Bug 1297490

Summary:	NPE is thrown in host setup networks dialog when trying configuring a host of higher version than the engine one
Product:	[oVirt] ovirt-engine	Reporter:	Yevgeny Zaspitsky <yzaspits>
Component:	Frontend.WebAdmin	Assignee:	Yevgeny Zaspitsky <yzaspits>
Status:	CLOSED CURRENTRELEASE	QA Contact:	Michael Burman <mburman>
Severity:	medium	Docs Contact:
Priority:	unspecified
Version:	3.6.2	CC:	alkaplan, awels, bugs, danken, gklein, mburman, mmucha, myakove, sbonazzo, ylavi
Target Milestone:	ovirt-3.6.3	Flags:	rule-engine: ovirt-3.6.z+ rule-engine: exception+ ylavi: planning_ack+ danken: devel_ack+ myakove: testing_ack+
Target Release:	3.6.3.1
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:		Doc Type:	Bug Fix
Doc Text:		Story Points:	---
Clone Of:		Environment:
Last Closed:	2016-02-18 11:08:13 UTC	Type:	Bug
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	Network	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:

Description Yevgeny Zaspitsky 2016-01-11 16:06:04 UTC

Description of problem:
NPE is thrown when trying configuring networks on a host with VDSM version higher than the engine one. That happens because the code tries to a config value for the host version, which is not exists in the engine DB (as that is considered as a future one relative to the engine), instead of checking cluster support level (which could not be unknown/new to the engine).

Version-Release number of selected component (if applicable):
engine 3.6
vdsm - master (4.0)

How reproducible:
100%

Steps to Reproduce:
1. Install a v4.0 host to engine 3.6
2. try to open setup networks dialog for the newly installed host
3.

Actual results:
The gear spins endlessly an NPE appears in the browser console log.

Expected results:
An exception should not be thrown and the dialog should appear flawlessly.

Additional info:
The NPE happens in org.ovirt.engine.ui.uicommonweb.models.hosts.network.NetworkOperationFactory:138 when trying cast the null value returned by AsyncDataProvider.isNetworkExclusivenessPermissiveValidation.

Comment 1 Yevgeny Zaspitsky 2016-02-01 18:50:10 UTC

*** Bug 1303600 has been marked as a duplicate of this bug. ***

Comment 2 Michael Burman 2016-02-15 09:28:01 UTC

Verified on - 3.6.3.1-0.1.el6 with vdsm-4.17.999-593.git2452685.el7.centos.noarch(nightly 4.0)

Comment 3 Yevgeny Zaspitsky 2016-02-18 11:18:46 UTC

*** Bug 1305892 has been marked as a duplicate of this bug. ***