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https://issues.apache.org/jira/browse/JS2-852?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12567108#action_12567108
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Vitaly Baranovsky commented on JS2-852:
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I really don't understand, why Jetspeed stores PortletContentImpl inside
threads (or requests), if I turned off portlet caching.
It is possibly just writing portlet content to response stream when rendering
page without storing portlet content in any intermediate buffer. Why jetspeed
stores portlet contents somewhere?
> Release content buffers after rendering
> ---------------------------------------
>
> Key: JS2-852
> URL: https://issues.apache.org/jira/browse/JS2-852
> Project: Jetspeed 2
> Issue Type: Improvement
> Components: Aggregation
> Affects Versions: 2.2
> Reporter: David Sean Taylor
> Assignee: David Sean Taylor
> Fix For: 2.2
>
>
> With a heap analysis tool, we have discovered that, when using a ThreadPool,
> such as on WAS 6.1, thread locals are being held onto for long periods of
> time.
> In the PortletEntityImpl, we are using a ThreadLocal to associate per user
> content fragments with the current thread, as the entity object is not user
> specific and thus not content specific.
> Instead of putting FragmentPortletDefinition directly on the thread local,
> instead put it on the Request Context request attribute map (which is really
> the servlet container's request attribute map)
> Thus, the FragmentPortletDefinition, and all objects in its subtree, most
> notably ContentFragmentImpl, PortletContentImpl, and PortletContentImpl's
> stream of content, will all be put into true per request storage, and no
> longer stick to the pooled thread locals.
> As an additional improvement, we will add logic to release the PortletContent
> streams after completion of draining of buffered streams out to the servlet
> response stream.
> I also want to investigate stream pooling properly at this time
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