From 89e70760d77d2117a44fa2d1c8fd09a2615efc34 Mon Sep 17 00:00:00 2001
From: m1093782566 <dujun5@huawei.com>
Date: Tue, 19 Dec 2017 16:05:32 +0800
Subject: [PATCH] log error when error occur in CleanupLeftovers()

---
 pkg/proxy/ipvs/proxier.go | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/pkg/proxy/ipvs/proxier.go b/pkg/proxy/ipvs/proxier.go
index 104a5e9a353..9a3725f6f3f 100644
--- a/pkg/proxy/ipvs/proxier.go
+++ b/pkg/proxy/ipvs/proxier.go
@@ -806,6 +806,7 @@ func CleanupLeftovers(ipvs utilipvs.Interface, ipt utiliptables.Interface, ipset
 		encounteredError = false
 		err := ipvs.Flush()
 		if err != nil {
+			glog.Errorf("Error flushing IPVS rules: %v", err)
 			encounteredError = true
 		}
 	}
@@ -813,6 +814,7 @@ func CleanupLeftovers(ipvs utilipvs.Interface, ipt utiliptables.Interface, ipset
 	nl := NewNetLinkHandle()
 	err := nl.DeleteDummyDevice(DefaultDummyDevice)
 	if err != nil {
+		glog.Errorf("Error deleting dummy device %s created by IPVS proxier: %v", DefaultDummyDevice, err)
 		encounteredError = true
 	}
 	// Clear iptables created by ipvs Proxier.