On 20/07/12 11:24, George Shuklin wrote: > Good day. > > I've start to play with Ceph... And I found some kinda strange > performance issues. I'm not sure if this is due ceph limitation or my > bad setup.
I'm seeing a similar problem which looks like a potential bug, which someone else seems to have already reported (http://www.spinics.net/lists/ceph-devel/msg07335.html and http://www.spinics.net/lists/ceph-devel/msg07691.html) The problem only seems to hit for me when I do random writes - can you try fio with sequential writes (rw=write) and see if your problem also disappears? It might help confirm this as an issue. Thanks, Matthew -- The University of Edinburgh is a charitable body, registered in Scotland, with registration number SC005336.
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