Solved

JVM Memory Profiling tool

Posted on 2006-06-19
9
879 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
 
LVL 3

Assisted Solution

by:Kanti
Kanti earned 50 total points
ID: 16934161
0
Is Your Active Directory as Secure as You Think?

More than 75% of all records are compromised because of the loss or theft of a privileged credential. Experts have been exploring Active Directory infrastructure to identify key threats and establish best practices for keeping data safe. Attend this month’s webinar to learn more.

 
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

Is Your Active Directory as Secure as You Think?

More than 75% of all records are compromised because of the loss or theft of a privileged credential. Experts have been exploring Active Directory infrastructure to identify key threats and establish best practices for keeping data safe. Attend this month’s webinar to learn more.

Question has a verified solution.

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

Suggested Solutions

Title # Comments Views Activity
Understanding websocket example in spring 1 57
@SBGen Method 3 38
DO we need Java installed on a Windows PC and WHY ? 13 98
Way to decrease size of apk file 9 45
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…
Introduction This article is the first of three articles that explain why and how the Experts Exchange QA Team does test automation for our web site. This article explains our test automation goals. Then rationale is given for the tools we use to a…
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:
This tutorial covers a practical example of lazy loading technique and early loading technique in a Singleton Design Pattern.

896 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

Need Help in Real-Time?

Connect with top rated Experts

15 Experts available now in Live!

Get 1:1 Help Now