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Posted to dev@cocoon.apache.org by "Gavin (JIRA)" <ji...@apache.org> on 2006/03/25 05:54:00 UTC
[jira] Commented: (COCOON-1574) Memory Leak with XMLFileModule
[ http://issues.apache.org/jira/browse/COCOON-1574?page=comments#action_12371831 ]
Gavin commented on COCOON-1574:
-------------------------------
Hi Guys, Any progress on this issue at all.
Forrest is looking to a new release soon, and we have an issue that depends on this one currently scheduled to be fixed before the release.
Thanks
Gav...
> Memory Leak with XMLFileModule
> ------------------------------
>
> Key: COCOON-1574
> URL: http://issues.apache.org/jira/browse/COCOON-1574
> Project: Cocoon
> Type: Bug
> Components: * Cocoon Core
> Versions: 2.2-dev (Current SVN)
> Environment: Operating System: Windows XP
> Platform: PC
> Reporter: Ron Blaschke
> Assignee: Ralph Goers
>
> I'm currently looking into a memory leak issue at Apache Forrest. Forrest's
> site currently needs to be built with -Xmx128m because of this. I believe the
> issue is originated at Cocoon's LinkRewriterTransformer or XMLFileModule.
> A memory profiler shows lots (30MB+) of DOM DocumentImpls (150+ objects), which
> get referenced by XMLFileModule.DocumentHelper. Their URIs are linkmap-xxx.
> LinkRewriterTransformer#createTransformedLink(String) uses a InputModuleHelper,
> which seems to reference a XMLFileModule.
> ...
> newLink = (String) modHelper.getAttribute(this.objectModel,
> ^^^^^^^^^
> ...
> The XMLFileModule keeps the visited documents in a map, which is where they
> build up.
> Just for testing, I changed XMLFileModule#getDocumentHelper(Configuration) from
> this.documents.put(src, new DocumentHelper(reload, cache, src, this));
> to
> return new DocumentHelper(reload, cache, src, this);
> Thus, a new DocumentHelper is created every time, instead of caching them. The
> result: No more memory problems, Apache Forrest's site builds again with -Xmx32.
> Ron
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