Hi George,
We are running 1.4.2, however with Sun Webserver7, and Postgres 8.2
and the only time we see Java Heap Space errors are in filter-media.
Here is what we have in our dsrun script:
java -Xmx3072m -Dfile.encoding=UTF-8 -classpath $FULLPATH "$@"
and here are some parameters from our postgresql.conf file:
max_connections = 300 (I changed it from 100 to 300 when we kept getting
errors saying, "connection limit exceeded for non-superusers" - haven't
seen the error since)
shared_buffers = 32MB
max_fsm_pages = 300000
Hope this helps!!
Sue
Sue Walker-Thornton
ConITS Contract
NASA Langley Research Center
</></>Integrated Library Systems Application & Database Administrator
130 Research Drive
Hampton, VA 23666
Office: (757) 224-4074
Fax: (757) 224-4001
Pager: (757) 988-2547
Email: [email protected] <mailto:[email protected]>
-----Original Message-----
From: George Kozak [mailto:[email protected]]
Sent: Wednesday, December 10, 2008 8:53 PM
To: [email protected]
Subject: [Dspace-tech] I need help with memory problems
Hi...
In October I moved my DSpace 1.4.2 instance to a new server which is
faster and has more memory. I upgraded my Apache to 2.2.4, added
mod_jk and Tomcat 5.5.26.
My old instance worked fine with Apache 1.3.26, mod_webapp and tomcat
4.0.6. In both cases I was and am using PostGreSQL 8.3.
However, ever since moving to the new server, I have had tomcat crashes
with
java.lang.OutOfMemoryError: Java heap space
This seems to happen when we are hit by harvesters. I have tried a
number of things, but all that I have done is delay the
crashes. They happen...just less frequently. I am at my wits
end! Does anyone have any suggestions?
In PostGreSQL, I have max_connections = 100 and shared_buffers = 32MB
and max_fsm_pages = 204800
Here is my Tomcat configuration:
JAVA_OPTS="-server -Xms1024m -Xmx2048m -Xmn64m -Dfile.encoding=UTF-8
-XX:+UseParallelGC -verbose:gc
-Xloggc:/dspace/dspace/log/gc.log -XX:+HeapDumpOnOutOfMemoryError
-XX:PermSize=1024m -XX:MaxPermSize=1024m -XX:-UseGCOverheadLimit"
Here is robots.txt:
User-agent: *
Crawl-delay: 10
User-agent: *
Disallow: /browse-author
Disallow: /items-by-author
Disallow: /browse-date
Disallow: /browse-subject
Disallow: /bitstream
***************************
George Kozak
Coordinator
Web Development and Management
Digital Media Group
501 Olin Library
Cornell University
607-255-8924
***************************
[email protected]
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