Set idle and readheader timeouts

kubernetes · Jul 28, 2021 · 77e687c · 77e687c
1 parent 7b03d83
commit 77e687c
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Showing 3 changed files with 13 additions and 1 deletion.
diff --git a/pkg/kubelet/server/server.go b/pkg/kubelet/server/server.go
@@ -151,6 +151,7 @@ func ListenAndServeKubeletServer(
 	s := &http.Server{
 		Addr:           net.JoinHostPort(address.String(), strconv.FormatUint(uint64(port), 10)),
 		Handler:        &handler,
+		IdleTimeout:    90 * time.Second, // matches http.DefaultTransport keep-alive timeout
 		ReadTimeout:    4 * 60 * time.Minute,
 		WriteTimeout:   4 * 60 * time.Minute,
 		MaxHeaderBytes: 1 << 20,
@@ -178,6 +179,9 @@ func ListenAndServeKubeletReadOnlyServer(host HostInterface, resourceAnalyzer st
 	server := &http.Server{
 		Addr:           net.JoinHostPort(address.String(), strconv.FormatUint(uint64(port), 10)),
 		Handler:        &s,
+		IdleTimeout:    90 * time.Second, // matches http.DefaultTransport keep-alive timeout
+		ReadTimeout:    4 * 60 * time.Minute,
+		WriteTimeout:   4 * 60 * time.Minute,
 		MaxHeaderBytes: 1 << 20,
 	}
 

diff --git a/staging/src/k8s.io/apiserver/pkg/server/deprecated_insecure_serving.go b/staging/src/k8s.io/apiserver/pkg/server/deprecated_insecure_serving.go
@@ -45,6 +45,9 @@ func (s *DeprecatedInsecureServingInfo) Serve(handler http.Handler, shutdownTime
 		Addr:           s.Listener.Addr().String(),
 		Handler:        handler,
 		MaxHeaderBytes: 1 << 20,
+
+		IdleTimeout:       90 * time.Second, // matches http.DefaultTransport keep-alive timeout
+		ReadHeaderTimeout: 32 * time.Second, // just shy of requestTimeoutUpperBound
 	}
 
 	if len(s.Name) > 0 {

diff --git a/staging/src/k8s.io/apiserver/pkg/server/secure_serving.go b/staging/src/k8s.io/apiserver/pkg/server/secure_serving.go
@@ -159,14 +159,19 @@ func (s *SecureServingInfo) Serve(handler http.Handler, shutdownTimeout time.Dur
 		Handler:        handler,
 		MaxHeaderBytes: 1 << 20,
 		TLSConfig:      tlsConfig,
+
+		IdleTimeout:       90 * time.Second, // matches http.DefaultTransport keep-alive timeout
+		ReadHeaderTimeout: 32 * time.Second, // just shy of requestTimeoutUpperBound
 	}
 
 	// At least 99% of serialized resources in surveyed clusters were smaller than 256kb.
 	// This should be big enough to accommodate most API POST requests in a single frame,
 	// and small enough to allow a per connection buffer of this size multiplied by `MaxConcurrentStreams`.
 	const resourceBody99Percentile = 256 * 1024
 
-	http2Options := &http2.Server{}
+	http2Options := &http2.Server{
+		IdleTimeout: 90 * time.Second, // matches http.DefaultTransport keep-alive timeout
+	}
 
 	// shrink the per-stream buffer and max framesize from the 1MB default while still accommodating most API POST requests in a single frame
 	http2Options.MaxUploadBufferPerStream = resourceBody99Percentile