dimgigov
ccc54e8f18
fix: stabilization session — auth bypass, raft quorum, wire DoS, query operators
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Security:
- MIGRATE handler now requires auth (unauthenticated arbitrary writes)
- parseHeader rejects oversized messages before allocation (pre-auth DoS)
Correctness:
- raft commit uses strict majority (N div 2 + 1), fixing even-N minority commit
- power (**) and concat (++) no longer lowered to equality
- != is now the exact complement of = for numerically-equal values
- legacy REP payload carries explicit put/delete tag (PK-only rows survive)
- REP receiver maintains secondary indexes via applyReplicatedPut/Delete
- snapshot send runs gzip off the event loop (heartbeat stall mitigation)
Docs: PLAN.md (session 13), BUG_AUDIT_2026-08.md (~28 findings, 23 tracked),
known-limitations.md, CHANGELOG.md.
Verified: baradadb build clean; test_all + bugfix_test pass.
2026-08-02 22:49:30 +03:00
dimgigov
dac92d1741
release: prepare v1.3.0 changelog and version bump
2026-07-31 04:16:11 +03:00
dimgigov
09f462f467
release: v1.2.0 Production GA (single-node)
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- known-limitations, deployment runbook, release checklist
- prod compose requires JWT secret; BARADB_ENV=production fail-closed
- scripts/backup-restore-drill.sh (backup → wipe → restore → verify)
- version bump 1.2.0 (nimble, Dockerfile, health, CHANGELOG dated)
2026-07-30 21:52:21 +03:00
dimgigov
16ec8b5dc4
docs: raft cluster status, plans closed, CHANGELOG/README/monitoring
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- Add raft-cluster-status overview (C3a/C3b/post-C3b shipped on main)
- Mark C3a/C3b design+plans done; refresh operator docs en/bg
- CHANGELOG 1.2.0 Raft section; README cluster example and status line
- monitoring.md health/metrics match real HTTP port+440 and raft series
2026-07-30 21:41:15 +03:00
dimgigov
8db5cfe7e1
feat: harden storage, schema persistence, fair benches, fix wire crash
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Core storage: hash MemTable, WAL group commit, L0 compaction rebuild,
reader-writer lock, and a global StorageGate so HTTP workers and TCP
share the LSM safely under multi-thread access.
Schema: durable CREATE/ALTER/DROP under _schema:tables:* with full LSM
restore on open. Executor types/values/schema split into query/exec/.
Wire protocol: switch default MM to ARC — ORC cycle collector segfaulted
after ~20 async INSERTs. Fair multi-tier benchmarks (SQLite/HTTP/wire/PG)
and honesty docs for mixed-tier comparisons.
2026-07-18 16:55:50 +03:00
dimgigov
ef264d7d69
feat: add unified search engine — HNSW heap-opt, segment index, boolean/phrase/ngram/facet
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New src/barabadb/search/ module with 9 components:
- priority_queue.nim: BoundedHeap for O(log n) search
- hnsw_opt.nim: heap-based searchLayer (2.4x faster, 92-99% recall@10)
- inverted.nim: segment-based index with soft-delete and compaction
- phrase.nim: positional phrase + proximity search
- boolean.nim: recursive descent parser (AND/OR/NOT/ranges/wildcards)
- ngram.nim: trigram index for O(1) fuzzy/prefix/wildcard
- stemmer.nim: Porter2 stemmers (EN/BG/DE/FR/RU)
- facet.nim: faceted search with filter pushdown
- engine.nim: UnifiedSearchEngine combining all search types
Performance (dim=128, efConstruction=200):
N=1K: 0.30ms search, 99.6% recall@10
N=10K: 1.09ms search, 92.6% recall@10
N=50K: 2.26ms search, 75.5% recall@10
Includes search benchmarks (benchmarks/search_bench.nim), updated docs
(en/bg fts.md, en/bg search.md), and crossmodal engine integration.
2026-05-30 13:42:08 +03:00
dimgigov
42043f3946
v1.1.7: deep security & reliability audit — 33 bugs fixed
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Critical (5):
- Reject empty JWT secret when authEnabled (server.nim)
- Fix 2PC marking uncontacted participants as prepared/committed (disttxn.nim)
- Fix Raft commit index calculation for even-sized clusters (raft.nim)
- Fix REP/DISTTXN protocol auth bypass (server.nim)
- Fix HTTP backup/restore path traversal (httpserver.nim)
High (11):
- Fix WAL write race with flush (lsm.nim)
- Fix MVCC savepoint/rollback deep-copy writeSet (mvcc.nim)
- Fix table mutation during deadlock iteration (mvcc.nim)
- Fix LIMIT 0 returning all rows (executor.nim)
- Fix COUNT(col) counting NULL values — 3 locations (executor.nim)
- Fix EXISTS subquery lowering missing subqueryPlan (executor.nim)
- Fix Raft appendEntries/applyCommitted array vs logical index (raft.nim)
- Fix timing attacks on constantTimeCompare and SCRAM (auth.nim, scram.nim)
- Fix B-tree leaf merge phantom separator key (btree.nim)
- Fix SSL verifyPeer not applied to newContext (ssl.nim)
- Fix sharding connectWithTimeout missing SO_ERROR check (sharding.nim)
- Fix sync replication returning success on partial ack (replication.nim)
- Fix WebSocket JWT expiration not validated (websocket.nim)
Medium (13):
- Fix writeSSTable partial file → tmp + atomic rename (lsm.nim)
- Fix multi-CTE table loss (executor.nim)
- Fix nl_to_sql DML restricted to superuser (executor.nim)
- Fix unbounded plan cache — max 10000 (adaptive.nim)
- Fix migration lock crash persistence — timestamp + stale detection (executor.nim)
- Fix admin panel auth (httpserver.nim)
- Fix MVCC unbounded txn tracking — prune in compactVersions (mvcc.nim)
- Fix connection pool maxLifetime check (pool.nim)
- Fix JWT JSON parser backslash escapes (auth.nim)
- Fix substr(s, start) returning single char (udf.nim)
- Fix loadSSTable minimum file-size check (lsm.nim)
- Fix compaction mmap leak (compaction.nim)
- Fix JSON injection in hybrid_search_filtered (executor.nim)
Low (4):
- Raft loadState logs error instead of silent discard
- Replication healthCheck double-close fixed
- Lexer readIdent double column counting fixed
- WebSocket frame 32-bit overflow guard
All 448 tests passing, 0 failures. Bump version to 1.1.7.
2026-05-29 14:17:41 +03:00
dimgigov