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v3rpc: Let clients establish unlimited streams

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From go-grpc v1.2.0, the number of max streams per client is set to 100
by default by the server side. This change makes it impossible
for third party proxies and custom clients to establish many streams.
This commit is contained in:
Iwasaki Yudai 2017-07-07 20:39:05 -07:00
parent 69e8a9241a
commit 52101e6e93
1 changed files with 6 additions and 1 deletions
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7
etcdserver/api/v3rpc/grpc.go
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@ -16,6 +16,7 @@ package v3rpc
import (
"crypto/tls"
"math"
"github.com/coreos/etcd/etcdserver"
pb "github.com/coreos/etcd/etcdserver/etcdserverpb"
@ -27,7 +28,10 @@ import (
healthpb "google.golang.org/grpc/health/grpc_health_v1"
)
const grpcOverheadBytes = 512 * 1024
const (
grpcOverheadBytes = 512 * 1024
maxStreams = math.MaxUint32
)
func init() {
grpclog.SetLogger(plog)
@ -42,6 +46,7 @@ func Server(s *etcdserver.EtcdServer, tls *tls.Config) *grpc.Server {
opts = append(opts, grpc.UnaryInterceptor(newUnaryInterceptor(s)))
opts = append(opts, grpc.StreamInterceptor(newStreamInterceptor(s)))
opts = append(opts, grpc.MaxMsgSize(int(s.Cfg.MaxRequestBytes+grpcOverheadBytes)))
opts = append(opts, grpc.MaxConcurrentStreams(maxStreams))
grpcServer := grpc.NewServer(opts...)
pb.RegisterKVServer(grpcServer, NewQuotaKVServer(s))