Difference between revisions of "SUNScholar/Prepare Ubuntu/S08"
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Latest revision as of 23:50, 9 June 2016
NEXT - STEP 9
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, 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
PREVIOUS - STEP 7
