From ba299bcaaf616944e3e4568399506d055a82ef1d Mon Sep 17 00:00:00 2001
From: Gyu-Ho Lee <gyuhox@gmail.com>
Date: Tue, 18 Apr 2017 17:46:51 -0700
Subject: [PATCH] embed: signal 'grpcServerC' before cmux serve

CMux.Serve blocks, so grpcServerC was never closed.

Fix https://github.com/coreos/etcdlabs/issues/216.

Signed-off-by: Gyu-Ho Lee <gyuhox@gmail.com>
---
 embed/serve.go | 3 +--
 1 file changed, 1 insertion(+), 2 deletions(-)

diff --git a/embed/serve.go b/embed/serve.go
index 07d2159ce..450516dad 100644
--- a/embed/serve.go
+++ b/embed/serve.go
@@ -74,8 +74,6 @@ func (sctx *serveCtx) serve(s *etcdserver.EtcdServer, tlscfg *tls.Config, handle
 	servElection := v3election.NewElectionServer(v3c)
 	servLock := v3lock.NewLockServer(v3c)
 
-	defer close(sctx.grpcServerC)
-
 	if sctx.insecure {
 		gs := v3rpc.Server(s, nil)
 		sctx.grpcServerC <- gs
@@ -140,6 +138,7 @@ func (sctx *serveCtx) serve(s *etcdserver.EtcdServer, tlscfg *tls.Config, handle
 		plog.Infof("serving client requests on %s", sctx.l.Addr().String())
 	}
 
+	close(sctx.grpcServerC)
 	return m.Serve()
 }