Le 2015-10-12 14:04, Nir Soffer a écrit :
>> On Mon, Oct 12, 2015 at 11:14 AM, Nico <glus...@distran.org> wrote: > > Yes, engine will let you use such volume in 3.5 - this is a bug. In 3.6 you > will > not be able to use such setup. > > replica 2 fails in a very bad way when one brick is down; the > application may get > stale data, and this breaks sanlock. You will be get stuck with spm > that cannot be > stopped and other fun stuff. > > You don't want to go in this direction, and we will not be able to support > that. For the record, I already rebooted node1; and the node2 took over the existing VM from node 1 and vice-versa. GlusterFS worked fine, oVirt application was still working fine .. i guess it is because it was a soft reboot which stops softly the services. I got another case where i stuck the network on the 2 nodes simultaneously after a bad manipulation on oVirt GUI and i got a split brain. i kept the error at this very moment: root@devnix-virt-master02 nets]# gluster volume heal ovirt info split-brain Brick devnix-virt-master01:/gluster/ovirt/ /d44ee4b0-8d36-467a-9610-c682a618b698/dom_md/ids Number of entries in split-brain: 1 Brick devnix-virt-master02:/gluster/ovirt/ /d44ee4b0-8d36-467a-9610-c682a618b698/dom_md/ids Number of entries in split-brain: 1 This file was having same size on both nodes; so it was hard to select one. Finally i chose the younger one and all was back online after the heal. It is this kind of stuff you are talking about with 2 nodes ? For now, I don't have budget to take a third one; so i'm a bit stuck and disappointing. I've a third device but for backup, it has lot of storage but low cpu abilities (no VT-X) so i can't use it as hypervisor. I could maybe use it as a third brick but is it possible to have this kind of configuration ? 2 actives nodes as hypervisor and 1 third only for gluster replica 3 ? Cheers Nico
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