[Sheepdog] Sheepdog 0.4.0 schedule and plan

[Liu Yuan]

On 05/15/2012 01:31 AM, Shawn Moore wrote:

> If I had to list them in order of importance for us, it's:
> 
> 1. reclaim unused objects automatically


I want to mention that Farm doesn't have this issue.

Kazum and I have tried to address this issue for Simple store, but
unfortunately no a simple yet efficient method coming out. This problem
is more difficult than it looks, due to independent node recovering and
it is very hard to reach agreement for a distributed system without
simple mechanism. (need paxos?)

Thanks,
Yuan

> 2. add hierarchical zones support
> 3. use differential copy for fast object recovery