>>We use Proxmox, so I think it uses librbd ? As It's me that I made the proxmox rbd plugin, I can confirm that yes, it's librbd ;) Is the ceph cluster on dedicated nodes ? or vms are running on same nodes than osd daemons ? >>And I precise that not all VMs on that pool crashed, only some of them >>(a large majority), and on a same host, some crashed and others not. Is the vm crashed, like no more qemu process ? or is it the guest os which is crashed ? (do you use virtio, virtio-scsi or ide for your guest ?) ----- Mail original ----- De: "Florent Bautista" <florent@xxxxxxxxxxx> À: "aderumier" <aderumier@xxxxxxxxx> Cc: "ceph-users" <ceph-users@xxxxxxxxxxxxxx> Envoyé: Lundi 16 Mars 2015 11:14:45 Objet: Re: Changing pg_num => RBD VM down ! On 03/16/2015 11:03 AM, Alexandre DERUMIER wrote: > This is strange, that could be: > > - qemu crash, maybe a bug in rbd block storage (if you use librbd) > - oom-killer on you host (any logs ?) > > what is your qemu version ? > Now, we have version 2.1.3. Some VMs that stopped were running for a long time, but some other had only 4 days uptime. And I precise that not all VMs on that pool crashed, only some of them (a large majority), and on a same host, some crashed and others not. We use Proxmox, so I think it uses librbd ? _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com