> Op 13 juni 2016 om 16:07 schreef George Shuklin <george.shuk...@gmail.com>:
> 
> 
> Hello.
> 
> How objects are handled in the rbd? If user writes 16k in the RBD image 
> with 4Mb object size, how much would be written in the OSD? 16k x 
> replication or 4Mb x replication (+journals for both cases)?
> 

librbd will write 16k through RADOS. That will be replicated through the 
cluster.

It could be that this 16k spans over two objects though, but it will not be a 
full 4MB re-write.

Wido

> Thanks.
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