Bug 1109925

Summary:	Live Merge: Expose capability in getVdsCaps API
Product:	[Retired] oVirt	Reporter:	Adam Litke <alitke>
Component:	vdsm	Assignee:	Adam Litke <alitke>
Status:	CLOSED CURRENTRELEASE	QA Contact:	Kevin Alon Goldblatt <kgoldbla>
Severity:	high	Docs Contact:
Priority:	unspecified
Version:	3.5	CC:	acanan, alitke, amureini, bazulay, bugs, fsimonce, gklein, iheim, mgoldboi, rbalakri, scohen, yeylon
Target Milestone:	---
Target Release:	3.5.0
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:	storage
Fixed In Version:	ovirt-engine-3.5.0_beta1	Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2014-10-17 12:31:20 UTC	Type:	Bug
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	Storage	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:
Bug Blocks:	1124099

Description Adam Litke 2014-06-16 15:53:28 UTC

oVirt engine would like to know whether the Live Merge feature is supported by a particular host so that it can decide whether to offer the option to users in the GUI.  Add a capability flag to the getVdsCaps API which, when present, will communicate the presence of the feature.

Comment 1 Adam Litke 2014-06-16 18:18:56 UTC

implementation in progress

Comment 2 Allon Mureinik 2014-07-17 06:53:45 UTC

Adam, can this be moved to ON_QA, or are we waiting for a corresponding engine patch?

Comment 3 Adam Litke 2014-07-17 13:11:19 UTC

Still waiting on the patch from Greg to be merged on the engine side.

Comment 4 Allon Mureinik 2014-07-29 05:48:02 UTC

Since we're tracking the engine patch on bug 1124099, lets move forward with this to allow early engagement in the QA.

Adam - can you please add some info for the QA on how to test this using vdsClinet's getCaps?

Comment 5 Adam Litke 2014-07-29 12:52:04 UTC

Steps to verify this in vdsm:

1. On stock Fedora 20 system, install the vdsm you would like to test
2. On the host execute: vdsClient 0 getVdsCaps | grep liveMerge
3. Today on stock Fedora 20 you will see:
   liveMerge = 'false'
4. Download the following files into an empty directory on your vdsm host
   http://files.pipo.sk/qemu+libvirt-gluster-block-jobs-v6.tar
   http://files.pipo.sk/libvirt-python-fixed.tar
5. Extract qemu+libvirt-gluster-block-jobs-v6.tar
6. Extract libvirt-python-fixed.tar (This file will overwrite a few rpms from the first tarball)
7. Install all extracted RPMs: yum upgrade *.rpm
8. Restart libvirt: service libvirtd restart
9. Restart vdsm: service vdsmd restart
10. vdsClient 0 getVdsCaps | grep liveMerge
11. Verify that you see:
    liveMerge = 'true'

Comment 6 Sandro Bonazzola 2014-10-17 12:31:20 UTC

oVirt 3.5 has been released and should include the fix for this issue.