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SAP Memory Analyzer problem

Posted on Jan 09, 2008 at 03:22 PM 9 Views

Hi All,

I tried to use Memory Analyzer 1.1 on a heap dump generated in WAS when I got an OOM exception and the .hprof file could not be opened and a alert box saying that a NullPointer Exception had happened. Can you please advice as to what to do.

Regards,

Novik

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  • author's profile photo Andreas Buchen
    Andreas Buchen
    Posted on Jan 09, 2008 at 03:28 PM
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    Hi Novik,

    can you post the NullPointerException (as an attachment)?

    Kind regards,

    - Andreas.

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    • Andreas Buchen Andreas Buchen
      Jan 17, 2008 at 04:40 PM

      Well, let me give you a quick follow-up about this posting:

      hprof originally is an agent which can write memory maps from a running VM. As such, it can also run on IBM VMs, however, it produces only a textual output which (a) is very slow to generate and (b) does not contain all data necessary for the analysis.

      So to be more precise, the Memory Analyzer works with hprof formatted binary heap dumps. These heap dumps are written by current Sun, HP and SAP virtual machines. Check our Wiki pages for the concrete version numbers.

      In this particular dump, a IBM VM was used and the output not readable.

      - Andreas.

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