Note: This bug is displayed in read-only format because the product is no longer active in Red Hat Bugzilla.

Bug 1605206

Summary:	[downstream clone - 4.2.5] JsonMappingException in businessentities.storage.DiskImage prevents access to Engine
Product:	Red Hat Enterprise Virtualization Manager	Reporter:	RHV bug bot <rhv-bugzilla-bot>
Component:	ovirt-engine	Assignee:	Arik <ahadas>
Status:	CLOSED ERRATA	QA Contact:	Petr Matyáš <pmatyas>
Severity:	high	Docs Contact:
Priority:	unspecified
Version:	4.2.3	CC:	dfodor, lsurette, lsvaty, michal.skrivanek, mperina, Rhev-m-bugs, srevivo, tburke
Target Milestone:	ovirt-4.2.5	Keywords:	ZStream
Target Release:	---	Flags:	pmatyas: testing_plan_complete-
Hardware:	Unspecified
OS:	Unspecified
Whiteboard:
Fixed In Version:		Doc Type:	If docs needed, set a value
Doc Text:		Story Points:	---
Clone Of:	1588738	Environment:
Last Closed:	2018-07-31 17:49:18 UTC	Type:	---
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	Virt	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	1588738
Bug Blocks:

Description RHV bug bot 2018-07-20 12:46:01 UTC

+++ This bug is a downstream clone. The original bug is: +++
+++   bug 1588738 +++
======================================================================

Description of problem:

Cannot access engine UI with message in engine.log and in browser as:

~~~
ERROR [org.ovirt.engine.core.bll.CommandEntityCleanupManager] (EE-ManagedThreadFactory-engineScheduled-Thread-16) [] Exception in performing command entity cleanup: JsonMappingException: Can not find a (Map) Key deserializer for type [simple type, class org.ovirt.engine.core.common.businessentities.storage.DiskImage]
~~~

This is the entry in server.log:

~~~
ERROR [org.jboss.as.ejb3.invocation] (EE-ManagedThreadFactory-engineScheduled-Thread-62) WFLYEJB0034: EJB Invocation failed on component Backend for method public abstract org.ovirt.engine.core.common.action.ActionReturnValue org.ovirt.engine.core.bll.interfaces.BackendInternal.runInternalAction(org.ovirt.engine.core.common.action.ActionType,org.ovirt.engine.core.common.action.ActionParametersBase): javax.ejb.EJBException: org.apache.commons.lang.SerializationException: org.codehaus.jackson.map.JsonMappingException: Can not find a (Map) Key deserializer for type [simple type, class org.ovirt.engine.core.common.businessentities.storage.DiskImage]
~~~



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

RHHI 1.1 with RHV 4.2

rhvm-4.2.3.8-0.1.el7.noarch

vdsm-4.20.27.2-1.el7ev.x86_64
glusterfs-server-3.8.4-54.8.el7rhgs.x86_64


How reproducible:

Unknown. In this scenario a CopyImageVDSCommand failed and this seemed to help to produce the failure

Steps to Reproduce: 
1. Create a template from a VM which later fails. In this case failed with >> Failed to get shared "write" lock. Is another process using the image?
2. SPM host switched to activating / unassigned
3. No other host takes SPM role.

Actual results:

User cannot access the Web UI nor the API

Expected results:

User should be able to login



Additional info, workaround:

- Gain SPM role again by rebooting host with SPM role.
- Ensure there are no running tasks in the SPM host.
- Inspect engine DB for tasks/jobs/steps marked as STARTED
- Use taskcleaner.sh dbutil script to remove them.
- Restart ovirt-engine service

(Originally by Javier Coscia)

Comment 7 RHV bug bot 2018-07-20 12:46:28 UTC

Moving to Arik as he proposed internal OVA change

(Originally by Martin Perina)

Comment 8 RHV bug bot 2018-07-20 12:46:31 UTC

WARN: Bug status wasn't changed from MODIFIED to ON_QA due to the following reason:

[Found non-acked flags: '{'rhevm-4.2.z': '?'}', ]

For more info please contact: rhv-devops: Bug status wasn't changed from MODIFIED to ON_QA due to the following reason:

[Found non-acked flags: '{'rhevm-4.2.z': '?'}', ]

For more info please contact: rhv-devops

(Originally by rhv-bugzilla-bot)

Comment 9 RHV bug bot 2018-07-20 12:46:34 UTC

This bug is Modified for some time already, but misses PM ack, can you please check? Also clone will be needed.

(Originally by Dusan Fodor)

Comment 13 Petr Matyáš 2018-07-27 11:48:42 UTC

Verified on ovirt-engine-4.2.5.2-0.1.el7ev.noarch

Comment 15 errata-xmlrpc 2018-07-31 17:49:18 UTC

Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

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

https://access.redhat.com/errata/RHBA-2018:2318