Files
minio/cmd
Feng Ruohang 0720ed477e fix(replication): scope resync dispatch to the target being resynced
The resync worker pool runs for a single target (opts.arn), but the dispatch
loop admitted any object whose ExistingObjResync.mustResync() was true for ANY
target. On a bucket with per-target rules (A and B), a resync of A would pull
in objects that only qualify for B - even with a single active resync, since
qualification is any-target. After the outcome-based classification (previous
change) such a cross-target object leaves A absent from its per-object result
and is counted as an A failure - an object A was never responsible for.

Scope admission to the resync's own target: dispatch an object only if it must
resync for opts.arn specifically (mustResyncTarget), via a small pure helper
objectNeedsResyncForARN. Only opts.arn carries this resync's ResetID, and that
reset is already folded into its per-target decision, so the per-target check
both scopes dispatch and honors the reset. Each target has its own resyncBucket,
so no cross-target object is dropped - it is handled by that target's resync.
The classifier's absent-ARN failure path is now unreachable for normally
dispatched objects and remains only as defense-in-depth (e.g. a config/lock
error before replication is attempted).

Delete-marker/version-purge handling, the null-version exclusion, the
finalization ordering and the outcome-based classification are unchanged.

Adds a table-driven regression for the predicate: with A/B rules and a resync
of A, an object qualifying only for B is not admitted; any-target scoping
admits it and fails the test.

Co-Authored-By: Claude Opus 4.8 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01L7qJqWwy8oFA6aCXWRzXQe
Signed-off-by: Feng Ruohang <rh@vonng.com>
2026-09-06 21:57:52 +08:00
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