Bug 1377849

Summary:	LV is not deactivated after live merge when the VM is running on HSM
Product:	[oVirt] vdsm	Reporter:	Ala Hino <ahino>
Component:	Core	Assignee:	Ala Hino <ahino>
Status:	CLOSED CURRENTRELEASE	QA Contact:	Kevin Alon Goldblatt <kgoldbla>
Severity:	high	Docs Contact:
Priority:	unspecified
Version:	4.17.11	CC:	amureini, bugs, nsoffer, ratamir, tnisan
Target Milestone:	ovirt-4.0.6	Flags:	tnisan: ovirt-4.0.z? rule-engine: planning_ack? rule-engine: devel_ack+ rule-engine: testing_ack+
Target Release:	4.18.16
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2017-01-18 07:25:56 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:

Description Ala Hino 2016-09-20 18:59:21 UTC

Description of problem:
After live merge of a snapshot of a VM running on HSM, the LV is not deactivated and the device is not removed from /dev/sdUUID

How reproducible:
100%

Steps to Reproduce:
1. create a VM
2. add a block disk if any size
3. run the VM on HSM
4. create a snapshot
4. delete the snapshot while the VM is running

Actual results:
LV isn't deactivated and device is not removed from /dev/sdUUID

Expected results:
LV to be deactivated and device to be removed

Additional info:
Useful commands to verify the issue:
* dmsetup table | grep volUUID
* ls -al /dev/sdUUID/
In both commands output the volume should not present.

Comment 1 Kevin Alon Goldblatt 2016-11-20 15:51:10 UTC

Verified with the following code:
-------------------------------------------
rhevm-4.0.6-0.1.el7ev.noarch
vdsm-4.18.999-759.git435a852.el7.centos.x86_64

Verified with the following scenario:
-------------------------------------------
Description of problem:
After live merge of a snapshot of a VM running on HSM, the LV is not deactivated and the device is not removed from /dev/sdUUID

How reproducible:
100%

Steps to Reproduce:
1. create a VM
2. add a block disk if any size
3. run the VM on HSM
4. create a snapshot
4. delete the snapshot while the VM is running

Actual results:
LV IS NOW DEACTIVATED and device IS NOW removed from /dev/sdUUID

* dmsetup table | grep volUUID - RETURNED NOTHING
* ls -al /dev/sdUUID/ - NO LONGER DISPLAYS the device
In both commands output the volume IS NOT present.


MOVING TO VERIFIED!