Add memory consumption telemetry logs#169
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- Add src/telemetry.mjs: - computeDatabaseSizeBytes() to measure store size in bytes - logDatabaseSize() to log size + memory count as structured JSON - instrumentQuery() to wrap any query function with duration/result-count logging - Wire logDatabaseSize into createStatsServer so database size is logged on every stats request, with an injectable logger for testability - Add tests for telemetry.mjs and a new createStatsServer logging test
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Closes #54
What this PR does
Adds instrumentation logging database size and query metrics, so
resource usage can be monitored over time.
Changes
src/telemetry.mjs:computeDatabaseSizeBytes(memoryStore)— measures store size in byteslogDatabaseSize(memoryStore, logger)— logs size + memory count asstructured JSON (
{ event: "database_size", bytes, memoryCount, timestamp })instrumentQuery(queryFn, logger)— wraps any query function (e.g.retrieveMemories) to log duration and result count without changing
its return value (
{ event: "query_metrics", durationMs, resultCount, timestamp })logDatabaseSizeintocreateStatsServer, so database size islogged on every stats request. The logger is injectable (defaults to
console.log) for testability.
Tests
Added
test/telemetry.test.mjscovering size computation, size logging,empty stores, and query instrumentation (including zero-result queries).
Added a new test in
test/memory-stats.test.mjsconfirming createStatsServerlogs database size on each real HTTP request.