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Enable JMX Metrics in Flume 1.3x

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As you know, Flume supports Ganglia (version 3 and above) to collect report metrics. The details are described in our documentation  ( 1 ) . Now I'll describe how do you use JMX reporting (to integrate metrics into other monitoring systems or monitor flume directly via Java's builtin JMX console (2)). That's pretty easy - choose a port which is free on your server and not firewall blocked. First, enable JMX via flume's env.sh ($FLUME_HOME/conf/flume-env.sh) and uncomment / add / edit the line starting with JAVA-OPTS: JAVA_OPTS="-Xms100m -Xmx200m -Dcom.sun.management.jmxremote -Dcom.sun.management.jmxremote.port=54321 -Dcom.sun.management.jmxremote.authenticate=false -Dcom.sun.management.jmxremote.ssl=false" Of course, restart all running agents.  Now point jconsole to Flume: jconsole YOUR_HOSTNAME:  54321    will start a X11 Java window: which monitors your Flume installation.  Links (1)  http://flume.apache.org/FlumeUserGui