Thanks Jan!! Cheers Bharath On 10/19/15, 3:17 PM, "Jan Schermer" <jan@xxxxxxxxxxx> wrote: >It happened to me once but I didn't really have any time to investigate >how exactly it behaves. Some VMs had to be rebooted, other VMs survived >but I can't tell if for example rewriting the same block is possible. >Only writes should block in any case. > >I don't know what happens to Cinder, but I don't expect it to work - it >will either timeout or/then fail with 5xx error. > >Jan > >> On 19 Oct 2015, at 11:32, Bharath Krishna <BKrishna@xxxxxxxxxxxxxxx> >>wrote: >> >> I mean cluster OSDs are physically full. >> >> I understand its not a pretty way to operate CEPH allowing to become >>full, >> but I just wanted to know the boundary condition if it becomes full. >> >> Will cinder create volume operation creates new volume at all or error >>is >> thrown at Cinder API level itself stating that no space available? >> >> When IO stalls, will I be able to read the data from CEPH cluster I.e >>can >> I still read data from existing volumes created from CEPH cluster? >> >> Thanks for the quick reply. >> >> Regards >> M Bharath Krishna >> >> On 10/19/15, 2:51 PM, "Jan Schermer" <jan@xxxxxxxxxxx> wrote: >> >>> Do you mean when the CEPH cluster (OSDs) is physically full or when the >>> quota is reached? >>> >>> If CEPH becomes full it just stalls all IO (maybe just write IO, but >>> effectively same thing) - not pretty and you must never ever let it >>> become full. >>> >>> Jan >>> >>> >>>> On 19 Oct 2015, at 11:15, Bharath Krishna <BKrishna@xxxxxxxxxxxxxxx> >>>> wrote: >>>> >>>> Hi >>>> >>>> What happens when Cinder service with CEPH backend storage cluster >>>> capacity is FULL? >>>> >>>> What would be the out come of new cinder create volume request? >>>> >>>> Will volume be created with space not available for use or an error >>>> thrown from Cinder API stating no space available for new volume. >>>> >>>> I could not try this in my environment and fill up the cluster. >>>> >>>> Please reply if you have ever tried and tested this. >>>> >>>> Thank you. >>>> >>>> Regards, >>>> M Bharath Krishna >>>> _______________________________________________ >>>> ceph-users mailing list >>>> ceph-users@xxxxxxxxxxxxxx >>>> http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com >>> >> > _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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