issue: #43897
- Return LastConfirmedMessageID when wal append operation.
- Add resource-key-based locker for broadcast-ack operation to protect
the coord state when executing ddl.
- Resource-key-based locker is held until the broadcast operation is
acked.
- ResourceKey support shared and exclusive lock.
- Add FastAck execute ack right away after the broadcast done to speed
up ddl.
- Ack callback will support broadcast message result now.
- Add tombstone for broadcaster to avoid to repeatedly commit DDL and
ABA issue.
---------
Signed-off-by: chyezh <chyezh@outlook.com>
See also #33062
This PR:
- Add `lock.RWMutex` & `lock.Mutex` alias to switch implementation based
on build flags
- When build flags has `test` in it, use `go-deadlock` to detect
possible deadlocks
- Replace all `sync.RWMutex` & `sync.Mutex` in datacoord pkg
Signed-off-by: Congqi Xia <congqi.xia@zilliz.com>
Signed-off-by: Congqi Xia <congqi.xia@zilliz.com>
