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Periodically flush the reverse proxy.

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This commit is contained in:
Prashanth Balasubramanian 2015-07-23 10:41:52 -07:00
parent 2d88675f22
commit 8c27609382
1 changed files with 12 additions and 1 deletions
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13
pkg/kubectl/proxy_server.go
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@ -24,6 +24,7 @@ import (
"net/url" "net/url"
"regexp" "regexp"
"strings" "strings"
"time"
"github.com/GoogleCloudPlatform/kubernetes/pkg/client" "github.com/GoogleCloudPlatform/kubernetes/pkg/client"
"github.com/golang/glog" "github.com/golang/glog"
@ -36,6 +37,16 @@ const (
DefaultMethodRejectRE = "POST,PUT,PATCH" DefaultMethodRejectRE = "POST,PUT,PATCH"
) )
var (
// The reverse proxy will periodically flush the io writer at this frequency.
// Only matters for long poll connections like the one used to watch. With an
// interval of 0 the reverse proxy will buffer content sent on any connection
// with transfer-encoding=chunked.
// TODO: Flush after each chunk so the client doesn't suffer a 100ms latency per
// watch event.
ReverseProxyFlushInterval = 100 * time.Millisecond
)
// FilterServer rejects requests which don't match one of the specified regular expressions // FilterServer rejects requests which don't match one of the specified regular expressions
type FilterServer struct { type FilterServer struct {
// Only paths that match this regexp will be accepted // Only paths that match this regexp will be accepted
@ -171,7 +182,7 @@ func newProxy(target *url.URL) *httputil.ReverseProxy {
req.URL.Host = target.Host req.URL.Host = target.Host
req.URL.Path = singleJoiningSlash(target.Path, req.URL.Path) req.URL.Path = singleJoiningSlash(target.Path, req.URL.Path)
} }
return &httputil.ReverseProxy{Director: director} return &httputil.ReverseProxy{Director: director, FlushInterval: ReverseProxyFlushInterval}
} }
func newFileHandler(prefix, base string) http.Handler { func newFileHandler(prefix, base string) http.Handler {