Collecting Java dumps and core files using the administrative console

You can use the Java runtime environment to create dump and core files to help with troubleshooting. You can use the administrative console to trigger the creation of these dumps and core files.

About this task

New feature New feature: The Java virtual machine (JVM) is capable of producing Java dump and core files to aid in troubleshooting. You can use heap dump and system dump files to help you diagnose memory-related problems, such as memory leaks. You can use Java core files to help you diagnose problems where the CPU is persistently 100% busy, when threads are hanging, or where threads are in a deadlock.newfeat
Avoid trouble Avoid trouble: The process of generating dump and core files can have a noticeable performance impact on your system that can last for many seconds or minutes. If necessary, use your test and development environments to better understand the impact of generating dump and core files.gotcha
Supported configurations Supported configurations: Generating a heap dump or a system core is not supported for a non-IBM JVM. If you attempt to generate a heap dump or a system core using the administrative console against a non-IBM JVM, the following message is displayed in the administrative console:
Server <server_name> is stopped or not responding. Heap dump cannot be performed on a stopped server.
sptcfg

Procedure

  1. In the navigation pane, click Troubleshooting > Java dumps and cores.
  2. Select the server or servers you need to collect a dump or core from.
  3. Click System Dump or Java Core or Heap Dump depending on your need.

Results

The system dump or heap dump or Java core is created and stored in the profile root directory of the server from which you requested the dump or core.



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Last updatedLast updated: Sep 19, 2011 5:16:49 PM CDT
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