Use PostgreSQL unlogged tables + LISTEN/NOTIFY for multi-worker support#2
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Use PostgreSQL unlogged tables + LISTEN/NOTIFY for multi-worker support#2
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Moves the three in-memory state systems (rate limiter, presence, gateway event fan-out) that previously forced --workers 1 into shared PostgreSQL unlogged tables with cross-worker notification via LISTEN/NOTIFY. Key changes: - New src/vox/db/shared_state.py: creates unlogged _rate_buckets, _presence, and _connections tables; runs a background LISTEN loop for cross-worker event dispatch; falls back to in-memory dicts on SQLite for dev compatibility. - Rate limiter: check() is now async, delegates to shared_state for atomic token-bucket operations in PostgreSQL. - Gateway hub: local connections dict stays (WebSockets are process- local), but broadcast() publishes via NOTIFY so other workers deliver events to their own clients. Presence reads/writes go through shared tables. - Snowflake IDs: layout changed to 42-bit ts | 10-bit worker | 12-bit seq so each worker generates collision-free IDs. - Deployment docs updated: --workers 4 default when on PostgreSQL. https://claude.ai/code/session_0113vE6YvpWbp1zCdABBH1r7
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Moves the three in-memory state systems (rate limiter, presence, gateway event fan-out) that previously forced --workers 1 into shared PostgreSQL unlogged tables with cross-worker notification via LISTEN/NOTIFY.
Key changes:
https://claude.ai/code/session_0113vE6YvpWbp1zCdABBH1r7