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Updated Prometheus metrics (#11141)

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* Add metrics for nodes online and offline
* Add cluster capacity metrics
* Introduce v2 metrics
This commit is contained in:
Ritesh H Shukla
2021-01-18 20:35:38 -08:00
committed by GitHub
parent 3bda8f755c
commit b4add82bb6
27 changed files with 1669 additions and 252 deletions
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32
cmd/peer-rest-server.go
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@@ -801,7 +801,7 @@ func (s *peerRESTServer) SignalServiceHandler(w http.ResponseWriter, r *http.Req
// ListenHandler sends http trace messages back to peer rest client
func (s *peerRESTServer) ListenHandler(w http.ResponseWriter, r *http.Request) {
if !s.IsValid(w, r) {
s.writeErrorResponse(w, errors.New("Invalid request"))
s.writeErrorResponse(w, errors.New("invalid request"))
return
}
@@ -809,7 +809,7 @@ func (s *peerRESTServer) ListenHandler(w http.ResponseWriter, r *http.Request) {
var prefix string
if len(values[peerRESTListenPrefix]) > 1 {
s.writeErrorResponse(w, errors.New("Invalid request"))
s.writeErrorResponse(w, errors.New("invalid request"))
return
}
@@ -824,7 +824,7 @@ func (s *peerRESTServer) ListenHandler(w http.ResponseWriter, r *http.Request) {
var suffix string
if len(values[peerRESTListenSuffix]) > 1 {
s.writeErrorResponse(w, errors.New("Invalid request"))
s.writeErrorResponse(w, errors.New("invalid request"))
return
}
@@ -1004,7 +1004,7 @@ func (s *peerRESTServer) IsValid(w http.ResponseWriter, r *http.Request) bool {
// GetBandwidth gets the bandwidth for the buckets requested.
func (s *peerRESTServer) GetBandwidth(w http.ResponseWriter, r *http.Request) {
if !s.IsValid(w, r) {
s.writeErrorResponse(w, errors.New("Invalid request"))
s.writeErrorResponse(w, errors.New("invalid request"))
return
}
bucketsString := r.URL.Query().Get("buckets")
@@ -1025,6 +1025,29 @@ func (s *peerRESTServer) GetBandwidth(w http.ResponseWriter, r *http.Request) {
w.(http.Flusher).Flush()
}
// GetPeerMetrics gets the metrics to be federated across peers.
func (s *peerRESTServer) GetPeerMetrics(w http.ResponseWriter, r *http.Request) {
if !s.IsValid(w, r) {
s.writeErrorResponse(w, errors.New("invalid request"))
}
w.WriteHeader(http.StatusOK)
w.(http.Flusher).Flush()
doneCh := make(chan struct{})
defer close(doneCh)
enc := gob.NewEncoder(w)
ch := ReportMetrics(r.Context(), GetGeneratorsForPeer)
for m := range ch {
if err := enc.Encode(m); err != nil {
s.writeErrorResponse(w, errors.New("Encoding metric failed: "+err.Error()))
return
}
}
w.(http.Flusher).Flush()
}
// registerPeerRESTHandlers - register peer rest router.
func registerPeerRESTHandlers(router *mux.Router) {
server := &peerRESTServer{}
@@ -1064,4 +1087,5 @@ func registerPeerRESTHandlers(router *mux.Router) {
subrouter.Methods(http.MethodPost).Path(peerRESTVersionPrefix + peerRESTMethodGetBandwidth).HandlerFunc(httpTraceHdrs(server.GetBandwidth))
subrouter.Methods(http.MethodPost).Path(peerRESTVersionPrefix + peerRESTMethodGetMetacacheListing).HandlerFunc(httpTraceHdrs(server.GetMetacacheListingHandler))
subrouter.Methods(http.MethodPost).Path(peerRESTVersionPrefix + peerRESTMethodUpdateMetacacheListing).HandlerFunc(httpTraceHdrs(server.UpdateMetacacheListingHandler))
subrouter.Methods(http.MethodPost).Path(peerRESTVersionPrefix + peerRESTMethodGetPeerMetrics).HandlerFunc(httpTraceHdrs(server.GetPeerMetrics))
}