From: Eric Hodel <drbrain@...7.net>
Date: 2006-11-16T05:21:28+09:00
Subject: Re: thread dump?

On Oct 22, 2006, at 12:12 PM, Joel VanderWerf wrote:
> cs5b@yahoo.com wrote:
>> Hi there, I have a process that seems to be stuck somewhere. Is there
>> the possibility of doing a thread dump to show where it is hanging  
>> on?
>> Cheers -
>> Christian
>
> Not in general, without a Thread#backtrace method. I've asked for  
> it...
>
> http://blade.nagaokaut.ac.jp/cgi-bin/scat.rb/ruby/ruby-talk/159482
>
> As noted in that post, you can destructively find out where the  
> thread is by calling #raise on it. Just make sure the thread has an  
> exception handler somewhere to print out the exception and backtrace.

$ ruby -e 't = Thread.start do sleep end; t.raise "hi"; t.value'
-e:1: hi (RuntimeError)
         from -e:1:in `value'
         from -e:1

-- 
Eric Hodel - drbrain@segment7.net - http://blog.segment7.net
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