Bug 1008338

Summary: When power saving balancing policy is used, vm's still migrate between two hosts.
Product: Red Hat Enterprise Virtualization Manager Reporter: Ondra Machacek <omachace>
Component: ovirt-engineAssignee: Nobody <nobody>
Status: CLOSED NOTABUG QA Contact:
Severity: high Docs Contact:
Priority: unspecified    
Version: 3.3.0CC: acathrow, dfediuck, iheim, lpeer, lsvaty, Rhev-m-bugs, yeylon
Target Milestone: ---Keywords: Triaged
Target Release: 3.3.0   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard: sla
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2013-09-16 14:08:51 UTC Type: Bug
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: SLA RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Attachments:
Description Flags
engine.log none

Description Ondra Machacek 2013-09-16 08:09:02 UTC 
Created attachment 798154 [details]
engine.log

Description of problem:
When power saving balancing policy is used, vm's still migrate between two hosts.

Version-Release number of selected component (if applicable):
is13

How reproducible:
always

Steps to Reproduce:
1. Create cluster with 3 hosts and power saving policy (High 75%, low 20%)
2. Load hosts:
   host1(hsm1): 25% (1 running vm)
   host2(hsm2): 50% (2 running vms)
   host3(spm):  75% (3 running vms)

Actual results:
one vm still migrate between host2 and host3.

Expected results:
Stabilize, no vm won't migrate.

Additional info:
Comment 1 Doron Fediuck 2013-09-16 14:08:51 UTC 
(In reply to Ondra Machacek from comment #0)
> Created attachment 798154 [details]
> engine.log
> 
> Description of problem:
> When power saving balancing policy is used, vm's still migrate between two
> hosts.
> 
> Version-Release number of selected component (if applicable):
> is13
> 
> How reproducible:
> always
> 
> Steps to Reproduce:
> 1. Create cluster with 3 hosts and power saving policy (High 75%, low 20%)
> 2. Load hosts:
>    host1(hsm1): 25% (1 running vm)
>    host2(hsm2): 50% (2 running vms)
>    host3(spm):  75% (3 running vms)
> 
> Actual results:
> one vm still migrate between host2 and host3.
> 
> Expected results:
> Stabilize, no vm won't migrate.
> 
> Additional info:

Ondra,
This is working by design.
On power saving VMs migrate to the busy hosts to make other hosts free to shut down.

Please verify and reopen as needed.