v0.30.0

0.30.0 (2025-09-12)

Features

• storage: set logger for pebble storage engine (bc99a0b)
• storage: set Pebble format to FormatVirtualSSTables (0e6bb54)

Bug Fixes

• storagenode: fix deadlock in Serve method (d8548c5)

v0.29.0

0.29.0 (2025-07-27)

Features

• varlog: add observer to subscribe API for metrics (7b59d83)

Performance Improvements

• client,subscribe: reduce heap allocations in the dispatcher loop (a6384b1)

Reverts

• storage: revert Pebble to v1 and its SST format (ec7f76a)

v0.28.2

0.28.2 (2025-06-30)

Bug Fixes

• storagenode: minimize mutex scope and improve shutdown clarity (735037e)
• storagenode: stop syncRunner when log stream executor closes (e141053)

v0.28.1

0.28.1 (2025-06-22)

Bug Fixes

• storagenode: fix data race in ReplicationTask release (1c0ed6c)

v0.28.0

0.28.0 (2025-06-20)

Features

• stats: add OpenTelemetry histogram wrappers with caching (b5388f4)
• storage,telemetry: add OpenTelemetry batch commit duration metrics for store (d375e8a)
• storage: add enable_telemetry option to control metrics recording (cd46cf4)
• storage: add MetricRecorder interface and batch commit stats recording (3844349)
• storage: add wal_bytes_per_sync and sst_bytes_per_sync to store settings (29de0ce)
• storage: always separate data and commit stores (7fb6380)
• storagenode: enable batching of writes in primary/backup writer (13204a9)
• storagenode: migrate metrics to OpenTelemetry histogram wrappers (979eda6)
• varlogsn: add unified store config flags to supersede legacy per-option flags (03ac580)

Bug Fixes

• metarepos: restore AddPeerRequest backward compatibility with legacy fields (29bde78)
• storagenode: use correct flags for commit store WAL and sync options (10c9441)

Performance Improvements

• storagenode: move write batch logic from sequencer to writer (8f013ee)
• storagenode: optimize backup replication with ReplicationTask (95052b7)
• storagenode: process all pending tasks per iteration in replicator loop (eef7f62)

v0.27.0

0.27.0 (2025-06-15)

Features

• rpc: add gRPC keepalive parameters for client and server (0bc4a69)
• storage: use latest Pebble SST format (FormatVirtualSSTables) (e8386fb)

Bug Fixes

• metarepos,reportcommitter: close report stream on send error (4614618)
• storagenode: prevent negative WaitGroup counter panic in append logic (095c626)

Performance Improvements

• logstream: avoid heap escape of commitResult in Executor.Commit (e8ff7f6)
• metarepos: remove unnecessary creation of StorageNodeUncommitReport (ea80298)
• storagenode: replace inline error with predefined constant (1920540)
• storagenode: reuse buffer for ReplicateRequest unmarshaling (c555720)
• storagenode: reuse CommitResults to reduce allocations (58bc8a9)

v0.26.0

0.26.0 (2025-04-15)

Features

• client: enhance PeekLogStream with status return value (bf497dc)
• logstream: deprecate error field in AppendResult for atomic append (e072e4d)
• logstream: introduce commit wait task for append batch (30645f0)
• logstream: remove deprecated LLSN field from ReplicateRequest (c2663cc)
• metarepos: add GetReports, GetCommitResult rpc (b88a6c1)
• metarepos: add metric for count of commit result history (029a36e)
• storage: add separate sync/wal options for data and commit DBs (0ee44c3)
• storagenode: add empty payload validation (feccb64)
• storagenode: remove package internal/batchlet (42003ae)
• support zap logger's development mode (00e4836)
• telemetry: Support both new and deprecated OpenTelemetry runtime metrics (5b6f3e3)

Bug Fixes

• admin: handle heartbeat timeout (36ebaa8)
• admin: seal replicas in parallell (aaf494d)
• metarepos: reportCollector handles invalid report propertly (f5f7273)
• storagenode: handle unexpected LLSN errors (f39c1b8)
• storagenode: handle unsealing of already appendable log streams (6836037)
• storagenode: prevent panic during concurrent commit & seal ops (20e8d23)
• storagenode: prevent panic during replica sealing in synchronization (98f379a)
• subscriber: fix refresh subscriber (9cf88cb)

Performance Improvements

• logstream: remove llsnList from replicateTask (2ce0a9d)
• reportCollector: reduce calling sampleTracer.report (0faea11)

v0.25.0

0.25.0 (2025-02-21)

Features

• logstream: use beginLLSN in Replicate method (f2edf66)

v0.24.0

0.24.0 (2025-02-03)

Features

• testutil: add unit tests and remove unused functions (6bb7f1d)

Bug Fixes

• prevent panic on partial append failures (b6fb11e)
• unregistering topic translates to multiple redundant Raft proposals (8ddf8f5)

Performance Improvements

• grpc: switch to gRPC CodecV2 for improved performance (b0c7406)

v0.23.0

0.23.0 (2024-10-23)

Features

• remove gRPC buffer pool flags (282bcaa)

Bug Fixes

• logger: no overriding custom zap logger options (ed416fe)
• metarepos: check the NodeID for adding and removing peers (43003d4)