Apache Cassandra™ 2.0

Installing the JNA on SUSE Systems

Installing JNA can improve Cassandra memory usage. When installed and configured, Linux does not swap out the JVM, and thus avoids related performance issues.

Procedure

Install with the following commands:
# curl -o jna.jar -L
# https://github.com/twall/jna/blob/3.4.1/dist/jna.jar?raw=true 
# curl -o platform.jar -L https://github.com/twall/jna/blob/3.4.1/dist/platform.jar?raw=true 
# mv jna.jar /usr/share/java 
# mv platform.jar /usr/share/java