Kiu/VictoriaMetrics
Kiu/VictoriaMetrics
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app/vmselect: add a placeholder for /api/v1/metadata, which could be requested by Grafana

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See https://prometheus.io/docs/prometheus/latest/querying/api/#querying-metric-metadata

VictoriaMetrics doesn't collect any metadata for metrics, so just return empty response.
This commit is contained in:
Aliaksandr Valialkin 2020-02-04 15:53:15 +02:00
parent 42864bb52f
commit 834051e5b2
1 changed files with 9 additions and 2 deletions
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11
app/vmselect/main.go
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@ -196,6 +196,12 @@ func RequestHandler(w http.ResponseWriter, r *http.Request) bool {
w.Header().Set("Content-Type", "application/json")
fmt.Fprintf(w, "%s", `{"status":"success","data":{"alerts":[]}}`)
return true
case "/api/v1/metadata":
// Return dumb placeholder
metadataRequests.Inc()
w.Header().Set("Content-Type", "application/json")
fmt.Fprintf(w, "%s", `{"status":"success","data":{}}`)
return true
case "/api/v1/admin/tsdb/delete_series":
deleteRequests.Inc()
authKey := r.FormValue("authKey")
@ -258,6 +264,7 @@ var (
federateRequests = metrics.NewCounter(`vm_http_requests_total{path="/federate"}`)
federateErrors = metrics.NewCounter(`vm_http_request_errors_total{path="/federate"}`)
rulesRequests = metrics.NewCounter(`vm_http_requests_total{path="/api/v1/rules"}`)
alertsRequests = metrics.NewCounter(`vm_http_requests_total{path="/api/v1/alerts"}`)
rulesRequests = metrics.NewCounter(`vm_http_requests_total{path="/api/v1/rules"}`)
alertsRequests = metrics.NewCounter(`vm_http_requests_total{path="/api/v1/alerts"}`)
metadataRequests = metrics.NewCounter(`vm_http_requests_total{path="/api/v1/metadata"}`)
)