From: Erik Veenstra <erikveen@...>
Date: 2008-06-12T19:05:14+09:00
Subject: Re: Design question on threads.

> I have a script that launches a bunch of threads. Each thread
> sleeps for the most part, wakes up, fetches a page, does some
> parsing, and goes back to sleep again. Really simple.
> However, on occasion, either the parser or the httpclient
> raises an exception and the thread dies. I can set
> Thread.abort_on_exception to true. But I'd much rather that
> the thread just restarts. More often than not these
> exceptions are not cause enough for the thread to die.

I would rather keep the retry in the body of the thread. I
suppose you've something like this:

 Thread.fork do
   loop do
     # The real stuff...

     sleep 60
   end
 end

Simply add the retry:

 Thread.fork do
   loop do
     begin
       # The real stuff...
     rescue SomeException	# Be careful!
       sleep 1

       retry
     end

     sleep 60
   end
 end

gegroet,
Erik V. - http://www.erikveen.dds.nl/