From 744abc2690a551f1e76e4e12690754b322f383de Mon Sep 17 00:00:00 2001
From: Chris Lu <chris.lu@gmail.com>
Date: Sat, 9 Feb 2019 12:51:14 -0800
Subject: [PATCH] log raft state changes

---
 weed/server/master_server.go | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/weed/server/master_server.go b/weed/server/master_server.go
index f22925e56..492bb76e9 100644
--- a/weed/server/master_server.go
+++ b/weed/server/master_server.go
@@ -98,6 +98,9 @@ func (ms *MasterServer) SetRaftServer(raftServer *RaftServer) {
 			glog.V(0).Infoln("[", ms.Topo.RaftServer.Name(), "]", ms.Topo.RaftServer.Leader(), "becomes leader.")
 		}
 	})
+	ms.Topo.RaftServer.AddEventListener(raft.StateChangeEventType, func(e raft.Event) {
+		glog.V(0).Infof("state change: %+v", e)
+	})
 	if ms.Topo.IsLeader() {
 		glog.V(0).Infoln("[", ms.Topo.RaftServer.Name(), "]", "I am the leader!")
 	} else {