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Bug 985770 - [vdsm] AttributeError: GuestAgent instance has no attribute '_sock' during vmDestroy. VM is stuck in 'Powering down(not responding)' state
[vdsm] AttributeError: GuestAgent instance has no attribute '_sock' during vm...
Status: CLOSED ERRATA
Product: Red Hat Enterprise Virtualization Manager
Classification: Red Hat
Component: vdsm (Show other bugs)
3.2.0
x86_64 Unspecified
unspecified Severity high
: ---
: 3.3.0
Assigned To: Vinzenz Feenstra [evilissimo]
Pavel Novotny
virt
:
: 1081275 (view as bug list)
Depends On: 1011608
Blocks:
  Show dependency treegraph
 
Reported: 2013-07-18 04:23 EDT by Elad
Modified: 2015-09-22 09 EDT (History)
10 users (show)

See Also:
Fixed In Version: is8
Doc Type: Bug Fix
Doc Text:
When the guest agent socket could not be created, VDSM could prevent the release of the virtual machine, so the virtual machine is stuck in a powering down and unresponsive state. Now, when the guest agent socket is not created, VDSM will kill the virtual machine process and restart the VDSM service, and log the occurrence.
Story Points: ---
Clone Of:
Environment:
Last Closed: 2014-01-21 11:29:05 EST
Type: Bug
Regression: ---
Mount Type: ---
Documentation: ---
CRM:
Verified Versions:
Category: ---
oVirt Team: ---
RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: ---


Attachments (Terms of Use)
logs (2.49 MB, application/x-gzip)
2013-07-18 04:23 EDT, Elad
no flags Details


External Trackers
Tracker ID Priority Status Summary Last Updated
Red Hat Knowledge Base (Solution) 767853 None None None Never
oVirt gerrit 17072 None None None Never

  None (edit)
Description Elad 2013-07-18 04:23:52 EDT
Created attachment 775185 [details]
logs

Description of problem:
I tried to power-off a VM and it failed with:

Thread-99::ERROR::2013-07-18 10:17:41,564::BindingXMLRPC::932::vds::(wrapper) unexpected error
Traceback (most recent call last):
  File "/usr/share/vdsm/BindingXMLRPC.py", line 918, in wrapper
    res = f(*args, **kwargs)
  File "/usr/share/vdsm/BindingXMLRPC.py", line 194, in vmDestroy
    return vm.destroy()
  File "/usr/share/vdsm/API.py", line 315, in destroy
    res = v.destroy()
  File "/usr/share/vdsm/libvirtvm.py", line 2654, in destroy
    response = self.releaseVm()
  File "/usr/share/vdsm/libvirtvm.py", line 2606, in releaseVm
    self.guestAgent.stop()
  File "/usr/share/vdsm/guestIF.py", line 219, in stop
    self._channelListener.unregister(self._sock.fileno())
AttributeError: GuestAgent instance has no attribute '_sock'



Version-Release number of selected component (if applicable):
vdsm-4.10.2-23.0.el6ev.x86_64

How reproducible:
happened to me once

Steps to Reproduce:
1. power-off a VM

Actual results:
vdsm fails to power-off the VM:
AttributeError: GuestAgent instance has no attribute '_sock'

Expected results:
VM power-off (destroy) should work properly


Additional info:
logs
Comment 1 Elad 2013-07-18 07:38:09 EDT
This VM was migrated from a 3.3 host (vdsm-4.11.0-121.git082925a.el6.x86_64) to a 3.2 host (vdsm-4.10.2-23.0.el6ev.x86_64).

After that, vdsm reports that it does not get statistics from libvirt about this VM (forever):
'monitorResponse': '-1'
Comment 2 Vinzenz Feenstra [evilissimo] 2013-07-31 04:30:58 EDT
Merged to u/s master and is included in oVirt 3.3 VDSM branch
http://gerrit.ovirt.org/gitweb?p=vdsm.git;a=commit;h=d0469591a5147d6b9920528a0c6b953723888957
Comment 4 Pavel Novotny 2013-10-17 11:04:00 EDT
Verified in vdsm-4.13.0-0.2.beta1.el6ev.x86_64 (is18).

Verification steps:
1) create new VM
2) migrate it from one 3.3 host to another 3.3 host (related to comment 1)
3) power off the VM

VM was powered off successfully, no error message in webadmin and no errors in VDSM logs on both hosts.
Comment 6 Charlie 2013-11-27 19:33:21 EST
This bug is currently attached to errata RHBA-2013:15291. If this change is not to be documented in the text for this errata please either remove it from the errata, set the requires_doc_text flag to 
minus (-), or leave a "Doc Text" value of "--no tech note required" if you do not have permission to alter the flag.

Otherwise to aid in the development of relevant and accurate release documentation, please fill out the "Doc Text" field above with these four (4) pieces of information:

* Cause: What actions or circumstances cause this bug to present.
* Consequence: What happens when the bug presents.
* Fix: What was done to fix the bug.
* Result: What now happens when the actions or circumstances above occur. (NB: this is not the same as 'the bug doesn't present anymore')

Once filled out, please set the "Doc Type" field to the appropriate value for the type of change made and submit your edits to the bug.

For further details on the Cause, Consequence, Fix, Result format please refer to:

https://bugzilla.redhat.com/page.cgi?id=fields.html#cf_release_notes 

Thanks in advance.
Comment 8 errata-xmlrpc 2014-01-21 11:29:05 EST
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.

http://rhn.redhat.com/errata/RHBA-2014-0040.html
Comment 9 David Gibson 2014-04-01 20:13:22 EDT
*** Bug 1081275 has been marked as a duplicate of this bug. ***

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