seaweedfs

History

Chris Lu 4c88fbfd5e Fix nil pointer crash during concurrent vacuum compaction (#8592 ) * 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		3 days ago
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workflows	Fix nil pointer crash during concurrent vacuum compaction (#8592)	3 days ago
FUNDING.yml	Update FUNDING.yml	4 years ago
ISSUE_TEMPLATE.md	move to https://github.com/seaweedfs/seaweedfs	4 years ago
dependabot.yml	Update dependabot.yml	4 years ago
pull_request_template.md	Modify AI review comments checklist in PR template	1 month ago