"CRANFORD, CHRIS" <chris.cranf...@setech.com> wrote:

>The OOME I am getting is coming from Heap, and that's even giving
>Tomcat
>1GB of maximum heap.  The instance seems to start successfully outside
>of the MyEclipse environment; however inside MyEclipse it fails
>miserably.  The surprising part of this is that the instance has ran
>with half that amount of maximum Heap Memory prior to 7.0.29 without
>any
>problems or issues with memory errors.  
>
>As far as number of jars in the LIB folder, we only have just over 100
>jars totaling a max of 50mb.  
>
>-----Original Message-----
>From: Christopher Schultz [mailto:ch...@christopherschultz.net] 
>Sent: Saturday, July 14, 2012 12:13 PM
>To: Tomcat Users List
>Subject: Re: OOME while expanding a war with tomcat 7.0.29 but not with
>tomcat 7.0.28
>
>Alberto,
>
>On Jul 14, 2012, at 8:42, Alberto Aresca <alberto.are...@gmail.com>
>wrote:
>
>> I've just upgraded my tomcat from version 7.0.28 to the newly
>released
>> 7.0.29 but while before my webapp was being expanded without any 
>> problem, now it is causing an OOME.
>> 
>> Of course this can be easily fixed by increasing the heap size but 
>> before going forward in the upgrade i'd like to know if anyone else 
>> have been experiencing something similar or if something in the 
>> expansion implementation  changed recently (i couldn't find anything 
>> in the release note)
>
>Can you provide any other information? Stack trace or heap dump? Is
>this
>regular heap or permgen? What are your heap settings?
>
>Is there anything else we should know about your web app? Do you have
>500 jar files in your lib directory? Do you cache a large dataset on
>startup?
>> 
>
>-chris
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Most likely the Jar scanning (which caches a lot of data during startup) is the 
cause. There is a patch to reduce the volume of cached data significantly in 
bugzilla at the moment. In the meantime, setting metadata-complete may help.

Mark

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