Tools for WAS

1. Classloader Analyzer

The Classloader Analyzer offers these features:

• Calculation of the number of classloaders, classes, and loaded libraries

• Automatic detection of classloader leak suspects

• Suspect view with total number of classes and loaded classes

• Classloader and class tree view

• Classloader view with loaded classes

• Library tree view for classloaders

• Automatic detection of javacore and classloader trace

• Automatic detection of suspect classes loaded multiple times

• Jar and class tree view

2.Garbage Collection and Memory Visualizer

• Monitor and fine tune Java heap size and garbage collection performance

• Flag possible memory leaks

• Size the Java heap correctly

• Select the best garbage collection policy 

• Verbose GC logs

• -Xtgc output

• native memory logs (output from ps, svmon and perfmon)

3.HeapAnalyzerAnalyzing Java heap dumps to troubleshoot problems such as:

• Memory leaks

• Excessive heap usage

Description: IBM HeapAnalyzer analyzes Java heap dumps and produces a summary report identifying leak suspects and showing statistics about the heap such as number of objects, number of references, number of classes, heap size and so on. It then lets you search and visually inspect the heap with graphical and tabular views.

4.Memory AnalyzerAnalyzing system dumps and Java heap dumps to help you:

• Troubleshoot memory leaks

• Understand the architecture of your Java application through footprint analysis

• Improve performance by tuning memory footprint and optimizing Java collections and cache usage

• Customize analysis with additional plug-ins and reports\

5. Thread and Monitor Dump Analyzer for JavaAnalyzing Java core files to help you identify threading problems such as:

• Hangs

• Deadlocks

• Resource contention

• Bottlenecks