From: ara.t.howard@...
Date: 2005-12-09T12:40:52+09:00
Subject: Re: fastcgi and shared interpreters

On Fri, 9 Dec 2005, James Britt wrote:

> I'm doing more work with fascgi and scgi, and I'm looking for some
> clarification.  Are there configurations for either of these where multiple
> application processes are sharing the same Ruby interpreter?
>
> If my own application code is not using threads, do I need to be concerned
> with race conditions or data access conflicts?

fastcgi is process based - you don't need to worry about any concurrent access
__other__ than between any two processes.   for instance, if your application
did something like

   log = open "log", "w"

   log << 42

then you could quite possibly have two processes writing to the log file since
apache can, depending on configuration, spawn a few processes to handle
requests.  each request, however, defintely is running in one ruby
interpreter.

regards.

-a
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