[libvirt] error: failed to connect to the hypervisor
Hi I am running kvm-78 with libvirt 0.6.1 and see the following error from time to time when my linux-ha cluster tries to run "virsh domstate" to figure out a virtual machine's state: error: failed to connect to the hypervisor In syslog, I see: libvirtd: 23:39:11.357: error : Failed to set close-on-exec file descriptor flag Due to this error, the cluster assumes the machine is not running okay and reboots it in order to fix things. This happened twice in 2 months with 10 machines being queried like that each minute (read: not too well reproducable) What is this and how could I work around it or is this fixed in newer versions and so worth an upgrade? Regards Dominik
On Mon, Aug 03, 2009 at 08:56:48AM +0200, Dominik Klein wrote:
Hi
I am running kvm-78 with libvirt 0.6.1 and see the following error from time to time when my linux-ha cluster tries to run "virsh domstate" to figure out a virtual machine's state:
error: failed to connect to the hypervisor
In syslog, I see:
libvirtd: 23:39:11.357: error : Failed to set close-on-exec file descriptor flag
Due to this error, the cluster assumes the machine is not running okay and reboots it in order to fix things.
This happened twice in 2 months with 10 machines being queried like that each minute (read: not too well reproducable)
What is this and how could I work around it or is this fixed in newer versions and so worth an upgrade?
I've never seen that error message before, but if I had to guess I'd say that was a bug in 0.6.1 libvirt. There were quite a few really nasty bugs in that release, which cause really wierd, random, and inexplicable problems, so I'd really recommend updating to at least 0.6.3 if at all possible. Regards, Daniel -- |: Red Hat, Engineering, London -o- http://people.redhat.com/berrange/ :| |: http://libvirt.org -o- http://virt-manager.org -o- http://ovirt.org :| |: http://autobuild.org -o- http://search.cpan.org/~danberr/ :| |: GnuPG: 7D3B9505 -o- F3C9 553F A1DA 4AC2 5648 23C1 B3DF F742 7D3B 9505 :|
Daniel P. Berrange wrote:
On Mon, Aug 03, 2009 at 08:56:48AM +0200, Dominik Klein wrote:
Hi
I am running kvm-78 with libvirt 0.6.1 and see the following error from time to time when my linux-ha cluster tries to run "virsh domstate" to figure out a virtual machine's state:
error: failed to connect to the hypervisor
In syslog, I see:
libvirtd: 23:39:11.357: error : Failed to set close-on-exec file descriptor flag
Due to this error, the cluster assumes the machine is not running okay and reboots it in order to fix things.
This happened twice in 2 months with 10 machines being queried like that each minute (read: not too well reproducable)
What is this and how could I work around it or is this fixed in newer versions and so worth an upgrade?
I've never seen that error message before, but if I had to guess I'd say that was a bug in 0.6.1 libvirt. There were quite a few really nasty bugs in that release, which cause really wierd, random, and inexplicable problems, so I'd really recommend updating to at least 0.6.3 if at all possible.
Thanks for the reply. I will try to update asap and if I should ever see this again, I will warm up this thread. Have a nice weekend, Dominik
I've never seen that error message before, but if I had to guess I'd say that was a bug in 0.6.1 libvirt. There were quite a few really nasty bugs in that release, which cause really wierd, random, and inexplicable problems, so I'd really recommend updating to at least 0.6.3 if at all possible.
Thanks for the reply. I will try to update asap and if I should ever see this again, I will warm up this thread.
With 0.7.0 I still see the problem. I will try to start libvirt with -vvv and see if I can provide useful logs. Regards Dominik
participants (2)
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Daniel P. Berrange -
Dominik Klein