- lastSnapshotIndex/Term bound the compacted prefix; lastLogIndex/Term
and AppendEntries prevLog checks respect the snapshot base
- compactLog drops entries only through min(matchIndex, lastApplied) on
the leader so lagging peers can still catch up via AppendEntries
- Persist snapshot fields in raft_state.bin; BARADB_RAFT_LOG_MAX_ENTRIES
- Fix commit-index scan to use findLogEntryByIndex (works after compact)
- Fix runTcpServer to run the already-wired Server (raftNode was assigned
on a different instance that never accepted clients).
- Cap raft peer connect at 200ms and fan out heartbeats in parallel so a
dead peer cannot stall AppendEntries to the live majority.
- Add raft_writes_e2e_test: 3-node write replication, follower rejection,
and post-failover writes; wire into nimble test + gitignore.
Replace bare except: with CatchableError across storage, query, Raft,
backup, and protocol code so Defects are not swallowed. Break uncollectable
ARC cycles in server shard/gossip callbacks via Server-owned refs and
cursor locals. Align package license with LICENSE (BSD-3-Clause), sync
README version, and point test_all at the canonical clients/nim baradb
client (parseConnectionString + aliases).
Поправени проблеми:
- LSM-Tree: WAL write вече е извън db.lock (отделен walLock) → по-добра concurrency
- MVCC: добавен compactVersions() който се изпълнява на всеки 100 commits
Премахва стари overwritten версии, които не са видими за active транзакции
- DistTxn: commit() вече НЕ rollback-ва commit-нали participants
Ако някой participant е commit-нал, транзакцията се маркира като committed
- Raft: добавен disk persistence за currentTerm, votedFor, log
saveState() при всяка промяна; loadState() при стартиране
292 теста, 0 failure-а.
Поправени проблеми:
- MVCC: aborted транзакции вече не стават видими (добавено abortedTxns множество)
- LSM-Tree: поправена загуба на данни при immutable memtable overwrite
- LSM-Tree: поправена SSTable search order (сортиране по id вместо minKey)
- WAL: sync()/close() вече извикват posix.fsync()
- Auth: simpleHash (djb2) заменен с HMAC-SHA256
- Recovery: summary() вече не мутира базата данни
- Raft: поправена majority calculation за четен брой нодове
- Query: EXISTS subqueries вече изпълняват подзаявката
- Nimble: поправен build (-d:ssl) и bench task
Добавен BUG_AUDIT.md с пълен доклад и план за подобрения.
292 теста, 0 failure-а.
- applyCommand callback: committed entries applied to state machine
- lastApplied incremented on commit via applyCommitted()
- RaftNetwork.run() started from main() when raftEnabled=true
- asyncCheck replaced with try/await in processMessage
- bindAddr without hardcoded 127.0.0.1
- raft config: raftEnabled/Port/Peers/NodeId + env vars
- 283 tests, 0 failures
Critical fixes:
- B-Tree splitChild: fixed out-of-bounds on child.children.len (mid+1..len → mid+1..<len)
- Wire protocol: all deserializeValue cases now properly assign to result
- Wire protocol: fkBool/fkInt8 now increment pos after reading
- MVCC: write-write conflict now detected for completed transactions
- MVCC: commit only marks visible versions as deleted (not concurrent uncommitted)
- Lexer: buffer overrun on backslash escape at end of input — added bounds check
- Bulgarian/Russian stemmers: fixed UTF-8 byte offsets for Cyrillic suffixes (2 bytes per char)
High fixes:
- WebSocket: added missing std/tables import
- Raft: added randomize() call for election timeouts
- MemTable.get: binary search O(log n) instead of linear scan O(n)
Medium fixes:
- Zerocopy: string length now written as 4-byte int32 (was single byte)
- Raft appendEntries: guard against nextIdx underflow
- Columnar: null tracking with nulls seq on ColumnPtr
- Removed dead code in lexer readIdent (redundant true/false checks)
- Updated Bulgarian stemming test to match corrected byte offsets
All 214 tests pass across 48 suites with 0 failures.
Crash Recovery:
- WAL file scanning with magic/version/entry parsing
- REDO/UNDO analysis — identify committed vs uncommitted txns
- Summary reporting with entry/txn/apply status
Raft Election Timer:
- ElectionTimer with configurable timeout and tick/check/reset
- Automatic election start on follower timeout
- Candidate timeout restart on failed elections
CLI Autocomplete:
- Full autocomplete engine for commands and SQL keywords
- Suggest function for single/multi completions
- 60+ keywords (SELECT, FROM, WHERE, JOIN, GROUP BY, etc.)
ROADMAP.md:
- All completed items properly marked
- Updated status table — 9 out of 12 phases at 90%+
14 new tests (246 total, all passing)
dimgigov