Commit graph

8 commits

Author SHA1 Message Date
54865b3505 feat: add setMaxSize() for dynamic cache resizing
UnifiedCache.setMaxSize() allows runtime resizing of the cache maximum.
When the new limit is smaller than current usage, lowest-value items are
evicted until the cache fits. Used by Cortex's ResourceManager to
rebalance cache vs instance memory as brainy instances are created and
evicted in multi-tenant deployments.

Also adds getMaxSize() for observability.
2026-03-22 16:52:02 -07:00
1513e297ef feat: wire plugin system with provider resolution, storage factories, and browser deprecation
- Wire PluginRegistry into Brainy init() with provider resolution for distance,
  metadataIndex, graphIndex, embeddings, roaring, msgpack, and storage adapters
- Add setupStorage() factory that resolves storage:* providers from plugins before
  falling back to built-in createStorage()
- Export internals API (setGlobalCache, UnifiedCache, EntityIdMapper, etc.) for
  cortex plugin consumption
- Add plugin.test.ts verifying registration, activation, and provider resolution
- Deprecate browser support (OPFS, Web Workers, WASM embeddings) with warnings
  in preparation for v8.0 server-only release
- FileSystemStorage: fix setupStorage resolution for mmap-filesystem provider
2026-01-31 12:02:13 -08:00
364360d447 fix: exclude __words__ keyword index from corruption detection and getStats()
The __words__ keyword index stores 50-5000 entries per entity (one per
word), which inflated avg entries/entity well above the corruption
threshold of 100. This caused:

1. validateConsistency() to falsely detect corruption on every startup,
   triggering unnecessary clearAllIndexData() + rebuild() cycles
2. getStats() to log false "Metadata index may be corrupted" warnings
   and report inflated totalEntries/totalIds stats

Both methods now skip __words__ when counting, so stats and health
checks reflect metadata fields only (noun, type, createdAt, etc.).
Keyword search is unaffected since the __words__ field index itself
is not modified.
2026-01-27 15:38:21 -08:00
2ba69eccdc fix(vfs): resolve two critical VFS bugs causing directory listing corruption
Bug 1: verbCountsByType optimization skipping requested verb types
- After restart, stale statistics could cause VerbType.Contains to be skipped
- readdir() would return empty/incomplete results
- Fixed by never skipping verb types explicitly requested in filter
- Added fast path for sourceId + verbType combo (common VFS pattern)
- Save statistics on first entity of each type (not just every 100th)

Bug 2: UnifiedCache not invalidated on path deletion
- rmdir() cleared local caches but NOT the global UnifiedCache
- When folder recreated, resolve() returned stale entity ID
- Caused "Source entity not found" errors
- Fixed by adding deleteByPrefix() to UnifiedCache
- Fixed invalidatePath() to also clear UnifiedCache entries

Files modified:
- src/storage/baseStorage.ts (verbCountsByType fix + fast path)
- src/utils/unifiedCache.ts (deleteByPrefix method)
- src/vfs/PathResolver.ts (cache invalidation fix)

Tests added:
- tests/unit/storage/vfs-mkdir-bug.test.ts (7 tests)

Reported by: Soulcraft Workshop team

🤖 Generated with [Claude Code](https://claude.com/claude-code)

Co-Authored-By: Claude <noreply@anthropic.com>
2025-12-04 11:22:30 -08:00
829a8a61a2 perf: more aggressive cache fairness to prevent thrashing
v3.40.1 fixed the eviction formula but fairness parameters were too gentle,
allowing metadata to regenerate faster than eviction could keep up. This
caused cache thrashing: evict 20% → regenerate → evict 20% → repeat.

Changes to prevent thrashing:
1. Fairness interval: 60s → 30s (faster response to imbalances)
2. Size threshold: 90% → 70% (earlier intervention)
3. Access threshold: <10% → <15% (catch more imbalances)
4. Eviction amount: 20% → 50% (more aggressive cleanup)
5. Proactive checking: Added immediate fairness check during set() operations
   to prevent imbalance formation rather than just reacting to it

This should eliminate the "still creating relationships" slowdown reported
by Soulcraft Studio while maintaining the OOM crash prevention from v3.40.1.
2025-10-13 11:50:53 -07:00
8e7b52bda9 fix: correct cache eviction formula to prioritize high-value items
Fixed inverted eviction scoring formula in UnifiedCache that was causing
metadata (cheap to rebuild) to be retained while HNSW vectors (expensive,
frequently accessed) were evicted. This was causing OOM crashes during
large Excel imports with relationship extraction.

Changes:
- evictLowestValue(): Changed accessScore / rebuildCost to accessScore * rebuildCost
- evictForSize(): Changed accessScore / rebuildCost to accessScore * rebuildCost
- evictType(): Changed accessScore / rebuildCost to accessScore * rebuildCost

With the corrected formula, items with higher access counts AND higher
rebuild costs get higher scores and are protected from eviction.

Test coverage: Added comprehensive eviction scoring tests

Fixes: Type metadata hogging 99.7% of cache with only 3.7% access rate
2025-10-13 11:21:19 -07:00
46c6af3f21 feat: implement always-adaptive caching with getCacheStats monitoring
Replaces lazy mode concept with always-adaptive caching strategy:

- Rename getLazyModeStats() → getCacheStats() with enhanced metrics
- Change lazyModeEnabled boolean → cachingStrategy enum ('preloaded' | 'on-demand')
- Update preloading threshold from 30% to 80% for better cache utilization
- Add comprehensive production monitoring and diagnostics
- Add memory detection for containers (Docker/K8s cgroups v1/v2)
- Add adaptive memory sizing from 2GB to 128GB+ systems

Breaking changes: None (backward compatible, deprecated lazy option ignored)

New APIs:
- getCacheStats(): Comprehensive cache performance statistics
- cachingStrategy field: Transparent strategy reporting
- Enhanced fairness metrics and memory pressure monitoring

Documentation:
- Add migration guide for v3.36.0
- Add operations/capacity-planning.md for enterprise deployments
- Update all examples and troubleshooting guides
- Rename monitor-lazy-mode.ts → monitor-cache-performance.ts
2025-10-10 14:09:30 -07:00
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Visit https://soulcraft.com for Brain Cloud integration.
2025-08-26 12:32:21 -07:00