[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index]

Java heap space

This archive contains answers to questions sent to Unidata support through mid-2025. Note that the archive is no longer being updated. We provide the archive for reference; many of the answers presented here remain technically correct, even if somewhat outdated. For the most up-to-date information on the use of NSF Unidata software and data services, please consult the Software Documentation first.

  • Subject: Java heap space
  • Date: Wed, 09 May 2007 13:37:58 +1000
Hi Ethan,

I've tried to use my test server again today, and have found that it's
getting a Java heap space problem.  I then restarted my server and it
can load the large dataset. However, if I refreshed the page, I get the
Java heap space problem.  

Ahh, I tried that restart/reload a few more times, and it seems like it
works for the first few loads, and then any large dataset will result in
the error.

Having said that, if I went back through the smaller dataset, TDS will
show smaller dataset fine. 

This is what I get in catalina.out:

2007-05-09T12:17:27.275 +1000 [   3495267][      97] ERROR -
thredds.servlet.CatalogServicesServlet - doGet req=
http://ngdev.sf.utas.edu.au:8080/thredds/catalogServices?catalog=http://ngdev.sf.utas.edu.au:8080/thredds/catalog/argo_csiro/catalog.xml
 got Exception
java.lang.OutOfMemoryError: Java heap space
2007-05-09T12:17:27.294 +1000 [   3495286][      97] ERROR -
thredds.servlet.ServletUtil - handleException
java.lang.OutOfMemoryError: Java heap space
java.lang.OutOfMemoryError: Java heap space


I tried to setup the remote management thing in tomcat without success,
so I'm afraid I can't give you more details until I can get that up and
running.

Cheers,

-Pauline.

On Mon, 2007-05-07 at 09:23 -0600, Ethan Davis wrote: 
> Hi Pauline,
> 
> Did the cache permissions solve the problem you were having with 
> scanning directories that contain large numbers of files? Was the 
> scanning to generate a catalog or was it an aggregation?
> 
> Ethan
> 
> Pauline Mak wrote:
> > HI Ethan,
> >
> > Yes, I've noticed that occasionally it will show an OurOfMemory error.  
> >
> > I'm currently running is 
> >
> > THREDDS Data Server Version 3.14.02 Build Date = 2007-03-19 23:50:44
> > JVM is java version "1.5.0_09"
> > Tomcat is: 5.5
> >
> > Wow, the oddest thing just happened.  I noticed that catalina.out were
> > printing out messages saying that tomcat had problems trying to access
> > cache.log.  So I went in and change the ownership of all cache* and then
> > THREDDS was able to load those big datasets without problems.  Oops,
> > sorry!  I should read the log more carefully!
> >
> > Thanks,
> >
> > -Pauline.
> >
> >   
> 

===============================================================================
To unsubscribe thredds, visit:
http://www.unidata.ucar.edu/mailing-list-delete-form.html
===============================================================================