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Bug 1342933

Summary:	IPtables not updates when one of the masters fails
Product:	OpenShift Container Platform	Reporter:	Alexander Koksharov <akokshar>
Component:	Networking	Assignee:	Ben Bennett <bbennett>
Status:	CLOSED DUPLICATE	QA Contact:	Meng Bo <bmeng>
Severity:	high	Docs Contact:
Priority:	unspecified
Version:	3.1.0	CC:	aos-bugs
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OS:	Unspecified
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Last Closed:	2016-06-06 12:30:02 UTC	Type:	Bug
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Description Alexander Koksharov 2016-06-06 07:13:28 UTC

Description of problem:

Customer run multiple master OSE with proxy-mode set to iptables on nodes.
In case one master become unavailable, pods start failing during name resolution.

It turns out to be a failure to update iptables rules after master node goes down. iptables rule is not removed and some of the DNS requests are still routed to a failed node.
This issue probably affects not only DNS but also other services provided by then master.

Version-Release number of selected component (if applicable):
3.1

How reproducible:


Steps to Reproduce:
1.
start multiple-master OSE
2.
halt one master
3.
check iptables on a node

Actual results:
iptables still have failed master listed

Expected results:
only alive services do have corresponding records in iptables

Additional info:

Comment 1 Ben Bennett 2016-06-06 12:30:02 UTC


*** This bug has been marked as a duplicate of bug 1300028 ***