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From "Rottmann, Lars" <>
Subject AW: AW: AW: Cocoon 2.1.3 breakdown when load testing
Date Thu, 08 Jan 2004 17:20:10 GMT

>>Does anyone of you know if the following log message from the 
>>cocoon-sitemap.log is of major importance? Might there be a link to the 
>>loss of performance I noticed, maybe because of a declining number of 
>>available pooled components?
>>WARN    (2004-01-06) 17:19.49:453   [sitemap] (/vsky/index.preg)
>>wap-4/ExcaliburComponentSelector: Attempted to release a org.apache.coc 
>>oon.components.pipeline.impl.CachingProcessingPipeline but its handler 
>>could not be located.
>This message can occur when a component is released several times.

How can this happen? Is it really harmless?

I added a 'pool-size="512"' attribute to the CachingProcessingPipeline
definition inside the map:pipes section of the sitemap. This helped and the
warning messages vanished (none after serving 13M requests). 

So I propose that this attribute gets added to the default sitemap with a
decent number of pooled components. This should prevent such warnings under
heavy load.


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