Fix
=== RUN TestEmbedEtcd
==================
WARNING: DATA RACE
Write at 0x000001df86d0 by goroutine 711:
github.com/coreos/etcd/embed.(*Config).setupLogging.func1()
/go/src/github.com/coreos/etcd/vendor/google.golang.org/grpc/grpclog/loggerv2.go:68 +0x16c
sync.(*Once).Do()
/usr/local/go/src/sync/once.go:44 +0xe1
github.com/coreos/etcd/embed.(*Config).setupLogging()
in gRPC proxy tests.
Signed-off-by: Gyuho Lee <gyuhox@gmail.com>
grpc 1.3 uses MaxMsgSize() to limit received message size. However, grpc 1.4 introduces a 4mb default limit on send message size. In etcd, server shouldn't be limit size of message that it can be sent. Hence, set maximum size of send message using MaxSendMsgSize().
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.
