perf: add local in-memory cache for session-end jobs#207
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ayushjhanwar-png wants to merge 1 commit into
Open
perf: add local in-memory cache for session-end jobs#207ayushjhanwar-png wants to merge 1 commit into
ayushjhanwar-png wants to merge 1 commit into
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Replace per-event Redis lookups (HGETALL + getState) with a local Map cache in the worker pod. GroupMQ's deterministic SHA1 sharding guarantees the same deviceId always routes to the same pod, making the local cache safe. - Cache session-end Job objects after creation and on Redis fallback hit - Skip Redis on cache hit, only call changeDelay to reset the timer - Invalidate cache when session-end job fires - Add periodic cleanup (60s sweep) and bounded size (50K max entries) - Add tests for cache hit, cache miss, and cache invalidation Expected impact: ~66% reduction in session-related Redis commands (from ~30K to ~10K calls/sec at 10K events/sec).
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Replace per-event Redis lookups (HGETALL + getState) with a local Map cache in the worker pod. GroupMQ's deterministic SHA1 sharding guarantees the same deviceId always routes to the same pod, making the local cache safe.
Expected impact: ~66% reduction in session-related Redis commands (from ~30K to ~10K calls/sec at 10K events/sec).