mirror of
https://github.com/k3s-io/kubernetes.git
synced 2025-07-22 11:21:47 +00:00
Merge pull request #63779 from wojtek-t/number_of_watchers_metrics
Automatic merge from submit-queue (batch tested with PRs 63792, 63495, 63742, 63332, 63779). If you want to cherry-pick this change to another branch, please follow the instructions <a href="https://github.com/kubernetes/community/blob/master/contributors/devel/cherry-picks.md">here</a>. Track a metrics of number of registered watchers in apiserver
This commit is contained in:
commit
bd0d093701
@ -30,6 +30,7 @@ import (
|
||||
utilruntime "k8s.io/apimachinery/pkg/util/runtime"
|
||||
"k8s.io/apimachinery/pkg/watch"
|
||||
"k8s.io/apiserver/pkg/endpoints/handlers/negotiation"
|
||||
"k8s.io/apiserver/pkg/endpoints/metrics"
|
||||
"k8s.io/apiserver/pkg/endpoints/request"
|
||||
"k8s.io/apiserver/pkg/server/httplog"
|
||||
"k8s.io/apiserver/pkg/util/wsstream"
|
||||
@ -140,6 +141,10 @@ type WatchServer struct {
|
||||
// ServeHTTP serves a series of encoded events via HTTP with Transfer-Encoding: chunked
|
||||
// or over a websocket connection.
|
||||
func (s *WatchServer) ServeHTTP(w http.ResponseWriter, req *http.Request) {
|
||||
kind := s.Scope.Kind
|
||||
metrics.RegisteredWatchers.WithLabelValues(kind.Group, kind.Version, kind.Kind).Inc()
|
||||
defer metrics.RegisteredWatchers.WithLabelValues(kind.Group, kind.Version, kind.Kind).Dec()
|
||||
|
||||
w = httplog.Unlogged(w)
|
||||
|
||||
if wsstream.IsWebSocketRequest(req) {
|
||||
|
@ -93,6 +93,14 @@ var (
|
||||
},
|
||||
[]string{"requestKind"},
|
||||
)
|
||||
// RegisteredWatchers is a number of currently registered watchers splitted by resource.
|
||||
RegisteredWatchers = prometheus.NewGaugeVec(
|
||||
prometheus.GaugeOpts{
|
||||
Name: "apiserver_registered_watchers",
|
||||
Help: "Number of currently registered watchers for a given resources",
|
||||
},
|
||||
[]string{"group", "version", "kind"},
|
||||
)
|
||||
// Because of volatality of the base metric this is pre-aggregated one. Instead of reporing current usage all the time
|
||||
// it reports maximal usage during the last second.
|
||||
currentInflightRequests = prometheus.NewGaugeVec(
|
||||
@ -111,6 +119,7 @@ var (
|
||||
requestLatenciesSummary,
|
||||
responseSizes,
|
||||
DroppedRequests,
|
||||
RegisteredWatchers,
|
||||
currentInflightRequests,
|
||||
}
|
||||
)
|
||||
|
Loading…
Reference in New Issue
Block a user