Observability

Distributed tracing, golden signals, service graphs, and making sense of mesh telemetry at scale.

2 articles

Mar 26, 2026 · 12 min read

Istio Observability Series (2/2): Golden Signals for the Control Plane — Monitoring istiod

Part 2 of our observability series. The golden signals for Istio's control plane — xDS push latency, config convergence, push rejections, certificate health, and istiod scaling thresholds.

istio istiod observability prometheus grafana metrics xds

Mar 25, 2026 · 12 min read

Istio Observability Series (1/2): Golden Signals for the Data Plane — HTTP, TLS, and gRPC

Part 1 of our observability series. The golden signals you should monitor for Istio's data plane — broken down by HTTP, TLS, and gRPC protocols. Specific Prometheus metrics, PromQL queries, and production alert rules.

istio envoy observability prometheus grafana metrics