[Users] Issues using local storage for gluster shared volume

[Vijay Bellur]

On 03/29/2013 07:19 PM, Tony Feldmann wrote:
> Aren't there concerns with xfs and large files in cases of failures?  I
> was under the impression that if xfs was writing to a file and the
> system died it would zero out the entire file.  Just hesitant to put
> large vm files on a fs like that.  Is this still an issue with xfs?

There are no known problems with recent kernels. There are quite a few 
enterprise storage solutions that run on xfs.

Thanks,
Vijay

>
> On Fri, Mar 29, 2013 at 1:08 AM, Vijay Bellur <vbellur at redhat.com
> <mailto:vbellur at redhat.com>> wrote:
>
>     On 03/28/2013 08:19 PM, Tony Feldmann wrote:
>
>         I have been trying for a month or so to get a 2 node cluster up and
>         running.  I have engine installed on the first node, then add
>         each each
>         system as a host to a posix dc.  Both boxes have 4 data disks.
>           After
>         adding the hosts I create a distributed replicate volume using 3
>         disk
>         from each host with ext4 filesystems. I click the 'optimize for
>         virt'
>         option on the volume.  There is a message in events that says
>         that it
>         can't set a volume option, then it sets 2 volume options.
>           Checking the
>         options tab I see that it added the gid/uid options.  I was
>         unable to
>         find in the logs what option was not set, I just see a message about
>         usage for volume set <volname> <option>.  The volume starts fine
>         and I
>         am able to create a data domain on the volume.  Once the domain is
>         created I try to create a vm and it fails creating the disk.  Error
>         messages are along the lines of task file exists and can't
>         remove task
>         files.  There are directories under tasks and when trying to
>         manually
>         remove them I get the "directory not empty" error.  Can someone
>         please
>         shed some light on what I am doing wrong to get this 2 node
>         cluster with
>         local disk as shared storage up and running?
>
>
>     There are known problems with ext4 and gluster at the moment. Can
>     you please confirm if you see similar behaviour with xfs and gluster?
>
>     Thanks,
>     Vijay
>
>