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Bug 1093010

Summary:	Auto generated snapshot during the Live-Storage Migration is unable to merge after shutdown of the VM.
Product:	Red Hat Enterprise Virtualization Manager	Reporter:	Udayendu Sekhar Kar <ukar>
Component:	ovirt-engine	Assignee:	Federico Simoncelli <fsimonce>
Status:	CLOSED NOTABUG	QA Contact:	Aharon Canan <acanan>
Severity:	urgent	Docs Contact:
Priority:	urgent
Version:	3.4.0	CC:	acathrow, amureini, gklein, iheim, lpeer, Rhev-m-bugs, rpai, yeylon
Target Milestone:	---
Target Release:	3.4.0
Hardware:	x86_64
OS:	Linux
Whiteboard:	storage
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2014-04-30 16:22:58 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:	1072347

Description Udayendu Sekhar Kar 2014-04-30 12:14:51 UTC

Description of problem:
After VM shutdown, Auto-generated snapshot  during  Live Storage Migration is unable to merge and still there in the snapshot tab. But as per the below link it should merge automatically.

  http://www.ovirt.org/Features/Design/StorageLiveMigration#Pre-Copy_Execution_Diagrams_and_Description

Version-Release number of selected component (if applicable):
rhevm-3.4 beta

How reproducible:
100%

Steps to Reproduce:
1. Create a VM and do the live migration of the disk.
2. Then shutdown the VM and start it
3. Still the autogenerated snapshot during the time of live migration will be there which should not be as per the above link.

Actual results:
After VM shutdown the auto generated snapshot during LSM is not going to merge.

Expected results:
After first vm shutdown it should merge automatically.

Additional info:

Comment 1 Allon Mureinik 2014-04-30 16:22:58 UTC

Snapshots do not get automatically merged, by design. The diagram referenced in the link shows that when the execution ends, the snapshot will remain.

Once live merge is implemented, we should consider merging this snapshot once the migration is done, but it remains to be seen if this would be supported.