From 7023e5d2fbab3bbdd67faf05a388d77ddc71a319 Mon Sep 17 00:00:00 2001
From: fangdingjun <fangdingjun@gmail.com>
Date: Thu, 22 Nov 2018 14:42:27 +0800
Subject: [PATCH] sd/etcdv3: serve the keepalive response channel

read and discard keepalive response,
make etcd library not to complain
fix #799
---
 sd/etcdv3/client.go | 12 ++++++++++++
 1 file changed, 12 insertions(+)

diff --git a/sd/etcdv3/client.go b/sd/etcdv3/client.go
index 1ae37ff12..2c1f49681 100644
--- a/sd/etcdv3/client.go
+++ b/sd/etcdv3/client.go
@@ -204,6 +204,18 @@ func (c *client) Register(s Service) error {
 		return err
 	}
 
+	// discard the keepalive response, make etcd library not to complain
+	// fix bug #799
+	go func() {
+		for {
+			select {
+			case <-c.hbch:
+			case <-c.ctx.Done():
+				return
+			}
+		}
+	}()
+
 	return nil
 }