diff --git a/src/server/cluster/Cluster.go b/src/server/cluster/Cluster.go
index 71835dd4..0a9e5efa 100644
--- a/src/server/cluster/Cluster.go
+++ b/src/server/cluster/Cluster.go
@@ -34,7 +34,7 @@ func Init() {
 		server.MaxConnNum = int(math.MaxInt32)
 		server.PendingWriteNum = 1 << 14
 		server.LenMsgLen = 4
-		server.MaxMsgLen = 4096
+		server.MaxMsgLen = 1 << 16
 		server.NewAgent = newServerAgent
 		server.Start()
 	}