Bug 194131

Summary:	cluster mirror copy status can give false (0.00) percent
Product:	[Retired] Red Hat Cluster Suite	Reporter:	Corey Marthaler <cmarthal>
Component:	cmirror	Assignee:	Jonathan Earl Brassow <jbrassow>
Status:	CLOSED CURRENTRELEASE	QA Contact:	Cluster QE <mspqa-list>
Severity:	high	Docs Contact:
Priority:	high
Version:	4	CC:	agk, cfeist, dwysocha, mbroz
Target Milestone:	---
Target Release:	---
Hardware:	All
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2008-08-05 21:31:25 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 2006-06-05 22:05:52 UTC

Description of problem:
I was monitoring a mirror's copy percent inorder to test another bug's fix, and
saw this...

[root@taft-03 ~]# lvs
  LV          VG       Attr   LSize   Origin Snap%  Move Log              Copy%
  coreymirror mirror_1 mwi-a- 652.00M                    coreymirror_mlog  36.81
[root@taft-03 ~]# lvs
  LV          VG       Attr   LSize   Origin Snap%  Move Log              Copy%
  coreymirror mirror_1 mwi-a- 652.00M                    coreymirror_mlog   0.00
[root@taft-03 ~]# lvs
  LV          VG       Attr   LSize   Origin Snap%  Move Log              Copy%
  coreymirror mirror_1 mwi-a- 652.00M                    coreymirror_mlog  84.05
[root@taft-03 ~]# lvs
  LV          VG       Attr   LSize   Origin Snap%  Move Log              Copy%
  coreymirror mirror_1 mwi-a- 652.00M                    coreymirror_mlog  94.48
[root@taft-03 ~]# lvs
  LV          VG       Attr   LSize   Origin Snap%  Move Log              Copy%
  coreymirror mirror_1 mwi-a- 652.00M                    coreymirror_mlog 100.00

How reproducible:
I'll try and reproduce and grab more info...

Comment 2 Jonathan Earl Brassow 2006-07-06 04:00:13 UTC

is this really a blocker?  Have you been able to reproduce it?

Comment 4 Jonathan Earl Brassow 2006-10-24 21:06:54 UTC

I've added retry to the client-side query to try to avoid communication problems
when retrieving the sync %'age.  This doesn't eliminate the problem, but should
make it much harder to reproduce.

Comment 5 Corey Marthaler 2006-11-21 23:58:47 UTC

Have not been able to reproduce this issue with the latest builds, marking verified.

[root@link-08 ~]# rpm -qa | grep lvm2
lvm2-cluster-debuginfo-2.02.06-7.0.RHEL4
lvm2-2.02.15-3
lvm2-cluster-2.02.15-3
[root@link-08 ~]# rpm -qa | grep cmirror
cmirror-kernel-debuginfo-2.6.9-13.0
cmirror-kernel-smp-2.6.9-15.5
cmirror-kernel-largesmp-2.6.9-13.0
cmirror-kernel-2.6.9-13.0
cmirror-1.0.1-0
cmirror-debuginfo-1.0.1-0

Comment 6 Chris Feist 2008-08-05 21:31:25 UTC

Closing as this has been fixed in the current (4.7) release.