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app/{vminsert,vmselect}: export vminsert_request_duration_seconds and vmselect_request_duration_seconds histograms

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This commit is contained in:
Aliaksandr Valialkin 2021-07-07 13:25:16 +03:00
parent ceda2b1df4
commit 9c19719ad6
3 changed files with 9 additions and 0 deletions
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5
app/vminsert/main.go
View file

@ -154,6 +154,9 @@ func main() {
}
func requestHandler(w http.ResponseWriter, r *http.Request) bool {
startTime := time.Now()
defer requestDuration.UpdateDuration(startTime)
if r.URL.Path == "/" {
if r.Method != "GET" {
return false
@ -242,6 +245,8 @@ func requestHandler(w http.ResponseWriter, r *http.Request) bool {
}
var (
requestDuration = metrics.NewHistogram(`vminsert_request_duration_seconds`)
prometheusWriteRequests = metrics.NewCounter(`vm_http_requests_total{path="/insert/{}/prometheus/", protocol="promremotewrite"}`)
prometheusWriteErrors = metrics.NewCounter(`vm_http_request_errors_total{path="/insert/{}/prometheus/", protocol="promremotewrite"}`)

3
app/vmselect/main.go
View file

@ -137,6 +137,7 @@ func requestHandler(w http.ResponseWriter, r *http.Request) bool {
return true
}
startTime := time.Now()
defer requestDuration.UpdateDuration(startTime)
// Limit the number of concurrent queries.
select {
case concurrencyCh <- struct{}{}:
@ -516,6 +517,8 @@ func sendPrometheusError(w http.ResponseWriter, r *http.Request, err error) {
}
var (
requestDuration = metrics.NewHistogram(`vmselect_request_duration_seconds`)
labelValuesRequests = metrics.NewCounter(`vm_http_requests_total{path="/select/{}/prometheus/api/v1/label/{}/values"}`)
labelValuesErrors = metrics.NewCounter(`vm_http_request_errors_total{path="/select/{}/prometheus/api/v1/label/{}/values"}`)

1
docs/CHANGELOG.md
View file

@ -9,6 +9,7 @@ sort: 15
* FEATURE: vmagent: dynamically reload client TLS certificates from disk on every [mTLS connection](https://developers.cloudflare.com/cloudflare-one/identity/devices/mutual-tls-authentication). This should allow using `vmagent` with [Istio service mesh](https://istio.io/latest/about/service-mesh/). See [this feature request](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1420).
* FEATURE: reduce memory usage when performing heavy queries over big number of time series.
* FEATURE: log http request path plus all the query args on errors during request processing. Previously only http request path was logged without query args, so it could be hard debugging such errors.
* FEATURE: export `vmselect_request_duration_seconds` and `vminsert_request_duration_seconds` [VictoriaMetrics histograms](https://valyala.medium.com/improving-histogram-usability-for-prometheus-and-grafana-bc7e5df0e350) at `/metrics` page. These histograms can be used for determining latency distribution for the served requests.
* BUGFIX: vmagent: remove `{ %space %}` typo in `/targets` output. The typo has been introduced in v1.62.0. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1408).
* BUGFIX: vmagent: fix CSS styles on `/targets` page. See [this issue](https://github.com/VictoriaMetrics/VictoriaMetrics/issues/1422).