From c3332b9e26f1f3da8673d6f6191b0655d6dd9d02 Mon Sep 17 00:00:00 2001
From: Yanqiang Miao <miao.yanqiang@zte.com.cn>
Date: Tue, 28 Mar 2017 19:37:56 +0800
Subject: [PATCH] The returned err should be printed

Signed-off-by: Yanqiang Miao <miao.yanqiang@zte.com.cn>
Upstream-commit: 87d0a3ad890ea0d12f5e7b28f34ea835048696bd
Component: engine
---
 components/engine/daemon/discovery/discovery.go | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/components/engine/daemon/discovery/discovery.go b/components/engine/daemon/discovery/discovery.go
index 2103486434..509155cbbd 100644
--- a/components/engine/daemon/discovery/discovery.go
+++ b/components/engine/daemon/discovery/discovery.go
@@ -121,6 +121,8 @@ func (d *daemonDiscoveryReloader) advertiseHeartbeat(address string) {
 	if err := d.initHeartbeat(address); err == nil {
 		ready = true
 		close(d.readyCh)
+	} else {
+		logrus.WithError(err).Debug("First discovery heartbeat failed")
 	}
 
 	for {