Re: [SHOWSTOPPER?] cocoon sources no longer thread-safe

[Sylvain Wallez]

Carsten Ziegeler wrote:

Hi,

there were some problems with multi-threading and the environment
stack which should be fixed by last monday - at least that's
what I thought.

However, there is one subtle thing to keep in mind:
ThreadLocal and InheritableThreadLocal variables!
The current environment stack uses a InheritableThreadLocal
variable - so you have to make sure that if you
create/use a different thread that this InheritableThreadLocal
variable is initialized correctly.

Especially when you use thread-pools you have to
manually set this variable (contained in the
CocoonComponentManager) whenever you take a thread
out of the pool and use it.

Is it possible, that your problems are related to this?

If the problem is related to some (Interited)ThreadLocals which haven't the proper value, what about providing a ThreadPool component in Cocoon that cleanly manages these values, so that applications requiring thread do not have to wonder about it ?

-----Original Message-----
From: Greg Weinger [mailto:[EMAIL PROTECTED]]
Sent: Wednesday, December 04, 2002 4:23 AM
To: cocoon-dev
Subject: [SHOWSTOPPER?] cocoon sources no longer thread-safe

<snip/>

MY QUESTION
-----------------------------
1) Is any of this ringing a bell?   Any clues?  Sylvain?

I'm honored you ping me, but why me in particular (just curious) ?

I know this is difficult to test without a sample.  My hope is that the
problem is significant enough to you committers to warrant fixing now.  I
would be happy to put together a test case and example for you to debug on
your own system.

Also, I would love to donate the AsynchronousCIncludeTransformer.  It's
slightly over-componentized at the moment, but I'll send it to anyone
interested.

Ah, yes, please, please ! I'm very interested in this since I need parallel aggregation for a projet I'm currently working on.

And since you kindly propose to donate it, I can also help the migration to Cocoon's CVS.

Thanks,
Sylvain

--
Sylvain Wallez Anyware Technologies
http://www.apache.org/~sylvain http://www.anyware-tech.com
{ XML, Java, Cocoon, OpenSource }*{ Training, Consulting, Projects }



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