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From Oliver Xie <>
Subject RE: Threading problem in the XSLT Processor
Date Mon, 22 May 2000 22:15:40 GMT
it is worthwhile to jump into version 1.7.4. the same threading problem no
longer exists. 

-----Original Message-----
From: Donald Ball []
Sent: Saturday, May 20, 2000 12:08 AM
To: Cocoon
Subject: Re: Threading problem in the XSLT Processor

On Fri, 19 May 2000, Oliver Xie wrote:

> Hello,
> I'm using Cocoon 1.7 and running into a thread related problem in a
> multi-user environment. I would see the "Error found handling the request"
> exception when my producer instance (a subclass of
> multiple requests. By looking into the exception,
> 3), I figured that the problem might be caused by the race conditions
> multiple requests to the processor instance. After added synchronization
> the process method in, the problem has gone away. Does
> anyone know this thread safe issue in Cocoon's processing level, and have
> better solution to it?

First of all, are you really using 1.7? We're all the way up to 1.7.4, I'd
really recommend upgrading as we've patched many bugs since then. Secondly
- cocoon creates a new XSLTProcessor from Xalan's XSLTProcessorFactory for
every XSLT transformation. I assume that is threadsafe; perhaps Scott
might be able to comment on this though? In any case, do you mind
upgrading to 1.7.4 and seeing if you still encounter this problem? If so,
we'll track it down. (oh, and if you're not using Xalan, that would be
relevant information :))

- donald

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