[Users] Nodes lose storage at random

[Ronen Hod]

On 02/24/2014 11:48 AM, Nir Soffer wrote:
> ----- Original Message -----
>> From: "Johan Kooijman" <mail at johankooijman.com>
>> To: "Nir Soffer" <nsoffer at redhat.com>
>> Cc: "users" <users at ovirt.org>
>> Sent: Monday, February 24, 2014 2:45:59 AM
>> Subject: Re: [Users] Nodes lose storage at random
>>
>> Interestingly enough - same thing happened today, around the same time.
>> Logs from this host are attached.
>>
>> Around 1:10 AM stuff starts to go wrong again. Same pattern - we reboot the
>> node and the node is fine again.
> So we made some progress, we know that it is not a problem with old kernel.
>
> In messages we see the same picture:
>
> 1. sanlock fail to renew the lease
> 2. after 80 secodns, kill vdsm
> 3. sanlock and vdsm cannot access the storage
> 4. kernel complain about nfs server timeouts
>     (explains why sanlock failed to renew the lease)
> 5. after reboot, nfs is accessible again
> 6. after few days goto step 1
>
> This looks like kernel nfs issue.
>
> Could be also kvm issue (running bsd on the one of the vm?)
>
> Could be also some incompatibility with the nfs server - maybe you are using
> esoteric configuration options?
>
> CCing Ronen, in case this is related to kvm.

Not seems to be related to KVM.
Adding Ric Wheeler.

Ronen.

>
> thread: http://lists.ovirt.org/pipermail/users/2014-February/021507.html
>
> Nir