Hi Alan


Thanks for your positive inputs.



Regards,

Lewatle



From: Alan Orth [mailto:alan.o...@gmail.com]
Sent: 12 October 2011 04:49 PM
To: dspace-tech@lists.sourceforge.net
Subject: Re: [Dspace-tech] Memory isues on Java



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:lewatle.phal...@wits.ac.za]
Sent: Wednesday, October 12, 2011 4:59 AM
To: dspace-tech@lists.sourceforge.net
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(ComponentSampleMode
l.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(JPEGImageReade
r.java:980)

        at
com.sun.imageio.plugins.jpeg.JPEGImageReader.read(JPEGImageReader.java:9
48)

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

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

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

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

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

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

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

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

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

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

        at
sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.jav
a:39)

        at
sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessor
Impl.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
alan.o...@gmail.com
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++

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is intended for the addressee only. It is confidential. If you have received 
this communication in error, please notify us immediately and destroy the 
original message. You may not copy or disseminate this communication without 
the permission of the University. Only authorized signatories are competent to 
enter into agreements on behalf of the University and recipients are thus 
advised that the content of this message may not be legally binding on the 
University and may contain the personal views and opinions of the author, which 
are not necessarily the views and opinions of The University of the 
Witwatersrand, Johannesburg. All agreements between the University and 
outsiders are subject to South African Law unless the University agrees in 
writing to the contrary.</font></p></html>
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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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