I had a discussion with a developer here and he had me change the startup 
script to:

CATALINA_OPTS="-Djava.library.path=/home/jfclere/jakarta-tomcat-connectors/jni/native/.libs
 -Xmx4096M -Xms2048M -Dfile.encoding=UTF-8 -XX:+UseConcMarkSweepGC 
-XX:+CMSPermGenSweepingEnabled -XX:+CMSClassUnloadingEnabled 
-XX:MaxPermSize=512M"

It seems fine but off course I have to keep monitoring!

I will appreciate if the list could have a discussion around the optimum memory 
allocations for this as well as the Postgresql.

My situation is: 24 Gb on board.

As you can see -Xmx4096M -Xms2048M for the startup as well as MaxPermSize=512M 
for Perm size.

Also my postgresql.conf is shared_buffers=1024Mb

I see it mentioned that one can take half of onboard mem for the Catalina?

Any thoughts? Will it have any advantages or even disadvantages? (Don’t want to 
waste memory!)

Thanks

Barrie Swanepoel
Systems Administrator
University of Johannesburg
Library and Information Centre
PO Box 524
Auckland Park
Johannesburg
Republic of South Africa
Tel: +27 11 559 2347
Cell: 082 565 7743




-----Original Message-----
From: [email protected] [mailto:[email protected]] On Behalf Of helix84
Sent: 08 November 2011 10:57 AM
To: Swanepoel, Barrie
Cc: dspace-tech
Subject: Re: [Dspace-tech] 1.7.2 memory errors

I'm not familiar with the jsvc setup you're using, so I'm not sure which one of 
those java/jsvc processes _actually_ runs dspace. Just to make sure, if you 
already didn't do it, restart the whole server to get rid of any processes from 
your previous configuration. Then you should be fine.

You probably know that now the correct way for you to start/stop/restart dspace 
is to use "service dspace start", "service dspace start", "service dspace 
start" respectively.

Regards,
~~helix84

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