The libvirt and qemu version in the VDSM host may help the debugging.
Alexandru Vladulescu:
Hi,
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:
/
//[root@hyper02 ~]# vdsClient -s 0 list//
//Traceback (most recent call last)://
// File "/usr/share/vdsm/vdsClient.py", line 2275, in <module>//
// code, message = commands[command][0](commandArgs)//
// File "/usr/share/vdsm/vdsClient.py", line 280, in do_list//
// response = self.s.list(True, vms)//
// File "/usr/lib64/python2.6/xmlrpclib.py", line 1199, in __call__//
// return self.__send(self.__name, args)//
// File "/usr/lib64/python2.6/xmlrpclib.py", line 1489, in __request//
// verbose=self.__verbose//
// File "/usr/lib64/python2.6/xmlrpclib.py", line 1253, in request//
// return self._parse_response(h.getfile(), sock)//
// File "/usr/lib64/python2.6/xmlrpclib.py", line 1392, in
_parse_response//
// return u.close()//
// File "/usr/lib64/python2.6/xmlrpclib.py", line 838, in close//
// raise Fault(**self._stack[0])//
//Fault: <Fault 1: "<type 'exceptions.TypeError'>:cannot marshal None
unless allow_none is enabled">/
Paste from ovirt admin GUI log:
/2013-Feb-07, 15:29:59 VM ipa01 is down. Exit message: User shut down//
//2013-Feb-07, 15:29:34 Migration failed due to Error: Fatal error
during migration (VM: ipa01, Source Host: Hyper02).//
//2013-Feb-07, 15:29:32 Starting migration of VM ipa01 from Host
Hyper02 to Host Hyper01 (User: admin@internal.).//
//2013-Feb-07, 15:29:10 Migration failed due to Error: Fatal error
during migration (VM: ipa01, Source Host: Hyper02).//
//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.//
//2013-Feb-07, 15:29:08 Starting migration of VM ipa01 from Host
Hyper02 to Host Hyper01 (User: admin@internal.).//
//2013-Feb-07, 15:24:58 Detected new Host Hyper02. Host state was set
to Up.//
//2013-Feb-07, 15:24:53 Host Hyper02 is initializing. Message:
Recovering from crash or Initializing//
//2013-Feb-07, 15:22:18 VM ipa01 was resumed by admin@internal (Host:
Hyper02).//
//2013-Feb-07, 15:22:18 VM ipa01 was resumed by admin@internal (Host:
Hyper02).//
//2013-Feb-07, 15:20:43 Snapshot [initial installation][after ipa
server installation] creation for VM ipa01 has been completed.//
//2013-Feb-07, 15:20:43 VM ipa01 has paused due to unknown storage error./
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.
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.
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.
Regards,
Alex
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--
---
?? Shu Ming
Open Virtualization Engineerning; CSTL, IBM Corp.
Tel: 86-10-82451626 Tieline: 9051626 E-mail: shum...@cn.ibm.com or
shum...@linux.vnet.ibm.com
Address: 3/F Ring Building, ZhongGuanCun Software Park, Haidian District,
Beijing 100193, PRC
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