feat: embedding metrics, Grafana dashboard overhaul & monitoring stack#137
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feat: embedding metrics, Grafana dashboard overhaul & monitoring stack#137
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Metrics: - InstrumentedEmbedder wrapper: transparent proxy that records embedding latency (histogram) and error count (counter) per provider - Refactored metrics module into sub-modules (http, embedding, worker, security, render, types, middleware) for maintainability - Source detection middleware (api/mcp/sdk/internal) via header inspection Grafana Dashboard: - Complete rebuild: 5 categorized rows (Overview, HTTP Traffic, HTTP Latency, Embedding, Infrastructure) with 37 panels - Split p50/p95/p99 into separate panels for HTTP and Embedding latency - English descriptions on all panels with route reference legends - Added pie charts, entity queue pressure, build info panels Monitoring Stack (opt-in): - Prometheus + Grafana services under 'monitoring' docker-compose profile - Zero impact on normal 'docker compose up' workflow - Entity worker env vars (ENTITY_WORKER_COUNT/POOL_SIZE/QUEUE_SIZE) exposed via docker-compose for tuning Co-authored-by: Copilot <223556219+Copilot@users.noreply.github.com>
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XuPeng-SH
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Mar 25, 2026
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Summary
Adds embedding latency/error observability, completely rebuilds the Grafana dashboard, and provides an opt-in monitoring stack via docker-compose.
Metrics Code
EmbeddingProviderthat records per-provider latency histograms and error countershttp,embedding,worker,security,render,types,middleware)api/mcp/sdk/internalvia header inspectionGrafana Dashboard
Monitoring Stack (opt-in, zero impact on normal workflow)
monitoringdocker-compose profiledocker compose --profile monitoring up -dto enableENTITY_WORKER_COUNT/POOL_SIZE/QUEUE_SIZE) exposed for tuningLoad Test Validation