Bug 1445194 – [3.4] Installer fails to add/check iptables rule due to lock on xtables

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Bug 1445194 - [3.4] Installer fails to add/check iptables rule due to lock on xtables

Summary:	[3.4] Installer fails to add/check iptables rule due to lock on xtables

Status:	CLOSED ERRATA

Aliases:	None

Product:	OpenShift Container Platform
Classification:	Red Hat
Component:	Installer (Show other bugs)
Sub Component:
Version:	3.4.0
Hardware:	x86_64 Linux

Priority	medium Severity medium
Target Milestone:	---
Target Release:	3.4.z
Assigned To:	Scott Dodson
QA Contact:	Wenkai Shi
Docs Contact:

URL:
Whiteboard:
Keywords:

Depends On:	1415800
Blocks:	1445282
	Show dependency tree / graph

Reported:	2017-04-25 04:46 EDT by Paul Dwyer
Modified:	2017-05-17 13:40 EDT (History)
CC List:	3 users (show)

See Also:
Fixed In Version:
Doc Type:	Bug Fix
Doc Text:	Previously the installer may have failed to add iptables rules if other iptables rules were being updated at the same time. Now the installer waits to obtain a lock when updating iptables rules ensuring that rules are properly created.
Story Points:	---
Clone Of:
Clones:	1445282 (view as bug list)
Environment:
Last Closed:	2017-05-17 13:40:23 EDT
Type:	Bug
Regression:	---
Mount Type:	---
Documentation:	---
CRM:
Verified Versions:
Category:	---
oVirt Team:	---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---

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External Trackers
Tracker	ID	Priority	Status	Summary	Last Updated
Red Hat Product Errata	RHSA-2017:1244	normal	SHIPPED_LIVE	Important: ansible and openshift-ansible security and bug fix update	2017-05-25 17:43:49 EDT

Groups: None (edit)

Description Paul Dwyer 2017-04-25 04:46:09 EDT

Description of problem:
Backport fix for bz1415800 to Openshift Container Platform 3.4

Version-Release number of selected component (if applicable):
OSCP3.4

Requesting backport of the change to 3.4 in the installer so the installer waits to obtain a lock when updating iptables rules ensuring that rules are properly created

I have not found any existing bugzilla to get this change backported into 3.4

Comment 2 Scott Dodson 2017-04-25 08:25:59 EDT

https://github.com/openshift/openshift-ansible/pull/3996

Comment 4 Wenkai Shi 2017-05-01 23:32:16 EDT

Verified with version openshift-ansible-3.4.80-1.git.0.4eee9b7.el7.noarch. During installation, run a while loop of iptables command on hosts, installer will be slow down at "TASK [os_firewall : Add iptables allow rules]" step, once stop the while loop, installer continue with normal speed.

[root@master ~]# while true; do iptables -nL; done
...

[root@ansible ~]# ansible-playbook -i hosts -v /usr/share/ansible/openshift-ansible/playbooks/byo/config.yml
...
TASK [os_firewall : Add iptables allow rules] **********************************
...
(slow down here during the "while loop" alive)
...

Comment 6 errata-xmlrpc 2017-05-17 13:40:23 EDT

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

https://access.redhat.com/errata/RHSA-2017:1244

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