[sheepdog-users] [sheepdog] qustions about sheepdog presentation

[Vasiliy Tolstov]

2014-10-22 13:15 GMT+04:00 Valerio Pachera <sirio81 at gmail.com>:
> qemu sends a read request;
> sheep request from the other nodes the required object;
> it stores a copy of that object in the object cache (ssd);
> the next time qemu is sending a read request for the same object, it
> will read it directly from it's ssd.
>
> Qemu sends a write request;
> sheep write a new object in the object cache (ssd) instead of writing
> that on other nodes;
> after a certain amount of time, it's going to replicate this object on
> the other nodes ad remove it from the cache.
>
> It's evident that if the node dies before replicating the object in
> the cache, you loose data.
>
> Object cache isn't well tested yet, so I suggest not to use it in
> production but please test it and report any issue you may find.


Thanks! Does it possible to control timeout to replicate data from cache?

-- 
Vasiliy Tolstov,
e-mail: v.tolstov at selfip.ru
jabber: vase at selfip.ru