Re: [ovirt-users] storage issue's with oVirt 3.5.1 + Nexenta NFS
Hi Fred,
This is one of the nodes from yesterday around 01:00 (20-04-15). The
issue started around 01:00.
https://bpaste.net/raw/67542540a106
The VDSM logs are very big so i am unable to paste a bigger part of the
logfile, i don't know what the maximum allowed attachment size is of the
mailing list?
dmesg on the one the nodes (despite this message the storage is still
accessible):
https://bpaste.net/raw/67da167aa300
Kind regards,
Maikel
On 04/21/2015 02:32 PM, Fred Rolland wrote:
Hi,
Can you please attach VDSM logs ?
Thanks,
Fred
----- Original Message -----
> From: "Maikel vd Mosselaar" <m.vandemosselaar(a)smoose.nl>
> To: users(a)ovirt.org
> Sent: Monday, April 20, 2015 3:25:38 PM
> Subject: [ovirt-users] storage issue's with oVirt 3.5.1 + Nexenta NFS
>
> Hi,
>
> We are running ovirt 3.5.1 with 3 nodes and seperate engine.
>
> All on CentOS 6.6:
> 3 x nodes
> 1 x engine
>
> 1 x storage nexenta with NFS
>
> For multiple weeks we are experiencing issues of our nodes that cannot
> access the storage at random moments (atleast thats what the nodes think).
>
> When the nodes are complaining about a unavailable storage then the load
> rises up to +200 on all three nodes, this causes that all running VMs
> are unaccessible. During this process oVirt event viewer shows some i/o
> storage error messages, when this happens random VMs get paused and will
> not be resumed anymore (this almost happens every time but not all the
> VMs get paused).
>
> During the event we tested the accessibility from the nodes to the
> storage and it looks like it is working normal, at least we can do a normal
> "ls" on the storage without any delay of showing the contents.
>
> We tried multiple things that we thought it causes this issue but
> nothing worked so far.
> * rebooting storage / nodes / engine.
> * disabling offsite rsync backups.
> * moved the biggest VMs with highest load to different platform outside
> of oVirt.
> * checked the wsize and rsize on the nfs mounts, storage and nodes are
> correct according to the "NFS troubleshooting page" on ovirt.org.
>
> The environment is running in production so we are not free to test
> everything.
>
> I can provide log files if needed.
>
> Kind Regards,
>
> Maikel
>
>
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> Users(a)ovirt.org
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