[ovirt-users] ERROR 'no free file handlers in pool' while creating VM from template

[Tiemen Ruiten]

Would this be limits for the vdsm process? Then what is the proper way to
change ulimits for VDSM?

On 16 December 2014 at 20:45, Donny Davis <donny at cloudspin.me> wrote:
>
> The only thing I can think of would be file hard and soft limits, but I am
> no oVirt pro.
>
>
>
> 'no free file handlers in pool' that would make sense to me…
>
> Donny
>
>
>
>
>
> *From:* Tiemen Ruiten [mailto:t.ruiten at rdmedia.com]
> *Sent:* Tuesday, December 16, 2014 12:40 PM
> *To:* Donny Davis
> *Cc:* Users at ovirt.org
> *Subject:* Re: [ovirt-users] ERROR 'no free file handlers in pool' while
> creating VM from template
>
>
>
> About 25-30. The nodes are Xeon(R) CPU E5-2650 0 @ 2.00GHz with 16
> hyperthreaded cores and 64 GB of RAM each. At the moment I created the VM,
> processor load on both nodes was less than 1.
>
>
>
> On 16 December 2014 at 20:29, Donny Davis <donny at cloudspin.me> wrote:
>
> What is the VM load you are running on your servers?
>
>
> -----Original Message-----
> From: users-bounces at ovirt.org [mailto:users-bounces at ovirt.org] On Behalf
> Of Tiemen Ruiten
> Sent: Tuesday, December 16, 2014 12:27 PM
> To: users at ovirt.org
> Subject: [ovirt-users] ERROR 'no free file handlers in pool' while
> creating VM from template
>
> Hello,
>
> I ran into a nasty problem today when creating a new, cloned VM from a
> template (one virtual 20 GBdisk) on our two-node oVirt cluster: on the node
> where I started a VM creation job, load skyrocketed and some VMs stopped
> responding until and after the job failed. Everything recovered without
> intervention, but this obviously shouldn't happen. I have attached the
> relevant vdsm log file. The button to create the VM was pressed around
> 11:17, the first error in the vdsm log is at 11:23:58.
>
> The ISO domain is a gluster volume exposed via NFS, the storage domain for
> the VM's is also a gluster volume. The underlying filesystem is ZFS.
> The hypervisor nodes are full CentOS 6 installs.
>
> I'm guessing the 'no free file handlers in pool' in the vdsm log file is
> key here. What can I do to prevent this from happening again? Apart from
> not creating new VMs of course :)
>
> Tiemen
>
>
>
>
> --
>
> Tiemen Ruiten
> Systems Engineer
> R&D Media
>


-- 
Tiemen Ruiten
Systems Engineer
R&D Media
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