DeusData/codebase-memory-mcp v0.4.8

on GitHub

Stability & Performance

This release addresses the top-reported stability and performance issues.

SQLite Lock Contention Fix (#52)

• Fix ref counting race condition: ListProjects and watcher's pollAll now use AcquireStore with proper ref counting, preventing the evictor from closing database connections mid-query — the most likely root cause of server hangs requiring SIGKILL
• Stale SHM recovery: After an unclean shutdown (SIGKILL), stale -shm files with orphaned lock state are automatically detected and removed on next startup, preventing deadlocks
• Increased busy_timeout: From 5s to 10s for better tolerance on large databases

OOM Prevention (#49, #46)

• Default GOMEMLIMIT: 2GB memory limit applied by default when not user-configured, preventing unbounded memory growth that caused 13GB+ OOM kills
• Reduced mmap_size: From 256MB to 64MB per database — with multiple projects open, the old value could consume excessive virtual memory

CPU Usage Reduction (#45)

• Watcher base interval: Increased from 1s to 5s — ~5x fewer polling ticks
• Poll interval base: Increased from 1s to 5s — reduces git status frequency for change detection
• Net effect: significantly lower idle CPU usage, especially with multiple projects

Windows Duplicate Database Fix (#50)

• Drive letter normalization: D:\project and d:\project now resolve to the same database, preventing duplicate indexing on Windows

Upgrade

codebase-memory-mcp update

After updating, restart your editor/Claude Code session. Stale SHM files from previous crashes will be automatically cleaned up on first launch.