HeapDumpOnOutOfMemoryError

[Todd Baxter]

The -XX:+HeapDumpOnOutOfMemoryError creates a heap dump on Out of memory.

The file is called java_pixXXX.hprof

WHERE IS THIS FILE CREATED? Relative to the Java install?
Can I specify where to create this file?

Any help appreciated.

[Martijn Verburg]

Hi there,

Se http://java.sun.com/javase/6/webnotes/trouble/TSG-VM/html/gdaog.html

Cheers,
Martijn

[Greg Bishop]

I've noticed that on JDK 1.5 if clean up (GC) occurs (you catch the out of memory exception and then free up the objects in question),( and then allocate another object forcing GC) the next occurrence does not generate another heap dump (I want one each time).

Is there some way to make it do this again and again?

Thanks,
-Greg Bishop

[William Brogden]

1. OutOfMemoryError is an ERROR not and Exception. It descends from java.lang.VirtualMachineError.
2. I would certainly not rely on the state of the program after an Error is thrown.

Bill

[Chandra Varagani]

the *hprof file should be created in DOMAIN_HOME by default. and you can customise the path as well like -XX:HeapDumpPath=/folder1/folder2/log etc.