A replication target that mints its own version ids (Wasabi, AWS S3)
never answers to the source uuid, so every version-addressed mutation
after the initial PUT failed forever: permanent version deletes answered
NoSuchVersion every heal cycle, and tag / retention / legal-hold updates
re-PUT the object, minting one more target version per update
(rustfs/backlog#2340).
Record the id the target assigned as a per-target ledger on the source
version (replication-target-version-<arn>, written through the existing
status writeback) and resolve every later mutation through it: version
deletes DELETE the ledger id, metadata updates go through the
metadata-only Object Lock and tagging APIs. Replicas written before the
ledger existed are located by exact key and ETag, minus the candidates
other generations of the key already claim through their own ledgers; an
ambiguous remainder is refused with a backoff instead of guessed, since a
wrong pick would destroy a live generation. A fresh write never consults
content identity. NoSuchVersion on a version-addressed DELETE counts as
purged.
The fake target gains the Wasabi shape (404 NoSuchVersion on an unknown
id, per-version Object Lock APIs) and the matrix covers the three
mutation classes plus the same-bytes generation case.
* fix(replication): send an integrity header on Object Lock replication PUTs
AWS S3, MinIO and most compatible targets reject a PutObject that carries
x-amz-object-lock-* headers unless it also carries Content-MD5 or an
x-amz-checksum-* header. Since rustfs#6895 the replication client sends
plain signed payloads with no SDK checksum, so every replicated object
with a retention period or legal hold failed against such targets.
TargetClient::put_object now decides per request through the pure
rustfs_replication::object_lock_put_integrity: a plaintext single-part
object whose source ETag is its MD5 gets Content-MD5 derived from the
ETag (no body pass, framing unchanged); a multipart-layout ETag, managed
SSE or SSE-C passthrough falls back to an SDK CRC32; a forwarded source
checksum or an unlocked PUT is left alone.
The outbound target matrix flips its two KnownFailing(rustfs#7082) cells
to Completed and every Completed cell now asserts that a locked
PutObject carried an integrity header.
Fixes rustfs#7082.
* test(e2e): keep the matrix expectation table clippy-clean under -D warnings
The CI lint runs cargo clippy --all-targets -- -D warnings. With every cell
green the single-arm match tripped match_single_binding and the unused
KnownFailing variant tripped dead_code, and the target-client tests tripped
field_reassign_with_default. Drive the expectation table from a
KNOWN_FAILING_CELLS constant (so the variant stays live and adding a red
cell is a one-line entry), build the test options as struct literals, and
refresh the e2e-repl-nightly selection digest for the renamed table test.
test(e2e): add the outbound target matrix and the replication checksum postmortem
Defense work for rustfs#7082, the regression rustfs#6895 introduced while
fixing rustfs#6853: a fix for one target class changed a client default for
every target class and nothing in tree modeled the other classes.
- docs/postmortems: timeline, root cause, why four defense layers missed
it, and the SOP for changing any outbound client default; AGENTS.md and
the adversarial compatibility lens point at it; the two env knobs from
rustfs#6895 are documented in docs/operations.
- fake_s3_target: reject_aws_chunked_uploads, require_checksum_for_object_lock
(Content-MD5 always verified), create_bucket_with_object_lock with a
GetObjectLockConfiguration handler, and a TransportSnapshot on every
journal record.
- replication_target_matrix_test: six object shapes against four target
modes with an explicit expectation table; the two rustfs#7082 cells are
pinned KnownFailing and fail with an XPASS message once the fix lands.
Wired into e2e-repl-nightly, excluded from e2e-full.
唐小鸭