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9b6b564235
add-admin-and-worker-to-helm-charts
add-ec-vacuum
add_fasthttp_client
add_remote_storage
adding-message-queue-integration-tests
also-delete-parent-directory-if-empty
avoid_releasing_temp_file_on_write
changing-to-zap
collect-public-metrics
create-table-snapshot-api-design
data_query_pushdown
dependabot/maven/other/java/client/com.google.protobuf-protobuf-java-3.25.5
dependabot/maven/other/java/examples/org.apache.hadoop-hadoop-common-3.4.0
detect-and-plan-ec-tasks
do-not-retry-if-error-is-NotFound
enhance-erasure-coding
fasthttp
filer1_maintenance_branch
fix-GetObjectLockConfigurationHandler
fix-versioning-listing-only
ftp
gh-pages
improve-fuse-mount
improve-fuse-mount2
java-client-replication-configuration
logrus
master
message_send
mount2
mq-subscribe
mq2
original_weed_mount
pr-7412
random_access_file
refactor-needle-read-operations
refactor-volume-write
remote_overlay
revert-5134-patch-1
revert-5819-patch-1
revert-6434-bugfix-missing-s3-audit
s3-select
sub
tcp_read
test-reverting-lock-table
test_udp
testing
testing-sdx-generation
tikv
track-mount-e2e
volume_buffered_writes
worker-execute-ec-tasks
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dev
helm-3.65.1
v0.69
v0.70beta
v3.33
${ noResults }
seaweedfs/seaweedfs-rdma-sidecar/cmd/demo-server
Dmitriy Pavlov
9b6b564235
* Filer: Add retry mechanism for failed file deletions Implement a retry queue with exponential backoff for handling transient deletion failures, particularly when volumes are temporarily read-only. Key features: - Automatic retry for retryable errors (read-only volumes, network issues) - Exponential backoff: 5min → 10min → 20min → ... (max 6 hours) - Maximum 10 retry attempts per file before giving up - Separate goroutine processing retry queue every minute - Enhanced logging with retry/permanent error classification This addresses the issue where file deletions fail when volumes are temporarily read-only (tiered volumes, maintenance, etc.) and these deletions were previously lost. 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com> * Update weed/filer/filer_deletion.go Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com> * Filer: Add retry mechanism for failed file deletions Implement a retry queue with exponential backoff for handling transient deletion failures, particularly when volumes are temporarily read-only. Key features: - Automatic retry for retryable errors (read-only volumes, network issues) - Exponential backoff: 5min → 10min → 20min → ... (max 6 hours) - Maximum 10 retry attempts per file before giving up - Separate goroutine processing retry queue every minute - Map-based retry queue for O(1) lookups and deletions - Enhanced logging with retry/permanent error classification - Consistent error detail limiting (max 10 total errors logged) - Graceful shutdown support with quit channel for both processors This addresses the issue where file deletions fail when volumes are temporarily read-only (tiered volumes, maintenance, etc.) and these deletions were previously lost. 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com> * Filer: Replace magic numbers with named constants in retry processor Replace hardcoded values with package-level constants for better maintainability: - DeletionRetryPollInterval (1 minute): interval for checking retry queue - DeletionRetryBatchSize (1000): max items to process per iteration This improves code readability and makes configuration changes easier. * Filer: Optimize retry queue with min-heap data structure Replace map-based retry queue with a min-heap for better scalability and deterministic ordering. Performance improvements: - GetReadyItems: O(N) → O(K log N) where K is items retrieved - AddOrUpdate: O(1) → O(log N) (acceptable trade-off) - Early exit when checking ready items (heap top is earliest) - No full iteration over all items while holding lock Benefits: - Deterministic processing order (earliest NextRetryAt first) - Better scalability for large retry queues (thousands of items) - Reduced lock contention duration - Memory efficient (no separate slice reconstruction) Implementation: - Min-heap ordered by NextRetryAt using container/heap - Dual index: heap for ordering + map for O(1) FileId lookups - heap.Fix() used when updating existing items - Comprehensive complexity documentation in comments This addresses the performance bottleneck identified in GetReadyItems where iterating over the entire map with a write lock could block other goroutines in high-failure scenarios. * Filer: Modernize heap interface and improve error handling docs 1. Replace interface{} with any in heap methods - Addresses modern Go style (Go 1.18+) - Improves code readability 2. Enhance isRetryableError documentation - Acknowledge string matching brittleness - Add comprehensive TODO for future improvements: * Use HTTP status codes (503, 429, etc.) * Implement structured error types with errors.Is/As * Extract gRPC status codes * Add error wrapping for better context - Document each error pattern with context - Add defensive check for empty error strings Current implementation