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Munin plugins for apache cassandra.
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README.md
aes.conf
compactions_bytes.conf
compactions_pending.conf
flush_stage_pending.conf
hh_pending.conf
jmx_
jmxquery.jar
jvm_cpu.conf
jvm_memory.conf
ops_pending.conf
standard1_keycache.conf
standard1_latency.conf
standard1_livesize.conf
standard1_ops.conf
standard1_rowcache.conf
standard1_sstables.conf
storageproxy_latency.conf
storageproxy_ops.conf

README.md

Cassandra Munin Plugins

These plugins are configurations for something called jmxquery that I found somewhere. Unfortunately, though, I forget where.

Installation

Make sure all the files from this repo are in the same directory and that jmx_ is executable. Then in /etc/munin/plugins, create a symlink named after each of the plugin configurations to the jmx_ executable. The symlink needs to be an absolute path, not relative, or jmx_ won't be able to parse it correctly.

Copy and modify the standard1* metrics for the columnfamlies you wish to monitor. (These should include system.HintsColumnFamily, in production.)

If you take a look at the .conf files, it should be fairly straightforward to figure out how to create your own.

If you have JMX running on a non-standard port (something other than 8080), you can set it in your munin config like this:

[cassandra_] env.jmxurl service:jmx:rmi:///jndi/rmi://localhost:YOURPORTHERE/jmxrmi

Credits

Configs by James Golick and Jonathan Ellis. I wish I knew who wrote jmxquery so I could credit them here.

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