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From: Krist on 25 Feb 2010 21:04
Hi gurus,

I want to do heap dump analysis to find out what comsume our 3GB heap.
We areusing Linux and SUn JVM 1.5.0_15 64 bit

I try to use jmap, but it gave me this error :
Error attaching to process
sun.jvm.hotspot.debugger.DebuggerException..

Is his a bug or what is other way to dump the heap ?

Thank you for your help,
xtanto
From: John B. Matthews on 26 Feb 2010 05:36
In article
<1d252cb3-1edd-4726-a63a-d196276bb9fb(a)w27g2000pre.googlegroups.com>,
Krist <krislioe(a)gmail.com> wrote:

> I want to do heap dump analysis to find out what comsume our 3GB
> heap. We areusing Linux and SUn JVM 1.5.0_15 64 bit
>
> I try to use jmap, but it gave me this error :
> Error attaching to process
> sun.jvm.hotspot.debugger.DebuggerException..
>
> Is his a bug or what is other way to dump the heap ?

On my platform, jmap must be run with sufficient privileges to access
another JVM's heap. You might try su or sudo.

As an aside, I saw "java.lang.RuntimeException: gHotSpotVMTypes was not
initialized properly in the remote process; can not continue" when
attempting to jmap a program running inside NetBeans. I suspect NetBeans
may have modified the relevant data structure for its own purposes.

--
John B. Matthews
trashgod at gmail dot com
<http://sites.google.com/site/drjohnbmatthews>
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