From d35f6647bcc49553ba3d6a22fa7a2a8b357a6de8 Mon Sep 17 00:00:00 2001
From: lzhfromustc <43191155+lzhfromustc@users.noreply.github.com>
Date: Mon, 8 Jul 2019 14:24:52 -0700
Subject: [PATCH] Use newbe instead of s.be to avoid potential race

`s.cluster.SetBackend(s.be)` is not in critical section. Using `newbe` instead of `s.be` can avoid potential data race.
---
 etcdserver/server.go | 2 +-
 1 file changed, 1 insertion(+), 1 deletion(-)

diff --git a/etcdserver/server.go b/etcdserver/server.go
index 1e1841bce..236696e81 100644
--- a/etcdserver/server.go
+++ b/etcdserver/server.go
@@ -1291,7 +1291,7 @@ func (s *EtcdServer) applySnapshot(ep *etcdProgress, apply *apply) {
 		plog.Info("finished recovering store v2")
 	}
 
-	s.cluster.SetBackend(s.be)
+	s.cluster.SetBackend(newbe)
 
 	if lg != nil {
 		lg.Info("restoring cluster configuration")