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WebSphere - Jython command to view an Application's memory usage

Using IBM WebSphere Application Server version 8.0.0.1, is there a way to view the memory usage of a running application on the server? Something with Jython or Jacl? I can view the memory usage of a ...
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661 views

java 7: should users be aware of changes in heap memory handling?

After installing the latest Java 7 Development Kit (Java SE 7u11) on my Windows 7 Professional 32bit PC with 4Gb RAM, I noticed I can't allocate much memory for Tomcat. Whereas these memory settings ...
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355 views

“Error occurred during initialization of VM” in linux server

I am trying to run java command in linux server it was running well but today when I tried to run java I got some error- Error occurred during initialization of VM Could not reserve enough ...
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JVM memory initializazion error after windows update

We have three Windows Server 2003 with 2 GB RAM. Server1 tomcat 5.5.25 jvm version SUN 1.6.0_11-b03 Server2 tomcat 5.5.25 jvm version SUN 1.6.0_14-b08 ...
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3k views

Increasing Java's heapspace in Tomcat startup script

I want to increase my heap size when using Tomcat. I was told to add this line export CATALINA_OPTS=-Xms16m -Xmx256m; In to the startup.sh script - I did so (at the beginning) but got the error ...
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Alternatives for heapdumps creation with higher performance than jmap?

I have to create heapdumps, which works nice with jmap. My problem is, that jmap takes very long to create the heapdump file. Especially when the heap is getting bigger (> 1GB) it is taking too long. ...