Bug 487806

Summary:	provide better distinction for clustering via openais and clustering via cman/openais
Product:	Red Hat Enterprise MRG	Reporter:	Subhendu Ghosh <sghosh>
Component:	Messaging_Programming_Reference	Assignee:	Alison Young <alyoung>
Status:	CLOSED CURRENTRELEASE	QA Contact:	ecs-bugs
Severity:	medium	Docs Contact:
Priority:	high
Version:	1.1	CC:	alyoung, ghelleks, sdake
Target Milestone:	1.3	Keywords:	Documentation
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2011-03-16 05:24:06 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 Subhendu Ghosh 2009-02-27 22:47:40 UTC

http://www.redhat.com/docs/en-US/Red_Hat_Enterprise_MRG/1.1/html/Messaging_User_Guide/chap-Messaging_User_Guide-Clustering_and_federation.html

This section defines 2 different methods of clustering qpid without sufficient delineation between the two.

Case 1:
qpid + openais configured via openais.conf

Features: active/active broker clusters
          support for redundant ring protocol
          does not support split-brain

Case 2:
qpid + cman configured openais via cluster.conf

Features: HW nodes are clustered using ClusterSuite (from RHEL AP)
          qpid --cluster-cman option required
          openais.conf is not needed (??)
          cluster split-brian is supported

Comment 1 Jonathan Robie 2009-09-23 14:50:11 UTC

Fixed in the 1.2 clustering docs. 

I have not yet verified whether openais.conf is optional when using cman. Email out on that question.

Comment 3 Steven Dake 2010-03-03 08:30:22 UTC

openais.conf is not used when aisexec is started via cman.

Comment 5 Alison Young 2011-03-16 05:24:06 UTC

(In reply to comment #1)
> Fixed in the 1.2 clustering docs. 
> 
> I have not yet verified whether openais.conf is optional when using cman. Email
> out on that question.

Closed as fix already implemented