Sue,

What are the specs of the machine you are running DSpace on? It's always good to compare notes... :)

I find that every few months, as our capacity grows, I have to allocate a few hundred more megabytes to Tomcat. Right now Tomcat's defaults look like this for us:

JAVA_OPTS="-Djava.awt.headless=true -Xmx768m -Xms768m -XX:MaxPermSize=256m"

Our machine is only 32 bit, and only has 2 gigs of RAM, so I'm starting to plan for a migration soon. On a semi-related note, I'll also plan to move to a 64-bit OS and possibly a multi-core system.

Thanks,

Alan

On 10/12/2011 05:35 PM, Thornton, Susan M. (LARC-B702)[LITES] wrote:

I periodically get this error and sometimes stopping and restarting your web server will at least temporarily solve this problem.

What memory size are you using? We use the following and rarely see this error anymore:

JAVA_OPTS="-Xms2048m -Xmx3072m -Xss512k -Dfile.encoding=UTF-8"

Hope this helps.

Best regards,

Sue

*/Sue Walker-Thornton/*

*/(757) 864-2368/*

*From:*Lewatle Phaladi [mailto:[email protected]]
*Sent:* Wednesday, October 12, 2011 4:59 AM
*To:* [email protected]
*Subject:* [Dspace-tech] Memory isues on Java

Dear Dspace Team

I have tried increasing memory size in java configuration file but I still get this error when I want to create image thumbnails, any idea on what I can do to erase this error for good?

-bash-3.00$ ./dspace filter-media

Exception: Java heap space

java.lang.OutOfMemoryError: Java heap space

        at java.awt.image.DataBufferByte.<init>(DataBufferByte.java:58)

at java.awt.image.ComponentSampleModel.createDataBuffer(ComponentSampleModel.java:397)

        at java.awt.image.Raster.createWritableRaster(Raster.java:938)

at javax.imageio.ImageTypeSpecifier.createBufferedImage(ImageTypeSpecifier.java:1056)

        at javax.imageio.ImageReader.getDestination(ImageReader.java:2879)

at com.sun.imageio.plugins.jpeg.JPEGImageReader.readInternal(JPEGImageReader.java:980)

at com.sun.imageio.plugins.jpeg.JPEGImageReader.read(JPEGImageReader.java:948)

        at javax.imageio.ImageIO.read(ImageIO.java:1422)

        at javax.imageio.ImageIO.read(ImageIO.java:1326)

at org.dspace.app.mediafilter.JPEGFilter.getDestinationStream(JPEGFilter.java:67)

at org.dspace.app.mediafilter.MediaFilterManager.processBitstream(MediaFilterManager.java:737)

at org.dspace.app.mediafilter.MediaFilterManager.filterBitstream(MediaFilterManager.java:561)

at org.dspace.app.mediafilter.MediaFilterManager.filterItem(MediaFilterManager.java:511)

at org.dspace.app.mediafilter.MediaFilterManager.applyFiltersItem(MediaFilterManager.java:479)

at org.dspace.app.mediafilter.MediaFilterManager.applyFiltersAllItems(MediaFilterManager.java:414)

at org.dspace.app.mediafilter.MediaFilterManager.main(MediaFilterManager.java:333)

        at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)

at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)

at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)

        at java.lang.reflect.Method.invoke(Method.java:597)

at org.dspace.app.launcher.ScriptLauncher.main(ScriptLauncher.java:183)

-bash-3.00$

Regards,

Lewatle

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--
Alan Orth
[email protected]
http://alaninkenya.org
http://mjanja.co.ke
"I have always wished for my computer to be as easy to use as my telephone; my wish 
has come true because I can no longer figure out how to use my telephone." -Bjarne 
Stroustrup, inventor of C++

------------------------------------------------------------------------------
All the data continuously generated in your IT infrastructure contains a
definitive record of customers, application performance, security
threats, fraudulent activity and more. Splunk takes this data and makes
sense of it. Business sense. IT sense. Common sense.
http://p.sf.net/sfu/splunk-d2d-oct
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