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Bug 1561052

Summary:	The Active VM snapshots table entry does not exist for a specific VM
Product:	Red Hat Enterprise Virtualization Manager	Reporter:	Gordon Watson <gwatson>
Component:	ovirt-engine	Assignee:	Benny Zlotnik <bzlotnik>
Status:	CLOSED ERRATA	QA Contact:	Kevin Alon Goldblatt <kgoldbla>
Severity:	high	Docs Contact:
Priority:	unspecified
Version:	4.1.8	CC:	bzlotnik, ebenahar, jortialc, lsurette, lveyde, Rhev-m-bugs, srevivo, tnisan, ybenshim
Target Milestone:	ovirt-4.3.0	Keywords:	ZStream
Target Release:	4.3.0
Hardware:	Unspecified
OS:	Linux
Whiteboard:
Fixed In Version:	ovirt-engine-4.3.0_alpha	Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:
Clones:	1584993 (view as bug list)		Environment:
Last Closed:	2019-05-08 12:37:22 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:	1584993

Description Gordon Watson 2018-03-27 14:20:28 UTC

Description of problem:

The 'Active VM' snapshot does not exist in the snapshots table in the database for a specific VM. The uuid does exist however in the 'vm_snapshot_id' fields of the active images for each disk of that VM.

A volume creation error occurred at the time when a snapshot was taken in which this uuid was generated as the Active VM snapshot id.


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

RHV 4.1.8
RHEL .4 hosts;
  vdsm-4.19.45-1.el7


How reproducible:

Not.


Steps to Reproduce:
1.
2.
3.

Actual results:



Expected results:


Additional info:

Comment 7 Elad 2018-08-21 12:36:11 UTC

Verify according to https://bugzilla.redhat.com/show_bug.cgi?id=1584993#c20

Comment 9 Kevin Alon Goldblatt 2018-10-17 13:16:53 UTC

Verified with the following code:
----------------------------------------
ovirt-engine-4.3.0-0.0.master.20181012165724.gitd25f971.el7.noarch
vdsm-4.30.0-640.git6fd8327.el7.x86_64

Verified with the following scenario:
----------------------------------------
1. Create VM with disk
2. Block access to storage from host
3. Create snapshot - fails to create snapshot and the Active snapshot is still in tact
4. Unblock the access to the storage domain from the host
5. Create a new snapshot now >>>>> Works fine

Comment 12 errata-xmlrpc 2019-05-08 12:37:22 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-2019:1085