Welcome to Experts Exchange

Add your voice to the tech community where 5M+ people, just like you, are talking about what matters.

  • Help others & share knowledge
  • Earn cash & points
  • Learn & ask questions
Solved

JVM Memory Profiling tool

Posted on 2006-06-19
9
887 Views
Last Modified: 2008-01-09
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??
 
0
Comment
Question by:mte01
9 Comments
 
LVL 3

Assisted Solution

by:runa_paathak
runa_paathak earned 40 total points
ID: 16934064
Use Java Memory Profiler:http://www.khelekore.org/jmp/
0
 
LVL 4

Expert Comment

by:Yagantappa
ID: 16934066
0
 
LVL 4

Expert Comment

by:Yagantappa
ID: 16934136
0
Networking for the Cloud Era

Join Microsoft and Riverbed for a discussion and demonstration of enhancements to SteelConnect:
-One-click orchestration and cloud connectivity in Azure environments
-Tight integration of SD-WAN and WAN optimization capabilities
-Scalability and resiliency equal to a data center

 
LVL 3

Assisted Solution

by:Kanti
Kanti earned 50 total points
ID: 16934161
0
 
LVL 30

Assisted Solution

by:Mayank S
Mayank S earned 60 total points
ID: 16934188
0
 
LVL 3

Author Comment

by:mte01
ID: 16934344
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??
0
 
LVL 4

Assisted Solution

by:Yagantappa
Yagantappa earned 80 total points
ID: 16934381
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
0
 
LVL 10

Accepted Solution

by:
rajesh_bala earned 170 total points
ID: 16935874
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.
0
 
LVL 3

Author Comment

by:mte01
ID: 16941862
Guys,

I solved it by using an internal memory profiling tool inside WL's admin console..thanks for your help anyways!
0

Featured Post

Networking for the Cloud Era

Join Microsoft and Riverbed for a discussion and demonstration of enhancements to SteelConnect:
-One-click orchestration and cloud connectivity in Azure environments
-Tight integration of SD-WAN and WAN optimization capabilities
-Scalability and resiliency equal to a data center

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

Suggested Solutions

Title # Comments Views Activity
how to add new optional parameter to JSP 1 49
oracle 11g 23 107
by zero exception 10 52
Java Restore security prompts not working 10 60
After being asked a question last year, I went into one of my moods where I did some research and code just for the fun and learning of it all.  Subsequently, from this journey, I put together this article on "Range Searching Using Visual Basic.NET …
Java had always been an easily readable and understandable language.  Some relatively recent changes in the language seem to be changing this pretty fast, and anyone that had not seen any Java code for the last 5 years will possibly have issues unde…
Viewers learn about the “while” loop and how to utilize it correctly in Java. Additionally, viewers begin exploring how to include conditional statements within a while loop and avoid an endless loop. Define While Loop: Basic Example: Explanatio…
Viewers will learn one way to get user input in Java. Introduce the Scanner object: Declare the variable that stores the user input: An example prompting the user for input: Methods you need to invoke in order to properly get  user input:

860 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question