Bug 1251435 - IO Threads breaks the live snapshot creations
Summary: IO Threads breaks the live snapshot creations
Keywords:
Status: CLOSED INSUFFICIENT_DATA
Alias: None
Product: vdsm
Classification: oVirt
Component: General
Version: 4.16.0
Hardware: x86_64
OS: Linux
unspecified
medium
Target Milestone: ovirt-3.6.1
: 4.17.14
Assignee: Fred Rolland
QA Contact: Aharon Canan
URL:
Whiteboard: storage
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2015-08-07 09:46 UTC by enax
Modified: 2016-03-10 15:10 UTC (History)
15 users (show)

Fixed In Version:
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2015-11-16 12:36:48 UTC
oVirt Team: Storage
Embargoed:
frolland: needinfo-
frolland: needinfo-
amureini: ovirt-3.6.z?
amureini: ovirt-4.0.0?
rule-engine: planning_ack?
rule-engine: devel_ack?
rule-engine: testing_ack?


Attachments (Terms of Use)
logs (33.36 KB, application/x-gzip)
2015-08-07 09:46 UTC, enax
no flags Details
logs2 (25.65 KB, application/x-gzip)
2015-08-10 09:07 UTC, enax
no flags Details

Description enax 2015-08-07 09:46:52 UTC
Created attachment 1060321 [details]
logs

Description of problem:
If you try to make live snap with enabled IO Threads, the operation will fail.


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


How reproducible:


Steps to Reproduce:
1. Create a vm from template
2. On resource allocation tab enable the IO Threads
3. Start vm
4. Create snap

Actual results:
Failed to create live snapshot '2' for VM 'enaxtest7'. VM restart is recommended. Note that using the created snapshot might cause data inconsistency.

Expected results:
Snapshot '2' creation for VM 'enaxtest7' has been completed.

Additional info:
If need more information, just write me.

Comment 1 Allon Mureinik 2015-08-09 09:08:13 UTC
enax - the failure is seen in the engine log circa 2015-08-07 05:05, but the VDSM log only starts on 2015-08-07 09:05, and I cannot see the error there. Could you please upload the VDSM that contains the error?

Comment 2 Allon Mureinik 2015-08-09 09:09:02 UTC
Michal - I'm not quite sure if this is in Storage or Virt's domain. Taking to Storage for initial investigation, but your guys should probably be in the loop too.

Comment 3 enax 2015-08-10 09:07:20 UTC
Created attachment 1060983 [details]
logs2

Comment 4 enax 2015-08-10 09:08:50 UTC
Ahh sorry, wrong timezone settings on node.

Comment 5 Michal Skrivanek 2015-08-10 11:23:23 UTC
(In reply to Allon Mureinik from comment #2)
> Michal - I'm not quite sure if this is in Storage or Virt's domain. Taking
> to Storage for initial investigation, but your guys should probably be in
> the loop too.

I only see Thread-123613::ERROR::2015-08-10 11:00:42,668::vm::3024::virt.vm::(snapshot) vmId=`97018914-a0e7-43b6-a4e1-73ee2d88007f`::The base volume doesn't exist: {'device': 'disk', 'domainID': u'bda691fe-f8c4-42cd-9
727-cb709d72b2f5', 'volumeID': u'db09bb38-331d-49aa-96e6-a7c9b9e6589f', 'imageID': u'28ca3b3f-ebc3-4643-ac81-58231421c032'}

Not sure if iothreads are really the difference here

Comment 6 Red Hat Bugzilla Rules Engine 2015-10-19 10:50:05 UTC
Target release should be placed once a package build is known to fix a issue. Since this bug is not modified, the target version has been reset. Please use target milestone to plan a fix for a oVirt release.

Comment 7 Sandro Bonazzola 2015-10-26 12:42:01 UTC
this is an automated message. oVirt 3.6.0 RC3 has been released and GA is targeted to next week, Nov 4th 2015.
Please review this bug and if not a blocker, please postpone to a later release.
All bugs not postponed on GA release will be automatically re-targeted to

- 3.6.1 if severity >= high
- 4.0 if severity < high

Comment 8 Fred Rolland 2015-10-28 09:20:36 UTC
Hi enax,

I could not reproduce this issue on latest 3.6.
Are there some additional steps other than the ones mentioned ?

Is the problem still happening to you ?

Thanks

Comment 9 Red Hat Bugzilla Rules Engine 2015-10-28 13:12:42 UTC
This bug is not marked for z-stream, yet the milestone is for a z-stream version, therefore the milestone has been reset.
Please set the correct milestone or add the z-stream flag.

Comment 10 Yaniv Lavi 2015-11-16 12:36:48 UTC
Please reopen this issue with the needed info. We require the info to resolve the issue. Thanks!


Note You need to log in before you can comment on or make changes to this bug.