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https://github.com/etcd-io/etcd.git
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52101e6e93
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.
68 lines
2.3 KiB
Go
68 lines
2.3 KiB
Go
// Copyright 2016 The etcd Authors
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//
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// Licensed under the Apache License, Version 2.0 (the "License");
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// you may not use this file except in compliance with the License.
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// You may obtain a copy of the License at
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//
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// http://www.apache.org/licenses/LICENSE-2.0
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//
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// Unless required by applicable law or agreed to in writing, software
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// distributed under the License is distributed on an "AS IS" BASIS,
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// WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
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// See the License for the specific language governing permissions and
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// limitations under the License.
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package v3rpc
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import (
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"crypto/tls"
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"math"
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"github.com/coreos/etcd/etcdserver"
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pb "github.com/coreos/etcd/etcdserver/etcdserverpb"
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"google.golang.org/grpc"
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"google.golang.org/grpc/credentials"
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"google.golang.org/grpc/grpclog"
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"google.golang.org/grpc/health"
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healthpb "google.golang.org/grpc/health/grpc_health_v1"
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)
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const (
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grpcOverheadBytes = 512 * 1024
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maxStreams = math.MaxUint32
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)
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func init() {
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grpclog.SetLogger(plog)
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}
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func Server(s *etcdserver.EtcdServer, tls *tls.Config) *grpc.Server {
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var opts []grpc.ServerOption
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opts = append(opts, grpc.CustomCodec(&codec{}))
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if tls != nil {
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opts = append(opts, grpc.Creds(credentials.NewTLS(tls)))
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}
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opts = append(opts, grpc.UnaryInterceptor(newUnaryInterceptor(s)))
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opts = append(opts, grpc.StreamInterceptor(newStreamInterceptor(s)))
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opts = append(opts, grpc.MaxMsgSize(int(s.Cfg.MaxRequestBytes+grpcOverheadBytes)))
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opts = append(opts, grpc.MaxConcurrentStreams(maxStreams))
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grpcServer := grpc.NewServer(opts...)
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pb.RegisterKVServer(grpcServer, NewQuotaKVServer(s))
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pb.RegisterWatchServer(grpcServer, NewWatchServer(s))
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pb.RegisterLeaseServer(grpcServer, NewQuotaLeaseServer(s))
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pb.RegisterClusterServer(grpcServer, NewClusterServer(s))
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pb.RegisterAuthServer(grpcServer, NewAuthServer(s))
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pb.RegisterMaintenanceServer(grpcServer, NewMaintenanceServer(s))
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// server should register all the services manually
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// use empty service name for all etcd services' health status,
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// see https://github.com/grpc/grpc/blob/master/doc/health-checking.md for more
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hsrv := health.NewServer()
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hsrv.SetServingStatus("", healthpb.HealthCheckResponse_SERVING)
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healthpb.RegisterHealthServer(grpcServer, hsrv)
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return grpcServer
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}
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