Ceph package is 0.94.5, which is hammer. So yes it could very well be
this bug. Must I assume then that it only affects rbd bench and not the
general functionality of the client?



On 2016-01-25 1:59 PM, Jason Dillaman wrote:
> What release are you testing?  You might be hitting this issue [1] where 'rbd 
> bench-write' would issue the same IO request repeatedly.  With writeback 
> cache enabled, this would result in virtually no ops issued to the backend.
> 
> [1] http://tracker.ceph.com/issues/14283
> 


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