[Gluster-users] Openstack Havana Gluster /var/lib/instances issues

[Carlos Capriotti]

This rings a bell...

I mapped a remote nfs share to one of my nodes and mapped the local nfs
share, to the "local" gluster volume as well and started to copy (with cp)
files from one mount to the other.

Somewhere down the line all stalled, the server was irresponsive, even
restarting glusterd solved nothing. Had to reboot the nodes.

CentOS 6.5 and Gluster 3.4.2.

Since then,  I haven't tried those copies, but, I also, I am now using the
native glusterfs client just in case.




On Wed, Mar 19, 2014 at 3:51 PM, Ray Powell <rpowell1 at uchicago.edu> wrote:

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> I have not seen that with the fuse client.  I had it happen repeatedly
> when we were using gluster/NFS for /var/lib/nova/instances and/or
> /var/lib/nova/instances/_base.  The access to instances-XXXXXX/disk
> (or its qcow2 backing image) would hang completely or be very slow
> under heavy load.  The VM interprets the delay as a problem on
> /dev/vda and remounts RO.
>
>
> On 3/18/14, 5:04 PM, Aydelott, Ryan M. wrote:
> > I was wondering if anyone had seen similar issues before, when
> > booting a vm with a root volume on local disk things work fine.
> >
> > When I try to do the same with /var/lib/nova/instances mounted via
> > gluster/fuse I get the following: http://paste.ubuntu.com/7116594/
> >
> > I have of course insured perms were correct with chown -R nova:nova
> > /var/lib/nova/instances, additionally app armor is completely
> > unloaded/disabled.
> >
> > Has anyone encountered this before? Gluster version is 3.4.2
> >
> >
> > -ryan
> >
> >
> >
> >
> > _______________________________________________ Gluster-users
> > mailing list Gluster-users at gluster.org
> > http://supercolony.gluster.org/mailman/listinfo/gluster-users
> >
>
> - --
> Raymond Powell
> Systems Administrator
> Laboratory for Advanced Computing
> University of Chicago, KCBD 10160
> 900 East 57th Street
> Chicago, IL 60637
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