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<div class="moz-cite-prefix">The libvirt and qemu version in the
VDSM host may help the debugging.<br>
Alexandru Vladulescu:<br>
</div>
<blockquote cite="mid:5113AFF8.2040202@bfproject.ro" type="cite">
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<br>
Hi,<br>
<br>
<br>
Using 3.1.0-3.19 from dreyou's repo on Centos 6.3 version, running
multiple VM on the hypervisor node and attempting to take a
snapshot from one of the running VMs generates errors for VDSM
daemon as show below:<br>
<small><i><br>
</i><i>[root@hyper02 ~]# vdsClient -s 0 list</i><i><br>
</i><i>Traceback (most recent call last):</i><i><br>
</i><i> File "/usr/share/vdsm/vdsClient.py", line 2275, in
<module></i><i><br>
</i><i> code, message = commands[command][0](commandArgs)</i><i><br>
</i><i> File "/usr/share/vdsm/vdsClient.py", line 280, in
do_list</i><i><br>
</i><i> response = self.s.list(True, vms)</i><i><br>
</i><i> File "/usr/lib64/python2.6/xmlrpclib.py", line 1199, in
__call__</i><i><br>
</i><i> return self.__send(self.__name, args)</i><i><br>
</i><i> File "/usr/lib64/python2.6/xmlrpclib.py", line 1489, in
__request</i><i><br>
</i><i> verbose=self.__verbose</i><i><br>
</i><i> File "/usr/lib64/python2.6/xmlrpclib.py", line 1253, in
request</i><i><br>
</i><i> return self._parse_response(h.getfile(), sock)</i><i><br>
</i><i> File "/usr/lib64/python2.6/xmlrpclib.py", line 1392, in
_parse_response</i><i><br>
</i><i> return u.close()</i><i><br>
</i><i> File "/usr/lib64/python2.6/xmlrpclib.py", line 838, in
close</i><i><br>
</i><i> raise Fault(**self._stack[0])</i><i><br>
</i><i>Fault: <Fault 1: "<type
'exceptions.TypeError'>:cannot marshal None unless
allow_none is enabled"></i></small><br>
<br>
<br>
Paste from ovirt admin GUI log:<br>
<br>
<small><i>2013-Feb-07, 15:29:59 VM ipa01 is down. Exit message:
User shut down</i><i><br>
</i><i>2013-Feb-07, 15:29:34 Migration failed due to Error:
Fatal error during migration (VM: ipa01, Source Host:
Hyper02).</i><i><br>
</i><i>2013-Feb-07, 15:29:32 Starting migration of VM ipa01 from
Host Hyper02 to Host Hyper01 (User: admin@internal.).</i><i><br>
</i><i>2013-Feb-07, 15:29:10 Migration failed due to Error:
Fatal error during migration (VM: ipa01, Source Host:
Hyper02).</i><i><br>
</i><i>2013-Feb-07, 15:29:10 Migration failed due to Error:
Fatal error during migration (VM: ipa01, Source Host:
Hyper02). Trying to migrate to another Host.</i><i><br>
</i><i>2013-Feb-07, 15:29:08 Starting migration of VM ipa01 from
Host Hyper02 to Host Hyper01 (User: admin@internal.).</i><i><br>
</i><i>2013-Feb-07, 15:24:58 Detected new Host Hyper02. Host
state was set to Up.</i><i><br>
</i><i>2013-Feb-07, 15:24:53 Host Hyper02 is initializing.
Message: Recovering from crash or Initializing</i><i><br>
</i><i>2013-Feb-07, 15:22:18 VM ipa01 was resumed by
admin@internal (Host: Hyper02).</i><i><br>
</i><i>2013-Feb-07, 15:22:18 VM ipa01 was resumed by
admin@internal (Host: Hyper02).</i><i><br>
</i><i>2013-Feb-07, 15:20:43 Snapshot [initial
installation][after ipa server installation] creation for VM
ipa01 has been completed.</i><i><br>
</i><i>2013-Feb-07, 15:20:43 VM ipa01 has paused due to unknown
storage error.</i></small><br>
<br>
Looking through htop command could see that VM were still running
and responsive but any vdsclient command failed with the upper
code paste I have given. Solution here was to connect to each VM,
shut it down and restart vdsmd and power it up again. There's no
problem with the storage size as it has aprox 800GB free of space
and running through NFS. All nfs mount points were running okay at
that time.<br>
<br>
After the VM has been snapshoot-ed went into pause mode and had to
un-pause it from GUI, but the VM was still responsive through
network and operations.<br>
<br>
Has anybody seen something related to this by now or it's just
related to 3.1 version ? Mentioning the fact that I did a research
on the similar mailing list topics and could not find something
related to this error. I would happily provide logs if needed. <br>
<br>
<br>
Regards,<br>
Alex<br>
<br>
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</blockquote>
<br>
<br>
<pre class="moz-signature" cols="72">--
---
舒明 Shu Ming
Open Virtualization Engineerning; CSTL, IBM Corp.
Tel: 86-10-82451626 Tieline: 9051626 E-mail: <a class="moz-txt-link-abbreviated" href="mailto:shuming@cn.ibm.com">shuming@cn.ibm.com</a> or <a class="moz-txt-link-abbreviated" href="mailto:shuming@linux.vnet.ibm.com">shuming@linux.vnet.ibm.com</a>
Address: 3/F Ring Building, ZhongGuanCun Software Park, Haidian District, Beijing 100193, PRC</pre>
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