished())`. Turning that into readiness polling needs
a production-side signal to wait on — asserting "still blocked" is inherently
a negative. Serializing the group removes the parallel-load pressure that
makes the window fragile; the sleep itself is left for a follow-up.
* test(ecstore): pin that a drained bucket is actually deletable
`DeleteBucket`'s emptiness check is `has_xlmeta_files`, a raw scan of the
bucket directory on local disks — not an S3-level listing. So "the client
drained the bucket" and "the bucket is deletable" are two different
contracts, and only the first one was covered.
That gap is what the `S3 Implemented Tests` lane is failing on: 219 cases,
all `BucketNotEmpty` on `nuke_prefixed_buckets`, with every test body
passing. The first one is `test_versioning_obj_suspend_versions`, reported
by pytest as PASSED followed by ERROR at teardown.
Add the missing assertion for the unversioned path: PUT, client DELETE,
then assert no `xl.meta` survives and `DeleteBucket` succeeds. It passes —
which is itself a result: the plain delete path leaves no residue, so the
s3-tests failure is not there.
The versioning-suspended path is the remaining suspect (the client DELETE
leaves a null delete marker, and draining means purging it by
`versionId=null`). It is not covered here: `BucketVersioningSys` resolves
through the ambient `get_bucket_metadata_sys()` OnceLock, which this unit
env cannot set, so the bucket never actually reports as suspended. That
repro belongs at the e2e layer where a real server owns the versioning
state.
* fix(ecstore): let an explicit null-version delete purge its delete marker
Root cause of the `S3 Implemented Tests` lane: 219 cases, all
`BucketNotEmpty` on `nuke_prefixed_buckets`, every test body passing.
On a versioning-suspended bucket a client DELETE leaves a null delete
marker — correct S3 semantics, and an `xl.meta` on disk. Draining the
bucket therefore means purging that marker as `?versionId=null`, which is
what `nuke_bucket` does before `DeleteBucket`. That purge was rejected:
explicit null-version purge of the null delete marker must succeed,
got [Some(MethodNotAllowed)]
so the marker survived, and `DeleteBucket`'s emptiness check — a raw
`has_xlmeta_files` scan of the bucket directory, not an S3 listing — kept
reporting the bucket as non-empty.
The two sides of the version comparison in the batch delete loop are in
different namespaces. `goi.version_id` is the client-facing identity, where
`from_file_info` synthesizes `Some(Uuid::nil())` for a null version on a
versioned *or versioning-suspended* bucket. `version_id` is the storage
identity, where `delete_file_info_version_id` maps an explicit
`?versionId=null` to `None`. Comparing them raw makes the purge look like a
version mismatch, so `explicit_delete_marker` is false and the
`MethodNotAllowed` from the lookup is recorded as a delete failure.
This only became reachable on this branch: previously `check_opts` did not
carry `dobj.version_id`, so `set_disk_delete_creates_delete_marker` was
true, `object_lock_check_required` was false, and the lookup that produces
`MethodNotAllowed` never ran. Adding the version id to `check_opts` lit up
a comparison that was already wrong.
Normalize both sides through `delete_file_info_version_id`.
The regression test injects a real Suspended bucket-config snapshot — the
delete path reads versioned/suspended from that snapshot, not from `opts`,
so without it `from_file_info` never synthesizes the null version id and
the branch is not reached. Mutation-checked: restoring the raw comparison
fails the test with the exact `MethodNotAllowed` above.
* fix(app): drop the now-needless struct update
Reverting `crates/replication` to main removed the extra `MrfReplicateEntry`
fields, so this literal specifies every field again and `..Default::default()`
trips `clippy::needless_update` under `-D warnings`.
Caught by CI, not locally: I had run `cargo check --workspace --all-targets`,
which does not see clippy-only lints. Ran `cargo clippy --workspace
--all-targets -- -D warnings` here — clean.
* test(e2e): assert the fresh-volume classification
four_node_empty_legacy_volumes_start_as_fresh only started the cluster and
listed buckets — no assertion, so any classification path that still permits
startup left it green without proving the pre-created empty `.minio.sys`
directories were treated as fresh volumes.
Pin what that classification actually leaves behind: no buckets adopted into
the namespace, `.rustfs.sys/format.json` written on every drive, and the empty
legacy directory left untouched rather than migrated into.
* fix(bucket): apply the requested Object Lock to existing buckets
Site replication replays make-with-versioning against the destination,
carrying the source's `lockEnabled`. When the destination bucket already
exists it takes `force_create`, and the whole option-application block was
gated on `confirmed_missing` — so the call returned success while the replica
stayed unlocked. Replicated versions could then be deleted without the
retention the source enforces.
Object Lock enable is one-way, so applying it to an existing bucket is safe:
move it out of the creation-only gate, keeping `created` and versioning-only
options creation-scoped as before.
An existing authoritative bucket takes the `cache_bucket_metadata_in` branch,
which only caches, so the enable would have been dropped on restart. Persist
instead when the enable actually changed something.
Mutation-checked: restoring the creation-only gate fails the new
`force_create_enables_object_lock_on_an_existing_bucket` with "Object Lock
must be enabled on the existing bucket".
cargo nextest run -p rustfs-ecstore --lib: 3633 passed.
