Bug 497578

Summary:	RHEL5 cmirror tracker: RFE - allow log converts of inactive cmirrors
Product:	Red Hat Enterprise Linux 5	Reporter:	Corey Marthaler <cmarthal>
Component:	cmirror	Assignee:	Jonathan Earl Brassow <jbrassow>
Status:	CLOSED WONTFIX	QA Contact:	Cluster QE <mspqa-list>
Severity:	low	Docs Contact:
Priority:	low
Version:	5.3	CC:	agk, ccaulfie, dwysocha, heinzm, iannis
Target Milestone:	rc
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2014-11-12 22:54:59 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 Corey Marthaler 2009-04-24 20:09:15 UTC

Description of problem:
This is the RHEL5 cmirror version of bug 192865.

[root@taft-01 ~]# lvchange -an TAFT/cmirror

[root@taft-01 ~]# lvconvert -m 1 --corelog TAFT/cmirror
  Unable to convert the log of inactive cluster mirror cmirror

Version-Release number of selected component (if applicable):
lvm2-2.02.40-6.el5
lvm2-cluster-2.02.40-7.el5

Comment 1 Jonathan Earl Brassow 2009-10-14 14:56:54 UTC

The reason for this is that any information on the sync state of the mirror will be lost...  Seems like a pretty silly thing to do.  I might be willing to do it if the user is also asked if they want to procede.

Also, the given message seems fouled up and needs to be fixed.

Comment 2 Jonathan Earl Brassow 2009-10-14 14:57:38 UTC

I've changed the message in the upstream code to read:
  Unable to convert the log of an inactive cluster mirror, cmirror

Comment 3 Jonathan Earl Brassow 2009-10-14 15:02:30 UTC

Seems this works on single machine mirrors:

[root@bp-01 ~]# lvconvert --corelog vg/lv
Full resync required to convert inactive mirror vg-lv to core log. Proceed? [y/n]: y
  Logical volume lv converted.

So, this additional check may be there for a good reason...  Not high enough priority for me to guarantee 5.5.

Comment 5 Jonathan Earl Brassow 2010-01-26 21:03:06 UTC

This check may be in place to guard against converting while another machine has the mirror active.  The solution may require acquiring the a lock on the mirror exclusively to perform the action.  I'm not going to change/enable this in 5.5.