Tetrate Service BridgeVersion: 1.5.x
Sidecar RED Metrics
note
By default OAP in the Control Plane does not expose RED metrics.
To expose RED telemetry, set environment variable SW_EXPORTER_ENABLE_OC=true
when starting OAP.
TSB provides a single Prometheus-compatible endpoint to expose sidecar-originated RED application metrics via the OAP service. Each control plane cluster exposes a Prometheus-scraping endpoint to query with the following command:
kubectl port-forward -n <controlplane-namespace> svc/oap 1234:1234 &
curl localhost:1234/metrics -H "X-B3-Sampled: 1"
Exported RED metrics include:
Request status codes
# HELP tsb_oap_service_status_code The number of status code
# TYPE tsb_oap_service_status_code counter
tsb_oap_service_status_code{status="<STATUS|ALL>",svc="SERVICE_NAME",} COUNT
Request latency
# HELP tsb_oap_service_latency_sum The sum of latency
# TYPE tsb_oap_service_latency_sum counter
tsb_oap_service_latency_sum{svc="SERVICE_NAME",} SUM
# HELP tsb_oap_service_latency_count The number of requests
# TYPE tsb_oap_service_latency_count counter
tsb_oap_service_latency_count{svc="SERVICE_NAME",} COUNT