Bug 438085

Summary:	qdisk master abdication does not work correctly in all cases
Product:	[Retired] Red Hat Cluster Suite	Reporter:	Lon Hohberger <lhh>
Component:	cman	Assignee:	Christine Caulfield <ccaulfie>
Status:	CLOSED ERRATA	QA Contact:	Cluster QE <mspqa-list>
Severity:	low	Docs Contact:
Priority:	low
Version:	4	CC:	cluster-maint, edamato
Target Milestone:	---
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:	RHBA-2008-0799	Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2008-07-25 19:07:06 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description Lon Hohberger 2008-03-18 22:05:18 UTC

+++ This bug was initially created as a clone of Bug #430264 +++

Description of problem:

When qdiskd detects multiple masters, all detecting qdiskd instances are
supposed to abdicate their position and elect a new master.  Unfortunately, a
logic error prevents this from occurring in all cases.  For example, if qdiskd
goes to sleep, is evicted, and still thinks it is master, it will complain:

"A master exists, but it's not me?!"

Steps to Reproduce: Unknown; seen in overnight testing
  
Actual results:  Loop with annoying messages

Expected results: Master abdication + re-election

-- Additional comment from lhh on 2008-01-25 11:45 EST --
Created an attachment (id=292960)
Fix


-- Additional comment from lhh on 2008-02-04 12:19 EST --
One way to cause this is to corrupt the quorum disk while qdiskd is running.

Comment 1 Lon Hohberger 2008-03-18 22:06:42 UTC

Already in git / RHEL4 branch, commit = db6a74a9900257848aa4c07256b77b2d10a7db13

Comment 2 RHEL Program Management 2008-03-18 22:14:40 UTC

This request was evaluated by Red Hat Product Management for inclusion in a Red
Hat Enterprise Linux maintenance release.  Product Management has requested
further review of this request by Red Hat Engineering, for potential
inclusion in a Red Hat Enterprise Linux Update release for currently deployed
products.  This request is not yet committed for inclusion in an Update
release.

Comment 5 errata-xmlrpc 2008-07-25 19:07:06 UTC

An advisory has been issued which should help the problem
described in this bug report. This report is therefore being
closed with a resolution of ERRATA. For more information
on the solution and/or where to find the updated files,
please follow the link below. You may reopen this bug report
if the solution does not work for you.

http://rhn.redhat.com/errata/RHBA-2008-0799.html