Bug 838802

Summary:	3.1 - Add config option to enable/disable sanlock
Product:	Red Hat Enterprise Linux 6	Reporter:	Andrew Cathrow <acathrow>
Component:	vdsm	Assignee:	Federico Simoncelli <fsimonce>
Status:	CLOSED ERRATA	QA Contact:	Leonid Natapov <lnatapov>
Severity:	urgent	Docs Contact:
Priority:	urgent
Version:	6.4	CC:	abaron, aburden, acathrow, bazulay, chetan, cpelland, hateya, iheim, ilvovsky, jbiddle, rbalakri, ykaul
Target Milestone:	alpha
Target Release:	---
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:	storage
Fixed In Version:	vdsm-4.9.6-24.0	Doc Type:	Bug Fix
Doc Text:	SANLock was introduced in Red Hat Enterprise Virtualization 3.1, but there was no option to control the volume leases mechanism. This change provides a vdsm.conf option to enable control of the volume leases, but it is disabled by default.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2012-12-04 19:02:23 UTC	Type:	Bug
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:
Bug Blocks:	843467

Description Andrew Cathrow 2012-07-10 07:58:40 UTC

Create vdsm.conf options to enable/disable sanlock.
Default should be disable.

Comment 4 Federico Simoncelli 2012-07-12 10:00:43 UTC

A patch has been proposed upstream:

commit 2a0acf123c758ad999b0a81dbfbb9cdde03291a1
Author: Federico Simoncelli <fsimonce>
Date:   Wed Jul 11 13:42:37 2012 +0000

    BZ#838802 Config option to enable/disable volume leases
    
    Signed-off-by: Federico Simoncelli <fsimonce>
    Change-Id: I3950be962f89c934f617752bbf1c79c61d400bda

http://gerrit.ovirt.org/#/c/6188/

Comment 7 Leonid Natapov 2012-07-30 14:17:58 UTC

vdsm-4.9.6-24.0.

Enabling the use_volume_leases generates the following section in the vm's domain xml file:
<lease>
      <lockspace>94e13138-9e52-46be-b50c-4ac0bcec0cf2</lockspace>
      <key>e4854f6c-2b3d-4e71-b339-e2c65c2872d1</key>
      <target path='/dev/94e13138-9e52-46be-b50c-4ac0bcec0cf2/leases' offset='110100480'/>
    </lease>

By default use_volume_leases disbaled.
Disabling the use_volume_leases (use_volume_leases=false) disables it.

Fixed.

Comment 12 errata-xmlrpc 2012-12-04 19:02:23 UTC

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.

http://rhn.redhat.com/errata/RHSA-2012-1508.html