In my cassandra-env.sh for 1.1.6, there is no setting regarding mx4j at all. I simply dropped the mx4j jar to the lib folder and enable jmx from cassandra-env.sh, I can connect to the default mx4j port 8081 with no problem. I guess without the mx4j setting, it uses default port. If youi need to connect using other port, you might have to add the settings mentioned by Michal, I didn't try it myself though.
Thanks. -Wei ________________________________ From: Michal Michalski <mich...@opera.com> To: user@cassandra.apache.org Sent: Monday, November 12, 2012 3:37 AM Subject: Re: monitor cassandra 1.1.6 with MX4J Hmm... It looks like it wasn't merged at some time (why?), because I can see that appropriate lines were present in a few branches. I didn't check if it works, but looking at git history tells me that you could try modifying cassandra-env.sh like this: Add this somewhere & configure: # To use mx4j, an HTML interface for JMX, add mx4j-tools.jar to the lib/ directory. # By default mx4j listens on 0.0.0.0:8081. Uncomment the following lines to control # its listen address and port. MX4J_ADDRESS="-Dmx4jaddress=0.0.0.0" MX4J_PORT="-Dmx4jport=8081" And then add this: JVM_OPTS="$JVM_OPTS $MX4J_ADDRESS" JVM_OPTS="$JVM_OPTS $MX4J_PORT" somewhere in the end of the file where JVM_OPTS is appended. Regards, Michał W dniu 12.11.2012 12:03, Francisco Trujillo Hacha pisze: > I am trying to monitor a single Cassandra node using: > > http://wiki.apache.org/cassandra/Operations#Monitoring_with_MX4J > > But I can't find the variables indicated (url and port) in the > cassandra-env.sh > > Where coulde be? >
