address comments

Signed-off-by: Ryan Leung <[email protected]>

server/embed/config.go

@@ -17,6 +17,7 @@ package embed
 import (
 	"errors"
 	"fmt"
+	"math"
 	"net"
 	"net/http"
 	"net/url"

server/embed/etcd.go

@@ -727,8 +727,8 @@ func (e *Etcd) serveClients() (err error) {
 			Time:    e.cfg.GRPCKeepAliveInterval,
 			Timeout: e.cfg.GRPCKeepAliveTimeout,
 		}))
-		gopts = append(gopts, e.cfg.GRPCAdditionalServerOptions...)
 	}
+	gopts = append(gopts, e.cfg.GRPCAdditionalServerOptions...)
 
 	// start client servers in each goroutine
 	for _, sctx := range e.sctxs {

tests/framework/integration/cluster.go

@@ -556,11 +556,10 @@ type Member struct {
 	Server        *etcdserver.EtcdServer
 	ServerClosers []func()
 
-	GrpcServerOpts           []grpc.ServerOption
-	GrpcAdditionalServerOpts []grpc.ServerOption
-	GrpcServer               *grpc.Server
-	GrpcURL                  string
-	GrpcBridge               *bridge
+	GrpcServerOpts []grpc.ServerOption
+	GrpcServer     *grpc.Server
+	GrpcURL        string
+	GrpcBridge     *bridge
 
 	// ServerClient is a clientv3 that directly calls the etcdserver.
 	ServerClient *clientv3.Client
@@ -700,7 +699,7 @@ func MustNewMember(t testutil.TB, mcfg MemberConfig) *Member {
 			Timeout: mcfg.GrpcKeepAliveTimeout,
 		}))
 	}
-	m.GrpcAdditionalServerOpts = mcfg.GrpcAdditionalServerOptions
+	m.GrpcServerOpts = append(m.GrpcServerOpts, mcfg.GrpcAdditionalServerOptions...)
 	m.ClientMaxCallSendMsgSize = mcfg.ClientMaxCallSendMsgSize
 	m.ClientMaxCallRecvMsgSize = mcfg.ClientMaxCallRecvMsgSize
 	m.UseIP = mcfg.UseIP
@@ -944,8 +943,7 @@ func (m *Member) Launch() error {
 				return err
 			}
 		}
-		opts := append(m.GrpcServerOpts, m.GrpcAdditionalServerOpts...)
-		m.GrpcServer = v3rpc.Server(m.Server, tlscfg, m.GrpcServerRecorder.UnaryInterceptor(), opts...)
+		m.GrpcServer = v3rpc.Server(m.Server, tlscfg, m.GrpcServerRecorder.UnaryInterceptor(), m.GrpcServerOpts...)
 		m.ServerClient = v3client.New(m.Server)
 		lockpb.RegisterLockServer(m.GrpcServer, v3lock.NewLockServer(m.ServerClient))
 		epb.RegisterElectionServer(m.GrpcServer, v3election.NewElectionServer(m.ServerClient))

tests/integration/v3_grpc_test.go

@@ -1912,12 +1912,23 @@ func TestV3LargeRequests(t *testing.T) {
 			if !eqErrGRPC(err, test.expectError) {
 				t.Errorf("#%d: expected error %v, got %v", i, test.expectError, err)
 			}
+
+			// request went through, expect large response back from server
+			if test.expectError == nil {
+				reqget := &pb.RangeRequest{Key: []byte("foo")}
+				// limit receive call size with original value + gRPC overhead bytes
+				_, err = kvcli.Range(context.TODO(), reqget, grpc.MaxCallRecvMsgSize(test.valueSize+512*1024))
+				if err != nil {
+					t.Errorf("#%d: range expected no error, got %v", i, err)
+				}
+			}
+
 		})
 	}
 }
 
-// TestV3AdditionGRPCOptions ensures that configurable GRPCAdditionalServerOptions works as intended.
-func TestV3AdditionGRPCOptions(t *testing.T) {
+// TestV3AdditionalGRPCOptions ensures that configurable GRPCAdditionalServerOptions works as intended.
+func TestV3AdditionalGRPCOptions(t *testing.T) {
 	integration.BeforeTest(t)
 	tests := []struct {
 		maxRequestBytes uint