fix: backfill Chroma vector DB for all projects on startup (#1154)

* fix: backfill all Chroma projects on worker startup

ChromaSync.ensureBackfilled() existed but was never called. After
v10.2.2's bun cache clear destroyed the ONNX model cache, Chroma only
had ~2 days of embeddings while SQLite had 49k+ observations.

- Add static backfillAllProjects() to ChromaSync — iterates all projects
  in SQLite, creates temporary ChromaSync per project, runs smart diff
- Call backfillAllProjects() fire-and-forget on worker startup
- Add 'CHROMA_SYNC' to logger Component type (pre-existing gap)

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

* fix: sanitize project names for Chroma collection naming

Replace characters outside [a-zA-Z0-9._-] with underscores so projects
like "YC Stuff" map to collection "cm__YC_Stuff" instead of failing
Chroma's collection name validation.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

* fix: route backfill to shared cm__claude-mem collection, harden sanitization

- Use single ChromaSync('claude-mem') in backfillAllProjects() instead of
  per-project instances, matching how DatabaseManager and SearchManager
  operate — fixes critical bug where backfilled data landed in orphaned
  collections that no search path reads from
- Strip trailing non-alphanumeric chars from sanitized collection names
  to satisfy Chroma's end-character constraint
- Guard backfill behind Chroma server readiness to avoid N spurious error
  logs when Chroma failed to start
- Use CHROMA_SYNC log component consistently for backfill messages

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

* refactor: pass project as parameter to ensureBackfilled instead of mutating instance state

Eliminates shared mutable state in backfillAllProjects() loop. Project
scoping is now passed explicitly via parameter to both ensureBackfilled()
and getExistingChromaIds(), keeping a single Chroma connection while
avoiding fragile instance property mutation across iterations.

Co-Authored-By: Claude Opus 4.6 <noreply@anthropic.com>

---------

Co-authored-by: Claude Opus 4.6 <noreply@anthropic.com>
This commit is contained in:
Alex Newman
2026-02-17 22:47:46 -05:00
committed by GitHub
parent eea4f599c0
commit ca8421611c
5 changed files with 294 additions and 243 deletions

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