* check for nil needle map before compaction sync
When CommitCompact runs concurrently, it sets v.nm = nil under
dataFileAccessLock. CompactByIndex does not hold that lock, so
v.nm.Sync() can hit a nil pointer. Add an early nil check to
return an error instead of crashing.
Fixes#8591
* guard copyDataBasedOnIndexFile size check against nil needle map
The post-compaction size validation at line 538 accesses
v.nm.ContentSize() and v.nm.DeletedSize(). If CommitCompact has
concurrently set v.nm to nil, this causes a SIGSEGV. Skip the
validation when v.nm is nil since the actual data copy uses local
needle maps (oldNm/newNm) and is unaffected.
Fixes#8591
* use atomic.Bool for compaction flags to prevent concurrent vacuum races
The isCompacting and isCommitCompacting flags were plain bools
read and written from multiple goroutines without synchronization.
This allowed concurrent vacuums on the same volume to pass the
guard checks and run simultaneously, leading to the nil pointer
crash. Using atomic.Bool with CompareAndSwap ensures only one
compaction or commit can run per volume at a time.
Fixes#8591
* use go-version-file in CI workflows instead of hardcoded versions
Use go-version-file: 'go.mod' so CI automatically picks up the Go
version from go.mod, avoiding future version drift. Reordered
checkout before setup-go in go.yml and e2e.yml so go.mod is
available. Removed the now-unused GO_VERSION env vars.
* capture v.nm locally in CompactByIndex to close TOCTOU race
A bare nil check on v.nm followed by v.nm.Sync() has a race window
where CommitCompact can set v.nm = nil between the two. Snapshot
the pointer into a local variable so the nil check and Sync operate
on the same reference.
* add dynamic timeouts to plugin worker vacuum gRPC calls
All vacuum gRPC calls used context.Background() with no deadline,
so the plugin scheduler's execution timeout could kill a job while
a large volume compact was still in progress. Use volume-size-scaled
timeouts matching the topology vacuum approach: 3 min/GB for compact,
1 min/GB for check, commit, and cleanup.
Fixes#8591
* Revert "add dynamic timeouts to plugin worker vacuum gRPC calls"
This reverts commit 80951934c3.
* unify compaction lifecycle into single atomic flag
Replace separate isCompacting and isCommitCompacting flags with a
single isCompactionInProgress atomic.Bool. This ensures CompactBy*,
CommitCompact, Close, and Destroy are mutually exclusive — only one
can run at a time per volume.
Key changes:
- All entry points use CompareAndSwap(false, true) to claim exclusive
access. CompactByVolumeData and CompactByIndex now also guard v.nm
and v.DataBackend with local captures.
- Close() waits for the flag outside dataFileAccessLock to avoid
deadlocking with CommitCompact (which holds the flag while waiting
for the lock). It claims the flag before acquiring the lock so no
new compaction can start.
- Destroy() uses CAS instead of a racy Load check, preventing
concurrent compaction from racing with volume teardown.
- unmountVolumeByCollection no longer deletes from the map;
DeleteCollectionFromDiskLocation removes entries only after
successful Destroy, preventing orphaned volumes on failure.
Fixes#8591
Chris Lu
4c88fbfd5e