From 955c532735acdaf878c58234cb5056a578da7342 Mon Sep 17 00:00:00 2001
From: yangchenliang <yangchenliang@huawei.com>
Date: Tue, 26 Sep 2017 10:05:18 +0800
Subject: [PATCH] Repair (*Broadcaster).run goroutine leak

When execute 'docker swarm init' and 'docker swarm leave -f' on a node
repeatedly, the (*Broadcaster).run goroutine leak.

Signed-off-by: yangchenliang <yangchenliang@huawei.com>
---
 libnetwork/networkdb/networkdb.go | 3 +++
 1 file changed, 3 insertions(+)

diff --git a/libnetwork/networkdb/networkdb.go b/libnetwork/networkdb/networkdb.go
index afdf32e2c2..0a80d8c825 100644
--- a/libnetwork/networkdb/networkdb.go
+++ b/libnetwork/networkdb/networkdb.go
@@ -261,6 +261,9 @@ func (nDB *NetworkDB) Close() {
 	if err := nDB.clusterLeave(); err != nil {
 		logrus.Errorf("Could not close DB %s: %v", nDB.config.NodeName, err)
 	}
+
+	//Avoid (*Broadcaster).run goroutine leak
+	nDB.broadcaster.Close()
 }
 
 // ClusterPeers returns all the gossip cluster peers.