Mirror/seaweedfs - seaweedfs - Gitea: Git with a cup of tea

Author	SHA1	Message	Date
chrislu	71f8a6e189	fix: handle partial results correctly in LookupVolumeIdsWithFallback callers Two callers were discarding partial results by checking err before processing the result map. While these are currently single-volume lookups (so partial results aren't possible), the code was fragile and would break if we ever batched multiple volumes together. Changes: - Check result map FIRST, then conditionally check error - If volume is found in result, use it (ignore errors about other volumes) - If volume is NOT found and err != nil, include error context with %w - Add defensive comments explaining the pattern for future maintainers This makes the code: 1. Correct for future batched lookups 2. More informative (preserves underlying error details) 3. Consistent with filer_grpc_server.go which already handles this correctly Example: If looking up ["1", "2", "999"] and only 999 fails, callers looking for volumes 1 or 2 will succeed instead of failing unnecessarily.	2 months ago
chrislu	f799596419	improve: address code review findings on error handling and documentation 1. Master provider now preserves per-volume errors - Surface detailed errors from master (e.g., misconfiguration, deletion) - Return partial results with aggregated errors using errors.Join - Callers can now distinguish specific volume failures from general errors - Addresses issue of losing vidLoc.Error details 2. Document GetMaster initialization contract - Add comprehensive documentation explaining blocking behavior - Clarify that KeepConnectedToMaster must be started first - Provide typical initialization pattern example - Prevent confusing timeouts during warm-up 3. Document partial results API contract - LookupVolumeIdsWithFallback explicitly documents partial results - Clear examples of how to handle result + error combinations - Helps prevent callers from discarding valid partial results 4. Add safeguards to legacy filer.LookupFn - Add deprecation warning with migration guidance - Implement simple 10,000 entry cache limit - Log warning when limit reached - Recommend wdclient.FilerClient for new code - Prevents unbounded memory growth in long-running processes These changes improve API clarity and operational safety while maintaining backward compatibility.	2 months ago
chrislu	c81bb716b5	fix: prevent vidMap swap race condition in LookupFileIdWithFallback - Hold vidMapLock.RLock() during entire vm.LookupFileId() call - Prevents resetVidMap() from swapping vidMap mid-operation - Ensures atomic access to the current vidMap instance - Added documentation warnings to getStableVidMap() about swap risks - Enhanced withCurrentVidMap() documentation for clarity This fixes a subtle race condition where: 1. Thread A: acquires lock, gets vm pointer, releases lock 2. Thread B: calls resetVidMap(), swaps vc.vidMap 3. Thread A: calls vm.LookupFileId() on old/stale vidMap While the old vidMap remains valid (in cache chain), holding the lock ensures we consistently use the current vidMap for the entire operation.	2 months ago
chrislu	5a1eed0835	refactor: mount uses FilerClient for efficient volume location caching - Add configurable vidMap cache size (default: 5 historical snapshots) - Add FilerClientOption struct for clean configuration * GrpcTimeout: default 5 seconds (prevents hanging requests) * UrlPreference: PreferUrl or PreferPublicUrl * CacheSize: number of historical vidMap snapshots (for volume moves) - NewFilerClient uses option struct for better API extensibility - Improved error handling in filerVolumeProvider.LookupVolumeIds: * Distinguish genuine 'not found' from communication failures * Log volumes missing from filer response * Return proper error context with volume count * Document that filer Locations lacks Error field (unlike master) - FilerClient.GetLookupFileIdFunction() handles URL preference automatically - Mount (WFS) creates FilerClient with appropriate options - Benefits for weed mount: * Singleflight: Deduplicates concurrent volume lookups * Cache history: Old volume locations available briefly when volumes move * Configurable cache depth: Tune for different deployment environments * Battle-tested vidMap cache with cache chain * Better concurrency handling with timeout protection * Improved error visibility and debugging - Old filer.LookupFn() kept for backward compatibility - Performance improvement for mount operations with high concurrency	2 months ago
chrislu	c0342f23b7	adds FilerClient to use cached volume id	2 months ago