>>VMs are running on the same nodes than OSD Are you sure that you didn't some kind of out of memory. pg rebalance can be memory hungry. (depend how many osd you have). do you see oom-killer in your host logs ? ----- Mail original ----- De: "Florent Bautista" <florent@xxxxxxxxxxx> À: "aderumier" <aderumier@xxxxxxxxx> Cc: "ceph-users" <ceph-users@xxxxxxxxxxxxxx> Envoyé: Lundi 16 Mars 2015 12:35:11 Objet: Re: Changing pg_num => RBD VM down ! On 03/16/2015 12:23 PM, Alexandre DERUMIER wrote: >>> 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 ? > VMs are running on the same nodes than OSD >>> 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 ?) > > I don't really know what crashed, I think qemu process but not sure. We use virtio _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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