Bug 1437375 – getAllVmIoTunePolicies exceptions in VDSM

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Bug 1437375 - getAllVmIoTunePolicies exceptions in VDSM

Summary:	getAllVmIoTunePolicies exceptions in VDSM

Status:	CLOSED ERRATA

Aliases:	None

Product:	Red Hat Enterprise Virtualization Manager
Classification:	Red Hat
Component:	vdsm (Show other bugs)
Sub Component:
Version:	4.0.7
Hardware:	Unspecified Unspecified

Priority	medium Severity medium
Target Milestone:	ovirt-4.2.0
Target Release:	---
Assigned To:	Andrej Krejcir
QA Contact:	Artyom
Docs Contact:

URL:
Whiteboard:
Keywords:	Triaged, ZStream

Depends On:
Blocks:	1448473
	Show dependency tree / graph

Reported:	2017-03-30 04:27 EDT by Michal Skrivanek
Modified:	2018-05-15 13:53 EDT (History)
CC List:	10 users (show)

See Also:
Fixed In Version:
Doc Type:	No Doc Update
Doc Text:	undefined
Story Points:	---
Clone Of:
Clones:	1448473 (view as bug list)
Environment:
Last Closed:	2018-05-15 13:51:25 EDT
Type:	Bug
Regression:	---
Mount Type:	---
Documentation:	---
CRM:
Verified Versions:
Category:	---
oVirt Team:	SLA
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---

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External Trackers
Tracker	ID	Priority	Status	Summary	Last Updated
oVirt gerrit	75285	master	MERGED	Qos: Catch exception for disconnected domain	2017-04-13 08:10 EDT
oVirt gerrit	75605	ovirt-4.1	MERGED	Qos: Catch exception for disconnected domain	2017-04-19 02:48 EDT
Red Hat Product Errata	RHEA-2018:1489	None	None	None	2018-05-15 13:53 EDT

Groups: None (edit)

Description Michal Skrivanek 2017-03-30 04:27:16 EDT

Around VM lifecycle changes MOM calls are triggering exceptions in VDSM. AFAICT it doesn't have impact on how product works, but it does have impact on troubleshooting and it triggers customer false alerts

Example from journal, likely related to a live migration:

Mar 29 13:23:21 bl460-558 journal: vdsm jsonrpc.JsonRpcServer ERROR Internal server error#012Traceback (most recent call last):#012  File "/usr/lib/python2.7/site-packages/yajsonrpc/__init__.py", line 545, in _handle_request#012    res = method(**params)#012  File "/usr/lib/python2.7/site-packages/vdsm/rpc/Bridge.py", line 195, in _dynamicMethod#012    result = fn(*methodArgs)#012  File "/usr/share/vdsm/API.py", line 1358, in getAllVmIoTunePolicies#012    io_tune_policies_dict = self._cif.getAllVmIoTunePolicies()#012  File "/usr/share/vdsm/clientIF.py", line 447, in getAllVmIoTunePolicies#012    vm_io_tune_policies[v.id] = {'policy': v.getIoTunePolicy(),#012  File "/usr/share/vdsm/virt/vm.py", line 2772, in getIoTunePolicy#012    qos = self._getVmPolicy()#012  File "/usr/share/vdsm/virt/vm.py", line 2746, in _getVmPolicy#012    metadata_xml = self._dom.metadata(#012  File "/usr/lib/python2.7/site-packages/vdsm/virt/virdomain.py", line 47, in __getattr__#012    % self.vmid)#012NotConnectedError: VM u'dbc70ee7-1625-4660-8931-2d0639f64748' was not started yet or was shut down

Comment 2 Andrej Krejcir 2017-04-06 05:42:58 EDT

This problem will also be solved by the caching of IO tune policies done in Bug 1435218.

Comment 3 rhev-integ 2017-04-26 06:51:50 EDT

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

[FOUND CLONE FLAGS: ['rhevm-4.1.z', 'rhevm-4.2-ga'], ]

For more info please contact: rhv-devops@redhat.com

Comment 4 rhev-integ 2017-05-05 05:26:11 EDT

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

[FOUND CLONE FLAGS: ['rhevm-4.1.z', 'rhevm-4.2-ga'], ]

For more info please contact: rhv-devops@redhat.com

Comment 7 Artyom 2017-11-20 08:20:11 EST

Verified on ovirt-engine-4.2.0-0.0.master.20171116212005.git61ffb5f.el7.centos.noarch

Comment 12 errata-xmlrpc 2018-05-15 13:51:25 EDT

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/RHEA-2018:1489

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