[ovirt-devel] Gluster locking the DC

[Christopher Pereira]

Hi,

1) FYI: https://bugzilla.redhat.com/show_bug.cgi?id=1217576
I will need some help from a Gluster expert to debug this issue, since I 
don't know Gluster internals.
On a replica-3 cluster with best practices, it's very frustrating to see 
the whole DC going down because of a FS lock.

2) Should we at some point freeze gluster updates and stick to a stable 
version, or are we following new features required by oVirt?
I feel Gluster very unstable yet, but maybe it's just me.
I guess that if a "stat" operation (mount, lsof, etc) of a gluster 
volume is locking, it's the layer below sanlock, right?
I don't think that sanlock should be able to lock Gluster, does it?

3) My feature request:
Sanlock+Gluster unit-tests written by the sanlock authors to stress and 
exploit all Gluster weaknesses.

PS: The good news is that [1] and other related issues were finally fixed.

[1] https://bugzilla.redhat.com/show_bug.cgi?id=1201355

Best regards,
Christopher.