Java dump and core collection
Use this page to generate various Java™ dumps and cores from within the administrative console.
To view this administrative console page, click Troubleshooting > Java dumps and cores.
Select one or more of the listed servers, and click one of the following buttons to generate dumps. You can analyze dumps and cores using problem determination tools available for the IBM® Support Assistant.
Supported configurations: Generating a heap dump or a system dump is
not supported for a non-IBM Java virtual
machine (JVM). If you attempt to generate a heap dump or a system
dump using the administrative console against a non-IBM JVM, the following
message is displayed in the administrative console:
The Heap dump request to the server <server_name> failed because of the following reason:
Could not take single dump as Sun Microsystems Inc. is not supported.
orThe System dump request to the server <server_name> failed because of the following reason:
Could not take single dump as Sun Microsystems Inc. is not supported.
The Heap dump request to the server <server_name> failed because of the following reason:
Could not take single dump as HP-UX is not supported.
orThe System dump request to the server <server_name> failed because of the following reason:
Could not take single dump as HP-UX is not supported.
- Heap dump
- A heap dump is a snapshot of JVM memory. It shows live objects in the memory and references between them.
- Java core
- Use this button to investigate why a server is hanging or investigate messages in the logs that indicate a thread has not completed its work in the expected amount of time.
- System dump
- Use this button to generate system native dumps of the server process. These dumps can be quite large.