Bug 1411572

Summary:	Snapshot deletion fails with error reported as "Drive image file could not be found"
Product:	Red Hat Enterprise Virtualization Manager	Reporter:	Ribu Tho <rabraham>
Component:	ovirt-engine	Assignee:	Daniel Erez <derez>
Status:	CLOSED ERRATA	QA Contact:	Kevin Alon Goldblatt <kgoldbla>
Severity:	medium	Docs Contact:
Priority:	medium
Version:	4.0.5	CC:	aefrat, ahino, derez, lsurette, rabraham, ratamir, rbalakri, Rhev-m-bugs, srevivo, tnisan, ykaul, ylavi
Target Milestone:	ovirt-4.2.0	Keywords:	ZStream
Target Release:	4.2.0
Hardware:	x86_64
OS:	Linux
Whiteboard:
Fixed In Version:		Doc Type:	No Doc Update
Doc Text:	undefined	Story Points:	---
Clone Of:
Clones:	1446919 (view as bug list)		Environment:
Last Closed:	2018-05-15 17:40:52 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:	1446919

Description Ribu Tho 2017-01-10 01:41:33 UTC

Description of problem:

Unable to delete a snapshot when one of the disk's which is part of it is deactivated. 

Version-Release number of selected component (if applicable):

ovirt-engine-4.0.5.5-0.1.el7ev.noarch

How reproducible:

Steps to Reproduce:
1. Create 2 new disks for a VM .
2. Create a snapshot with the above 2 disks involved. 
3. Deactivate one of the disk's that is part of the snapshot.
4. Delete the snapshot and it will result in the error below 

engine.log
--------------------

 Engine exception thrown while sending merge command: org.ovirt.engine.core.common.errors.EngineException: EngineException: org.ovirt.      engine.core.vdsbroker.vdsbroker.VDSErrorException: VDSGenericException: VDSErrorException: Failed to MergeVDS, error = Drive image file could not be found, code = 13 (Failed with error imageErr and code 13)

5. The disk that is activated gets removed successfully and the disk or image is marked as illegal.
6. once activated again from the disk's tab it can be removed .

Actual results:

-results in the disk/image being marked as illegal in the snapshot .
- stale snapshot entry in table.

Expected results:

- warning to user indicating that one of the disk is in inactive or deactivated state. 

Additional info:

Comment 1 Yaniv Kaul 2017-01-10 06:26:19 UTC

It'd be great if you could attach relevant engine and vdsm logs.

Comment 4 Tal Nisan 2017-03-06 12:47:50 UTC

If I remember correctly this is the expected behavior, Daniel can you confirm?

Comment 5 Daniel Erez 2017-03-06 13:00:38 UTC

@Ala - is it the excepted behavior with live merge? or perhaps related to bug 1327140 ?

Comment 6 Ala Hino 2017-03-06 13:31:32 UTC

It is the expected behavior though a warning indicating that the snapshot will not be removed the non-active disk will be marked as illegal (in the disks sub-tab in the snapshots tab)

Comment 7 Ribu Tho 2017-03-06 22:25:37 UTC

@Ala,

Currently there is no warning or indication as such and hence wouldn't it be a good idea to have a warning indication or notification for this case. 

Ribu

Comment 10 rhev-integ 2017-04-26 10:50:32 UTC

WARN: Bug status wasn't changed from MODIFIED to ON_QA due to the following reason:

[FOUND NON-ACKED FLAGS: {'rhevm-4.1.z': '?'}]

For more info please contact: rhv-devops

Comment 12 Kevin Alon Goldblatt 2017-07-27 15:08:24 UTC

Verified with the following code:
----------------------------------------------
ovirt-engine-4.2.0-0.0.master.20170723141021.git463826a.el7.centos.noarch
vdsm-4.20.1-218.git1b7671f.el7.centos.x86_64


Verified with the following scenario:
---------------------------------------------
Steps to Reproduce:
1. Create 2 new disks for a VM .
2. Create a snapshot with the above 2 disks involved. 
3. Deactivate one of the disk's that is part of the snapshot.
4. Delete the snapshot >>>>> The following message is displayed:

Are you sure you want to delete snapshot from 2017-07-27, 17:41 with description 'snapped_3'?

Note - the following disks are deactivated and won't be merged (the disks will be marked as illegal in the removed snapshot): vm222_Disk3

Moving to VERIFIED

Comment 15 errata-xmlrpc 2018-05-15 17:40:52 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.

https://access.redhat.com/errata/RHEA-2018:1488

Comment 16 Franta Kust 2019-05-16 13:04:51 UTC

BZ<2>Jira Resync

Comment 17 Avihai 2019-08-25 14:04:45 UTC

Marking as qe_test_coverage '-' as the fix and verification are done only via UI which we do not automate.