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Re: Exception - Java heap space

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Roedy Green wrote:
> Magnus Warker wrote, quoted or indirectly quoted someone who said :
>>OutOfMemoryError
> 
> I presume you have no problem understanding what "out of memory"
> means.  You want to know WHY this happened.
> 
> 1. perhaps your problem is too big for the amount of RAM.  Change the
> memory assignments on the java.exe command line. See
> http://mindprod.com/jgloss/javaexe.html
> 
> 2. Perhaps you are packratting, holding on to objects you don't really
> need.  See http://mindprod.com/jgloss/packratting.html
> 
> 3. You need a tool to figure out what is happening, letting you
> monitor how many objects there are of various types. see
> http://mindprod.com/jgloss/profiler.html

Useful standard tools for memory woes:

http://docs.oracle.com/javase/7/docs/technotes/tools/index.html#monitor
http://docs.oracle.com/javase/7/docs/technotes/tools/share/jstat.html
http://docs.oracle.com/javase/7/docs/technotes/tools/share/jhat.html

-- 
Lew

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Exception - Java heap space Magnus Warker <magnux@mailinator.com> - 2012-09-14 23:01 +0200
  Re: Exception - Java heap space Robert Klemme <shortcutter@googlemail.com> - 2012-09-14 23:09 +0200
    Re: Exception - Java heap space Lew <lewbloch@gmail.com> - 2012-09-14 14:19 -0700
      Re: Exception - Java heap space Daniel Pitts <newsgroup.nospam@virtualinfinity.net> - 2012-09-14 15:06 -0700
  Re: Exception - Java heap space Roedy Green <see_website@mindprod.com.invalid> - 2012-09-16 08:23 -0700
    Re: Exception - Java heap space Lew <lewbloch@gmail.com> - 2012-09-16 16:58 -0700
  Re: Exception - Java heap space Kevin McMurtrie <mcmurtrie@pixelmemory.us> - 2012-09-18 22:25 -0700

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