From: Mike B <barjunk@...>
Date: 2009-03-20T06:32:21+09:00
Subject: Re: Timeouts with Thread#join and Net:HTTP

On Mar 17, 11:11 pm, Rushi <rush...@gmail.com> wrote:
> I have a script doing some multi-threaded work. Every thread is a call
> to an API making a simple post request. My problem is that the script
> throws a Timeout:Error when i'm waiting for all my threads to join
> <code>
> /usr/lib/ruby/1.8/timeout.rb:60:in `rbuf_fill': execution expired
> (Timeout::Error)
>         from test.rb:35:in `join'
>         from test.rb:35
>         from test.rb:34:in `each'
>         from test.rb:34
> </code>
>
> Here's my code - test.rb
> <code>
> amount = 60
> @threads = []
>
> 1.upto(amount) { |i|
>   @threads << Thread.new do
>     puts "New Thread Created #{i}"
>
>     # This thread makes 10 post requests
>     1.upto(10) { |j|
>       puts "Thread #{i} Try #{j}"
>       # => DO post request using Net:HTTP
>       Net::HTTP.start("localhost", "80") do |http|
>           response = http.request_post("/test/mypost.php?get=value",
> "a=b,c=d")
>         end
>     }
>
>   end
>
> }
>
> # Join all the threads we have created
> @threads.each{ |thr|
>    thr.join  # Timeout:ERror thrown here after approx 1.5 mins}
>
> </code>
>
> Wrapping my thread.join call around Timeout::timeout (http://www.ruby-
> doc.org/stdlib/libdoc/timeout/rdoc/classes/Timeout.html) didn't help
> either.
>
> Any suggestions how to make it *not* timeout so that I can finish
> making all the API calls? I've tried hard but haven't been able to
> find a solution

There is a reference to a timeout tool called terminator that you
might look at in James Edward Gray II confreaks presentation
'LittleBIGRuby'  It is a quick reference, but it might do what you
want.

Code is here: http://rubyforge.org/frs/?group_id=1024&release_id=26322

I believe Ara Howard wrote it.

Mike B.