Bug 1399609

Summary:	[RFE] optimization in choice of target host for migration
Product:	[oVirt] ovirt-engine	Reporter:	Gianluca Cecchi <gianluca.cecchi>
Component:	BLL.HostedEngine	Assignee:	Phillip Bailey <phbailey>
Status:	CLOSED CURRENTRELEASE	QA Contact:	Artyom <alukiano>
Severity:	medium	Docs Contact:
Priority:	medium
Version:	4.0.5	CC:	bugs, dfediuck, mavital, mgoldboi, msivak
Target Milestone:	ovirt-4.2.0	Keywords:	FutureFeature, Triaged
Target Release:	4.2.0	Flags:	rule-engine: ovirt-4.2+ alukiano: testing_plan_complete+ mgoldboi: planning_ack+ dfediuck: devel_ack+ mavital: testing_ack+
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:		Doc Type:	Enhancement
Doc Text:	When migrating virtual machines, the host selection drop-down list filters the results to display only appropriate destination hosts.	Story Points:	---
Clone Of:		Environment:
Last Closed:	2017-12-20 10:55:01 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:
Embargoed:

Description Gianluca Cecchi 2016-11-29 12:16:05 UTC

Description of problem:
Scenario: you want to migrate Hosted Engine VM from within the webadmin gui.
It would be nice to pre-filter the proposed drop down box when you have to choose the target host where migrate the hosted engine...
So that if there are no hosts available you will be given a related message without choice at all and if there is a subset of eligible hosts inside the cluster (because not all are configured as Hosted Engine enabled in general), you will be proposed only to choose one of them and not all the hosts inside the cluster.

Version-Release number of selected component (if applicable):
4.0.5

How reproducible:
always

Steps to Reproduce:
1. 3 hosts with only host1 and host2 configured as Hosted Engine.
Hosted engine running on host1.
2. from the gui select HE and "migrate"; don't choose the default option "select host automatically", but choose "select destination host" option: you are proposed host2 and host3.
3. Choose host3, that is NOT configured as hosted engine

Actual results:
You get this error
https://drive.google.com/file/d/0BwoPbcrMv8mvY3pURVRkX0p4OW8/view?usp=sharing

Expected results:
The drop down list could be pre-filtered so that one cannot choose a host that is already known would give an error message.

Additional info:
In case of no further hosts enabled for Hosted Engine, apart where is already running, the user will get a window telling that he/she cannot migrate the HE VM and that it is advisable to add more hosts configured as Hosted Engine to guarantee HA

Comment 1 Doron Fediuck 2016-11-30 09:24:57 UTC

Thanks for reporting.
We will filter out all non-HE hosts.

Please note that regardless there may be cases where migration may fail
for various reasons. However this will make sure only relevant hosts will
be displayed.

Comment 2 Gianluca Cecchi 2017-02-21 11:40:24 UTC

It seems fine to me. Thanks

Comment 5 Gianluca Cecchi 2017-11-09 15:43:24 UTC

Great!

Comment 6 Artyom 2017-12-13 09:16:21 UTC

Verified on rhvm-4.2.0.2-0.1.el7.noarch accordingly to the test plan.

Comment 7 Sandro Bonazzola 2017-12-20 10:55:01 UTC

This bugzilla is included in oVirt 4.2.0 release, published on Dec 20th 2017.

Since the problem described in this bug report should be
resolved in oVirt 4.2.0 release, published on Dec 20th 2017, it has been closed with a resolution of CURRENT RELEASE.

If the solution does not work for you, please open a new bug report.