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JVM Memory Profiling tool

Hey experts,

 I am running a Java Web Application using Web Logic, and I am getting an OutOfMemory error. I am sure that this is a memory issue since when the file that joost's utility classes is generating (in that place of the application) is less than 5MB a memory problem does not occur. I need a memory profiling tool to see the memory size that is trying to be allocated by the JVM...any help on where to find such tool??
 
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mte01
Asked:
mte01
5 Solutions
 
runa_paathakCommented:
Use Java Memory Profiler:http://www.khelekore.org/jmp/
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YagantappaCommented:
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Mayank SAssociate Director - Product EngineeringCommented:
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mte01Author Commented:
Guys, since my application is a complex one and it's all configured in Web Logic (i.e. it's not just a simple application that you run from an IDE)...what would be the best tool from the ones above??
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YagantappaCommented:
JMemProf can be deployed in web containers.
JProfiler can be used in many application server. For details see the following link
http://www.ej-technologies.com/products/jprofiler/java-profiler-J2EE.html
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rajesh_balaCommented:
1. Ensure if its a real memory leak or you need more heap for processing [ both are different ]
2. Since you are using Weblogic, try using JRA - Java Runtime Analyzer provided in JRockit JVM. Its already available in weblogic.

Just enable -Xmanagement and try to use JRA. Or find the tutorials of using it in weblogic documentation site.

If the heap after GC keeps increasing, you might have a leak. The best profiler i would recommend is OptimizeIt if its a complex application..

JProbe is too noisy and JProfiler sucks big time. This is based my experience of 4 years of performance tuning.
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mte01Author Commented:
Guys,

I solved it by using an internal memory profiling tool inside WL's admin console..thanks for your help anyways!
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