* fix(ecstore): box the generation-checked config mutation paths too
The earlier stack fix boxed `update` and `delete`, but an authorized
bucket-config mutation carrying an incarnation takes `update_if_incarnation`
/ `delete_if_incarnation` instead — which were still inlining the whole
resolve/load/save chain into an already-deep request future. Same overflow,
sibling path.
* fix(restore): keep the nil-version normalization the strip removed
Reverting the replication subsystem to main took `set_disk/replication.rs`
with it, but one line in that file was this branch's own fix rather than
replication work:
- self.version_id.filter(|v| !v.is_nil()) == fi.version_id.filter(|v| !v.is_nil())
+ self.version_id == fi.version_id
For a versioning-suspended object the expected version is `Some(Uuid::nil())`
while the read-back `FileInfo` carries `None`, so the raw compare reports
every suspended restore as "restored object changed before restore metadata
finalization" and the copy-back never commits. Same nil-vs-None mismatch as
the null delete-marker purge fixed earlier on this branch.
Caught by `Test and Lint (rio-v2)`, not by my local runs: the test lives in
`transition_commit_failure_tests`, gated behind `feature = "test-util"`, so
the 3633-test suite I had been running never included it. Re-ran with
`--features rio-v2,test-util`: 3722 passed.
A same-name CopyObject marks the operation `metadata_only`, which lets the
store layer rewrite `xl.meta` in place and leave the data blocks untouched.
The handler independently strips the source encryption metadata and calls
`sse_encryption`, which mints a *fresh* DEK. On an unversioned bucket both
happen at once, so the object ends up with a new DEK sitting beside ciphertext
sealed under the old one, and can never be decrypted again.
The mirror case is silent: an encrypted source copied without any destination
SSE keeps its ciphertext while losing the key metadata, so GET returns raw
ciphertext as if it were plaintext, with HTTP 200 and no error anywhere.
Keep `metadata_only` off whenever either side of the copy is encrypted, so the
store layer performs a full read/write rewrite through `put_object`. This is
the same resolution the versioned historical-restore path already uses for
this risk (issue #4238), and it matches MinIO's
`isSourceEncrypted || isTargetEncrypted -> metadataOnly = false` guard in
CopyObjectHandler.
The target half of the predicate deliberately tests `effective_sse` rather
than the request headers MinIO inspects: `effective_sse` also resolves the
bucket default-encryption rule, and `sse_encryption` mints a DEK from that
resolved value. A header-only check would miss a same-key copy performed under
a bucket default rule. The source half reuses `ObjectInfo::is_encrypted` so a
future encryption flavour is covered here as soon as it is recognised there.
Versioned buckets were already safe: that path falls through to `put_object`
regardless of `metadata_only`. RestoreObject also sets `metadata_only` but
only appends restore keys and never re-derives a DEK, so it is unaffected.
fix(admin): retire the query-string form of immediate KMS key deletion
Immediate deletion destroys master key material outright, and every
object encrypted under that key becomes permanently unreadable. The
delete endpoint accepted that request as a query parameter, which is the
form most easily issued by accident and the one that made the waiting
window bypassable.
The query string can now only schedule a deletion: `force_immediate`
with any value other than `false`, or a `confirm_key_id` parameter, is
refused with 400 rather than downgraded to a scheduled deletion, so a
caller cannot read the answer as "destroyed". The JSON body form is
unchanged and remains the single way to reach the service gate that
enforces the server opt-in and the echoed confirmation.
Classify the route accordingly: `RouteRiskLevel` gains `Critical` for
routes whose worst case is permanent loss of user data, and the KMS key
deletion route is the only member, pinned in both directions by a matrix
test. Endpoint-level coverage for the 7-30 day window bound is added for
every configured backend.
Refs rustfs/backlog#1585 (part of rustfs/backlog#1562)
* feat(policy): add built-in KMS role policies
KMSKeyAdministrator, KMSKeyUser and KMSAuditor ship as canned identity
policies so operators can express KMS role separation without hand-writing
the resource grammar. They grant only kms actions, so they compose with an
existing data-plane policy, and none of them confers kms:Configure,
kms:ServiceControl, kms:ClearCache, kms:Backup or kms:Restore.
* docs(kms): document per-key KMS authorization and the role templates
* test(kms): add an end-to-end negative authorization matrix
Covers the admin and SSE-KMS planes for a wrong identity, a wrong key, a
wrong action and an explicit Deny, each preceded by a positive control so a
denial cannot be an unpropagated policy. SSE-S3 and unencrypted objects are
asserted to stay exempt.
* test(replication): pin the SSE-KMS contract with per-key authorization on
The replication worker carries no request identity, so it must stay exempt
from SSE-KMS key authorization. Running the existing contract with the
switch enabled makes a regression in that exemption visible here.
test(replication): distinguish backlog from failures
Extend the replication backlog e2e to assert that historical failed counters can remain non-zero after recovery while current backlog and MRF pending gauges settle to zero.
Co-authored-by: heihutu <heihutu@gmail.com>
Co-authored-by: zhi22915 <qiuzgang@gmail.com>
Zhengchao An