From bbf15b3d09ac05ff2cfd58b53313ec612e1a9b07 Mon Sep 17 00:00:00 2001
From: zhangzheng <zzgigi2003@163.com>
Date: Thu, 25 Oct 2018 18:27:32 +0800
Subject: [PATCH] tm-monitor: update health after we added / removed node
 (#2694)

Refs #2693
---
 tools/tm-monitor/monitor/network.go | 8 ++++++++
 1 file changed, 8 insertions(+)

diff --git a/tools/tm-monitor/monitor/network.go b/tools/tm-monitor/monitor/network.go
index 9b147c06b..bb5dd0baa 100644
--- a/tools/tm-monitor/monitor/network.go
+++ b/tools/tm-monitor/monitor/network.go
@@ -140,14 +140,22 @@ func (n *Network) NodeIsOnline(name string) {
 
 // NewNode is called when the new node is added to the monitor.
 func (n *Network) NewNode(name string) {
+	n.mu.Lock()
+	defer n.mu.Unlock()
+
 	n.NumNodesMonitored++
 	n.NumNodesMonitoredOnline++
+	n.updateHealth()
 }
 
 // NodeDeleted is called when the node is deleted from under the monitor.
 func (n *Network) NodeDeleted(name string) {
+	n.mu.Lock()
+	defer n.mu.Unlock()
+
 	n.NumNodesMonitored--
 	n.NumNodesMonitoredOnline--
+	n.updateHealth()
 }
 
 func (n *Network) updateHealth() {