[one-users] Error monitoring host

[knawnd at gmail.com]

Hi Humberto,

Just a guess.

What the output of the command 'grep nodeinfo_text 
$ONE_LOCATION/lib/remotes/im/kvm.d/kvm.rb|grep virsh' on front-end node?
I have
nodeinfo_text = `virsh -c qemu:///system nodeinfo`

But it looks like you should change it to
virsh -c qemu+ssh:///system

HTH,
Nikolay.

Humberto N. Castejon Martinez wrote on 21/09/11 19:21:
> Hi,
>
> I know the problem I am going to report has already been discussed, but
> what I have read from previous discussions has not helped.
> My Opennebula front-end has problems to monitor one of my hosts. I get
> the following log messages:
>
> Wed Sep 21 17:03:44 2011 [InM][I]: Command execution fail: 'if [ -x
> "/var/tmp/one/im/run_probes" ]; then /var/tmp/one/im/run_probes kvm
> joker; else $
> Wed Sep 21 17:03:44 2011 [InM][I]: STDERR follows.
> Wed Sep 21 17:03:44 2011 [InM][I]: Permission denied, please try again.
> Wed Sep 21 17:03:44 2011 [InM][I]: Permission denied, please try again.
> Wed Sep 21 17:03:44 2011 [InM][I]: Permission denied (publickey,password).
> Wed Sep 21 17:03:44 2011 [InM][I]: ExitCode: 255
> Wed Sep 21 17:03:44 2011 [InM][E]: Error monitoring host 0 : MONITOR
> FAILURE 0 Could not monitor host joker.
>
> The first thing that I have noticed is that run_probes is not in
> /var/tmp/one/im/, but I have it in /srv/cloud/one/lib/remotes/im/. Can
> that be the source of the problem?
> If I executed from my front end machine the following command as root,
> everything seems to work ok:
>
>   /srv/cloud/one/lib/remotes/im/run_probes kvm joker
>
> However, if i execute it as oneadmin, i get the following error:
>
> Connecting to uri: qemu:///system
> error: unable to connect to '/var/run/libvirt/libvirt-sock': Permission
> denied
> error: failed to connect to the hypervisor
> Error executing kvm.rb
> ARCH=x86_64 MODELNAME="Intel(R) Xeon(R) CPU E5540 @ 2.53GHz"
>
> I have checked, and oneadmin is member of the cloud group in joker, I
> have specified unix_sock_group = "cloud" in /etc/libvirt/libvirtd.conf
> and   libvirt-sock  seems to have the right permissions: srwxrwx--- 1
> root cloud 0 2011-09-21 17:02 /var/run/libvirt/libvirt-sock
> So i do not know why I get the "permission denied" message.
> However, if I run virsh -c qemu+ssh://oneadmin@joker/system, I manage to
> connect to virsh, w/o entering a password.
>
> So i do not really know what the problem is, and hope you can help me.
> The funny thing is that it used to work perfectly, but it stopped
> working suddenly, without me changing anything (or at least I think so).
>
> Cheers,
> Humberto
>
>
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