remains pragmatic for initial release while documenting a clear path for future robustness improvements. String matching is acceptable for now but should be replaced with structured error checking when refactoring the deletion pipeline. * Filer: Refactor deletion processors for better readability Extract large callback functions into dedicated private methods to improve code organization and maintainability. Changes: 1. Extract processDeletionBatch method - Handles deletion of a batch of file IDs - Classifies errors (success, not found, retryable, permanent) - Manages retry queue additions - Consolidates logging logic 2. Extract processRetryBatch method - Handles retry attempts for previously failed deletions - Processes retry results and updates queue - Symmetric to processDeletionBatch for consistency Benefits: - Main loop functions (loopProcessingDeletion, loopProcessingDeletionRetry) are now concise and focused on orchestration - Business logic is separated into testable methods - Reduced nesting depth improves readability - Easier to understand control flow at a glance - Better separation of concerns The refactored methods follow the single responsibility principle, making the codebase more maintainable and easier to extend. * Update weed/filer/filer_deletion.go Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com> * Filer: Fix critical retry count bug and add comprehensive error patterns Critical bug fixes from PR review: 1. Fix RetryCount reset bug (CRITICAL) - Problem: When items are re-queued via AddOrUpdate, RetryCount resets to 1, breaking exponential backoff - Solution: Add RequeueForRetry() method that preserves retry state - Impact: Ensures proper exponential backoff progression 2. Add overflow protection in backoff calculation - Check shift amount > 63 to prevent bit-shift overflow - Additional safety: check if delay <= 0 or > MaxRetryDelay - Protects against arithmetic overflow in extreme cases 3. Expand retryable error patterns - Added: timeout, deadline exceeded, context canceled - Added: lookup error/failed (volume discovery issues) - Added: connection refused, broken pipe (network errors) - Added: too many requests, service unavailable (backpressure) - Added: temporarily unavailable, try again (transient errors) - Added: i/o timeout (network timeouts) Benefits: - Retry mechanism now works correctly across restarts - More robust against edge cases and overflow - Better coverage of transient failure scenarios - Improved resilience in high-failure environments Addresses feedback from CodeRabbit and Gemini Code Assist in PR #7402. * Filer: Add persistence docs and comprehensive unit tests Documentation improvements: 1. Document in-memory queue limitation - Acknowledge that retry queue is volatile (lost on restart) - Document trade-offs and future persistence options - Provide clear path for production hardening - Note eventual consistency through main deletion queue Unit test coverage: 1. TestDeletionRetryQueue_AddAndRetrieve - Basic add/retrieve operations - Verify items not ready before delay elapsed 2. TestDeletionRetryQueue_ExponentialBackoff - Verify exponential backoff progression (5m→10m→20m→40m→80m) - Validate delay calculations with timing tolerance 3. TestDeletionRetryQueue_OverflowProtection - Test high retry counts (60+) that could cause overflow - Verify capping at MaxRetryDelay 4. TestDeletionRetryQueue_MaxAttemptsReached - Verify items discarded after MaxRetryAttempts - Confirm proper queue cleanup 5. TestIsRetryableError - Comprehensive error pattern coverage - Test all retryable error types (timeout, connection, lookup, etc.) - Verify non-retryable errors correctly identified 6. TestDeletionRetryQueue_HeapOrdering - Verify min-heap property maintained - Test items processed in NextRetryAt order - Validate heap.Init() integration All tests passing. Addresses PR feedback on testing requirements. * Filer: Add code quality improvements for deletion retry Address PR feedback with minor optimizations: - Add MaxLoggedErrorDetails constant (replaces magic number 10) - Pre-allocate slices and maps in processRetryBatch for efficiency - Improve log message formatting to use constant These changes improve code maintainability and runtime performance without altering functionality. 🤖 Generated with [Claude Code](https://claude.com/claude-code) Co-Authored-By: Claude <noreply@anthropic.com> * refactoring retrying * use constant * assert * address comment * refactor * address comments * dedup * process retried deletions * address comment * check in-flight items also; dedup code * refactoring * refactoring * simplify * reset heap * more efficient * add DeletionBatchSize as a constant;Permanent > Retryable > Success > Not Found --------- Co-authored-by: Claude <noreply@anthropic.com> Co-authored-by: gemini-code-assist[bot] <176961590+gemini-code-assist[bot]@users.noreply.github.com> Co-authored-by: chrislu <chris.lu@gmail.com> Co-authored-by: Chris Lu <chrislusf@users.noreply.github.com> |
3 weeks ago | |
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| .. | ||
| main.go | Adding RDMA rust sidecar (#7140) | 3 months ago |