SUNScholar/Prepare Ubuntu/S08
Revision as of 17:07, 25 May 2016 by Hgibson (talk | contribs) (→Step 8.2 Increase number of open files available)
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Contents
Step 8. Configure the environment variables
Step 8.1 Java environment settings for other java web applications
To setup the environment variables for other java applications (such as the Handle and SOLR servers), type the following:
sudo nano /etc/environment
Copy and paste the following to the bottom of the file.
JAVA_HOME="/usr/lib/jvm/default-java" JAVA_OPTS="-Djava.awt.headless=true -Xmx2048m -Xms1024m -Dfile.encoding=UTF-8"
Save and exit the file.
Step 8.2 Increase number of open files available
Open the following file as follows:
sudo nano /etc/security/limits.conf
Add the following to the bottom of the file:
* hard nofile 65536 * soft nofile 65536
Save and exit the file.
Make sure to check the files open parameter with the next computer reboot by typing the following as the root user:
ulimit -n
Step 8.3: Setup file creation permissions
nano $HOME/.bashrc
Add the following to the bottom of the file
umask 002
Save and exit the file.
References
- http://en.wikipedia.org/wiki/Environment_variable
- http://wiki.apache.org/tomcat/FAQ/Memory
- http://en.wikipedia.org/wiki/Java_performance#Memory_usage
- http://javaperformancetuning.com
- http://wiki.lib.sun.ac.za/index.php/SUNScholar/Optimisations
- https://wiki.duraspace.org/display/DSDOC3x/Performance+Tuning+DSpace
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