Graphite 0.9.12 - Carbon Cache Upstart

While implementing graphite I found many examples of upstart scripts for the carbon cache agents. However, each of those examples failed to work on a system using upstart version 0.6.5. Most of them would start carbon up, then lose the pid and in turn lose the ability to stop and restart the process. I wanted upstart to start, restart and stop carbon cache agent processes, so I ended using the --debug option. (maybe that's a hack, but it does work)

Below is a working upstart script for starting, restarting and stopping carbon cache.

description "Graphite Carbon Cache"

start on runlevel [2345]
stop on runlevel [!2345]

env CARBON_CACHE=/opt/graphite/bin/
env PIDFILE=/opt/graphite/storage/logs/

kill timeout 5

post-stop exec $CARBON_CACHE --pidfile=$PIDFILE --debug stop

  ulimit -n 65000
  exec $CARBON_CACHE --pidfile=$PIDFILE --debug start >> /opt/graphite/storage/log/carbon-cache/console.log 2>&1
end script