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Bug 1151827

Summary: VM cpu hot plug succeed, though it exceeds Quota cpu limit
Product: Red Hat Enterprise Virtualization Manager Reporter: Ilanit Stein <istein>
Component: ovirt-engineAssignee: Omer Frenkel <ofrenkel>
Status: CLOSED CURRENTRELEASE QA Contact: Ilanit Stein <istein>
Severity: high Docs Contact:
Priority: high    
Version: 3.5.0CC: dfediuck, ecohen, eedri, gklein, iheim, lpeer, lsurette, mavital, michal.skrivanek, ofrenkel, rbalakri, Rhev-m-bugs, sbonazzo, scohen, yeylon
Target Milestone: ---Keywords: Regression
Target Release: 3.5.0   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard: virt
Fixed In Version: org.ovirt.engine-root-3.5.0-15 Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2015-02-17 08:26:11 UTC Type: Bug
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Bug Depends On:    
Bug Blocks: 1073943, 1147536, 1164308, 1164311    

Description Ilanit Stein 2014-10-12 12:12:25 UTC 
Description of problem:
When setting quota to 1 cpu limit. VM with 1 cpu - cpu hot plug to or to 3, succeed!, though it should have failed, on quota cpu limit. 

Version-Release number of selected component (if applicable):
vt5

How reproducible:
100%

Additional info:
There was same bug, for 3.4, that was verified: 
https://bugzilla.redhat.com/https://bugzilla.redhat.com/1083177

Expected results:
User is violating the quota, the action should not be permitted.
Comment 2 Gilad Chaplik 2014-10-13 10:29:26 UTC 
hotSetCpu command numOfSockets parameter is passed with no change.

Moving to virt.
Comment 3 Sandro Bonazzola 2014-10-14 12:59:25 UTC 
Shouldn't this be in modified since all patches have been merged?
Comment 4 Omer Frenkel 2014-10-14 13:03:27 UTC 
yes it was merged just now
Comment 5 Ilanit Stein 2014-10-19 11:59:44 UTC 
Verified on vt6.
Now cpu host plug is working OK. Following UI cpu socket hot plug, A rhel6.5 guest 'lscpu' show indeed the number of cpus is updated.
Comment 6 Ilanit Stein 2014-10-19 13:05:44 UTC 
Correction: This bug is NOT verified on vt6:

The cpu hot-plug is working on vt6, only in the situation where there is NO quota defined in the data center.
If adding a quota, of 1 vCPU, this bug still exist in vt6.
Comment 7 Ilanit Stein 2014-10-19 13:18:43 UTC 
Eyal,

Would you please check if this fix is indeed included in vt6?

Thank you,
Ilanit.
Comment 8 Eyal Edri 2014-10-19 13:28:21 UTC 
it's in:
https://gerrit.eng.lab.tlv.redhat.com/gitweb?p=ovirt-engine.git;a=shortlog;h=refs/tags/ovirt-engine-3.5.0_vt6

http://gerrit.ovirt.org/#/c/34084/
Comment 9 Ilanit Stein 2014-10-19 13:38:01 UTC 
My mistake, moving to verified.

When there is no quota cpu hot plug work ok (guest updated).
When there is a quota (num of cpu limit) the cpu host plug work, and blocked, when quota is exceeded.
Comment 10 Omer Frenkel 2015-02-17 08:26:11 UTC 
RHEV-M 3.5.0 has been released