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Sample PromQL queries
Review sample PromQL queries that you can run in the Prometheus expression browser.
Open the expression browser
Port-forward the Prometheus pod in your cluster.
Access the Prometheus expression browser.
Service mesh workloads queries
| Metric | PromQL query |
|---|---|
| Request rate for a given service | rate(istio_requests_total{destination_app="<service_ID>"}[5m]) |
| Request rate between source and destination workload | rate(istio_requests_total{source_workload="<source_workload>", destination_workload="<workload_ID>"}[5m]) |
| Successful request rate to a destination workload | rate(istio_requests_total{response_code=~"[2-3].*", destination_workload="<workload_ID>"}[5m]) |
| Rate of failing requests to a destination workload | rate(istio_requests_total{response_code=~"[4-5].*", destination_workload="<workload_ID>"}[5m]) |
| Number of new requests within a certain timeframe | sum(increase(istio_requests_total{}[5m])) by (workload_id, destination_workload_id) |
| Number of total requests for a source workload | sum(istio_requests_total{source_workload="<souce_workload>"}) by (workload_id,destination_workload_id, response_code) |
Ingress gateway queries
| Metric | PromQL query |
|---|---|
| Request rate for the ingress gateway | rate(istio_requests_total{source_workload="istio-ingressgateway-1-22"}[5m]) |
| Request rate between the ingress gateway and a destination workload | rate(istio_requests_total{source_workload="istio-ingressgateway-1-22", destination_workload="<workload_ID>"}[5m]) |
| Successful request rate to a destination workload | rate(istio_requests_total{response_code=~"[2-3].*", destination_workload="<workload_ID>"}[5m]) |
| Rate of failing requests to a destination workload | rate(istio_requests_total{response_code=~"[4-5].*", destination_workload="<workload_ID>"}[5m]) |
| Number of new requests within a certain timeframe | sum(increase(istio_requests_total{}[5m])) by (workload_id, destination_workload_id) |