[Sheepdog] increasing maximum # of open files

[Keiichi SHIMA]

Hello,

I am now testing sheepdog with 20 nodes, and found that the sheep process uses a lot of sockets and exceeds default # of maximum open files in ubuntu 10.04 environment.

The attached patch will solve this problem, however, I don't think the patch is very good and the way to go.  Probably the sheep process should dynamically adapt the resource limit based on the # of nodes in the cluster.

Regards,
---
Keiichi SHIMA  <shima at wide.ad.jp>
WIDE Project http://www.wide.ad.jp/


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