ЧТо делать при ошибке:
open files.
2013-12-01 17:12:13.540616 > Error while calling getinfo:
2013-12-01 17:12:13.540706 > Traceback (most recent call last):
2013-12-01 17:12:13.540744 > Failure: twisted.internet.error.ConnectBindError: Couldn't bind: 24: Too many open files.

нода из-за этого падает.

ЗЫ.
Adding the following lines to /etc/security/limits.conf should help if you are having "too many open files" troubles:

* soft nofile 16384
* hard nofile 65536