Comments on: Finding Memory Leaks in Java Apps

By: Offline Memory Profiling « SourceForge.net: Project drjava

Offline Memory Profiling « SourceForge.net: Project drjava — Sat, 24 Oct 2009 22:24:37 +0000

[...] I want to discuss a little bit how I spotted this problem: There are two tools that Java provides, jmap and jhat (really starting with JDK6; unfortunately not supported on the Mac). jmap dumps the entire heap of a JVM into a file. jhat then analyzes that file and provides a HTML interface to browse the results. For more information, look at this article: Finding Memory Leaks in Java Apps. [...]

By: bozena

bozena — Fri, 10 Jul 2009 06:43:24 +0000

How to change the server parameters with Tomcat?
Actually, I am asking about the MBeans part and later…

By: Shahryar Ghazi

Shahryar Ghazi — Wed, 29 Apr 2009 23:07:26 +0000

good job

By: John’s Blog » Java memory leaks

John’s Blog » Java memory leaks — Sat, 11 Apr 2009 02:14:32 +0000

[...] http://blog.emptyway.com/2007/04/02/finding-memory-leaks-in-java-apps/ [...]

By: Yuri

Yuri — Fri, 03 Apr 2009 07:41:05 +0000

That last part should have been:
Go to the MBeans tab en open:
com.sun.management
HotSpotDiagnostic
Operations
dumpHeap

(so you need to drill down just a bit further until you’ve opened the dumpHeap operation).

Fill in ‘heapdump.bin’ in the ‘String’ inputbox en press ‘dumpHeap’.
Now go the directory where jboss was started (usually the ‘bin’ directory of JBoss) en open heapdump.bin with MAT.

By: Yuri

Yuri — Fri, 03 Apr 2009 07:39:12 +0000

@nanao:
Make sure JBoss is started with the following parameters:

-Dcom.sun.management.jmxremote.port=9998
-Dcom.sun.management.jmxremote.authenticate=false
-Dcom.sun.management.jmxremote.ssl=false

Then: start jconsole en connect to ‘remote process’ with ‘localhost:9998′

Go to the MBeans tab en open:
com.sun.management
HotSpotDiagnostic
Fill in ‘heapdump.bin’ in the ‘String’ inputbox en press ‘dumpHeap’.
Now go the directory where jboss was started (usually the ‘bin’ directory of JBoss) en open heapdump.bin with MAT.

Good luck!

By: nanao

nanao — Mon, 23 Mar 2009 17:52:20 +0000

hello, i’m trying to find where memory leak is for a web app that is deployed by jboss or knopflerfish, when i run jps i don’t see any pid; how to proceed?

By: A Concurrent Affair » Blog Archive » Offline Memory Profiling

A Concurrent Affair » Blog Archive » Offline Memory Profiling — Tue, 10 Mar 2009 20:35:53 +0000

By: Vetrivel R

Vetrivel R — Wed, 11 Feb 2009 23:40:18 +0000

Good stuff, wakes up the latest techs to probe java memory leaks.

By: Naveen Bethur

Naveen Bethur — Thu, 29 Jan 2009 02:46:58 +0000

Thanks a lot…..