http://www.datastax.com/support-forums/topic/jna-and-mx4j Software, Support, and Training for Apache Cassandra en-US Thu, 20 Jun 2013 09:52:23 +0000 http://bbpress.org/?v=1.0.3 q http://www.datastax.com/support-forums/search.php http://www.datastax.com/support-forums/topic/jna-and-mx4j#post-662 Fri, 11 Nov 2011 23:13:34 +0000 zznate 662@http://www.datastax.com/support-forums/ <p>Both are optional packages. JNA is listed as a "Recommends" dependency in DSE as it is with the stock Apache Cassandra packages. It is recommended to install on production machines as it provides access to native memory and IO functions for higher performance and access to off-heap caching. </p> <p>libmx4j is only required if you would like to expose the JMX attributes via HTTP directly from Cassandra is detailed here: <a href="http://wiki.apache.org/cassandra/Operations#Monitoring_with_MX4J" rel="nofollow">http://wiki.apache.org/cassandra/Operations#Monitoring_with_MX4J</a></p> <p>Please let us know if you have any more questions. </p> http://www.datastax.com/support-forums/topic/jna-and-mx4j#post-656 Fri, 11 Nov 2011 16:51:17 +0000 Anonymous 656@http://www.datastax.com/support-forums/ <p>Is this step still required for dse-1.0-3?<br /> sudo aptitude install libjna-java libmx4j-java</p> <p>If not, why?<br /> Is it because they have already been included as part of the package install here:<br /> <a href="http://www.datastax.com/docs/1.0/datastax_enterprise/install_dse_packages#install-dse-pkg" rel="nofollow">http://www.datastax.com/docs/1.0/datastax_enterprise/install_dse_packages#install-dse-pkg</a></p> <p>If they are not included, which directories should they be installed at? Can I use the instructions here:<br /> <a href="https://sites.google.com/a/techlabs.accenture.com/cassandra/home/installcassandra07" rel="nofollow">https://sites.google.com/a/techlabs.accenture.com/cassandra/home/installcassandra07</a> </p>