[sheepdog-users] object cache qeustion

Liu Yuan namei.unix at gmail.com
Mon Jun 30 08:17:20 CEST 2014

On Thu, Jun 26, 2014 at 11:08:15AM +0400, Vasiliy Tolstov wrote:
> Hi. I'm not very familar with object cache in sheepdog.
> On local node i have ssd disks and sata.
> SSD can be used to writeback cache for sata (via bcache), or as i see
> i can use it for object cache in sheepdog.
> Bcache can determine sequential io and not write big files to cache
> device. Does it possible something like this in sheepdog? Or how
> sheepdog determine what object need to be cached in writeback mode?

Object cache is client side cache, and we flush dirty data back if VM issue
'FLUSH' request. (e.g, run 'sync' in Guest).


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