From: Brian Candler <b.candler@...>
Date: 2010-04-07T05:33:11+09:00
Subject: Re: Maximum number of sockets

I'd have thought that you'd hit a limit of 1024 because of fd_set (man 
select). When I run your code, it stops after 1021 with:

in `initialize': Too many open files - socket(2) (Errno::EMFILE)

This is ruby 1.8.7 (2009-06-12 patchlevel 174) [i486-linux]
from Karmic.

I suspect you have managed to go 8 bytes beyond the limit (1024+64=1088) 
before overwriting something important and killing the ruby interpreter 
- presumably the newer 1.8.7 I have fixes this.

To go beyond this limit you may need to use something like eventmachine 
which uses poll/epoll instead of select.
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