Prometheus query metricset
Stack
This is the query metricset to query from querying API of Prometheus.
The following configuration performs an instant query for up metric at a single point in time:
- module: prometheus period: 10s hosts: ["localhost:9090"] metricsets: ["query"] queries: - name: 'up' path: '/api/v1/query' params: query: "up" More complex PromQL expressions can also be used like the following one which calculates the per-second rate of HTTP requests as measured over the last 5 minutes.
- module: prometheus period: 10s hosts: ["localhost:9090"] metricsets: ["query"] queries: - name: "rate_http_requests_total" path: "/api/v1/query" params: query: "rate(prometheus_http_requests_total[5m])" The following example evaluates the expression up over a 30-second range with a query resolution of 15 seconds:
- module: prometheus period: 10s metricsets: ["query"] hosts: ["node:9100"] queries: - name: "up_master" path: "/api/v1/query_range" params: query: "up{node='master01'}" start: "2019-12-20T23:30:30.000Z" end: "2019-12-21T23:31:00.000Z" step: 15s For a description of each field in the metricset, see the exported fields section.
Here is an example document generated by this metricset:
{ "@timestamp": "2017-10-12T08:05:34.853Z", "event": { "dataset": "prometheus.query", "duration": 115000, "module": "prometheus" }, "metricset": { "name": "query", "period": 10000 }, "prometheus": { "labels": { "__name__": "go_threads", "instance": "localhost:9090", "job": "prometheus" }, "query": { "go_threads": 18 } }, "service": { "address": "localhost:32769", "type": "prometheus" } }