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limit number of open connections

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Refs #1740

also, expose limit option for number concurrent streams for gRPC
(unlimited by default)
This commit is contained in:
Anton Kaliaev
2018-06-20 18:38:42 +04:00
parent 3e1baf68f8
commit 936a655990
15 changed files with 245 additions and 38 deletions
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21
rpc/lib/server/http_server.go
View File

@@ -12,12 +12,20 @@ import (
"time"
"github.com/pkg/errors"
"golang.org/x/net/netutil"
types "github.com/tendermint/tendermint/rpc/lib/types"
"github.com/tendermint/tmlibs/log"
)
func StartHTTPServer(listenAddr string, handler http.Handler, logger log.Logger) (listener net.Listener, err error) {
// Config is an RPC server configuration.
type Config struct {
MaxOpenConnections int
}
// StartHTTPServer starts an HTTP server on listenAddr with the given handler.
// It wraps handler with RecoverAndLogHandler.
func StartHTTPServer(listenAddr string, handler http.Handler, logger log.Logger, config Config) (listener net.Listener, err error) {
var proto, addr string
parts := strings.SplitN(listenAddr, "://", 2)
if len(parts) != 2 {
@@ -30,6 +38,9 @@ func StartHTTPServer(listenAddr string, handler http.Handler, logger log.Logger)
if err != nil {
return nil, errors.Errorf("Failed to listen on %v: %v", listenAddr, err)
}
if config.MaxOpenConnections > 0 {
listener = netutil.LimitListener(listener, config.MaxOpenConnections)
}
go func() {
err := http.Serve(
@@ -41,7 +52,10 @@ func StartHTTPServer(listenAddr string, handler http.Handler, logger log.Logger)
return listener, nil
}
func StartHTTPAndTLSServer(listenAddr string, handler http.Handler, certFile, keyFile string, logger log.Logger) (listener net.Listener, err error) {
// StartHTTPAndTLSServer starts an HTTPS server on listenAddr with the given
// handler.
// It wraps handler with RecoverAndLogHandler.
func StartHTTPAndTLSServer(listenAddr string, handler http.Handler, certFile, keyFile string, logger log.Logger, config Config) (listener net.Listener, err error) {
var proto, addr string
parts := strings.SplitN(listenAddr, "://", 2)
if len(parts) != 2 {
@@ -54,6 +68,9 @@ func StartHTTPAndTLSServer(listenAddr string, handler http.Handler, certFile, ke
if err != nil {
return nil, errors.Errorf("Failed to listen on %v: %v", listenAddr, err)
}
if config.MaxOpenConnections > 0 {
listener = netutil.LimitListener(listener, config.MaxOpenConnections)
}
go func() {
err := http.ServeTLS(