Cassandra upstart job

gistfile1.txt

description "Cassandra is a distributed (peer-to-peer) system for the management and storage of structured data."

author "nikola.petrov@ontotext.com"


start on filesystem
stop on runlevel[016]



env NAME=cassandra
env PIDFILE=/var/run/$NAME.pid
env SCRIPTNAME=/etc/init.d/$NAME
env CONFDIR=/etc/cassandra
env JSVC=/usr/bin/jsvc
env WAIT_FOR_START=20
env CASSANDRA_HOME=/usr/share/cassandra

respawn
# if we have respawned once in the last 20 seconds then just stop.
respawn limit 2 20

setuid cassandra
setgid cassandra

console log

chdir /

limit nofile 100000 100000
limit memlock unlimited unlimited

pre-start script

    [ -e /usr/share/cassandra/apache-cassandra.jar ] || exit 0
    [ -e /etc/cassandra/cassandra.yaml ] || exit 0
    [ -e /etc/cassandra/cassandra-env.sh ] || exit 0

end script

script
    # Get variables from here please. Setuid cannot be told to do a new login
    # as the specified user :(
    . /etc/profile
    cassandra_home=`getent passwd cassandra | awk -F ':' '{ print $6; }'`


    [ -r /etc/default/$NAME ] && . /etc/default/$NAME

    # Read Cassandra environment file.
    . /etc/cassandra/cassandra-env.sh

    # setup the classpath. TODO: Maybe we can reuse /usr/share/cassandra/cassandra.in.sh
    CLASSPATH="$EXTRA_CLASSPATH"
    for j in /usr/share/$NAME/lib/*.jar; do
	[ "x$CLASSPATH" = "x" ] && CLASSPATH=$j || CLASSPATH=$CLASSPATH:$j
    done
    for j in /usr/share/$NAME/*.jar; do
	[ "x$CLASSPATH" = "x" ] && CLASSPATH=$j || CLASSPATH=$CLASSPATH:$j
    done

     echo $CLASSPATH
    echo

    # use JNA if installed in standard location
    [ -r /usr/share/java/jna.jar ] && CLASSPATH="$CLASSPATH:/usr/share/java/jna.jar"


    # Include the conf directory for purposes of log4j-server.properties, and
    # commons-daemon in support of the daemonization class.
    CLASSPATH="$CLASSPATH:$CONFDIR:/usr/share/java/commons-daemon.jar"

 

    # think if we really want the pidfile :?
    #-pidfile $PIDFILE \

    #   -errfile "&1" \
    #   -outfile /var/log/$NAME/output.log \
    java \
    -cp $CLASSPATH \
    -Dlog4j.configuration=log4j-server.properties \
    -Dlog4j.defaultInitOverride=true \
    -Dcassandra-foreground=yes \
    -XX:HeapDumpPath="$cassandra_home/java_`date +%s`.hprof" \
    -XX:ErrorFile="$cassandra_home/hs_err_`date +%s`.log" \
    $JVM_OPTS \
    org.apache.cassandra.service.CassandraDaemon >> /var/log/cassandra/output.log 2>&1



end script

post-start script
    for tries in `seq $WAIT_FOR_START`; do
        sleep 1
        nodetool status && exit 0
    done
end script