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@douglasjarquin
Created June 12, 2013 23:00
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A mongos init script for Amazon Linux
#!/bin/bash
# mongos - Startup script for mongos
# chkconfig: 35 85 15
# description: Mongo is a scalable, document-oriented database.
# processname: mongos
# config: /etc/mongos.conf
# pidfile: /var/run/mongo/mongos.pid
. /etc/rc.d/init.d/functions
# things from mongos.conf get there by mongos reading it
# NOTE: if you change any OPTIONS here, you get what you pay for:
# this script assumes all options are in the config file.
CONFIGFILE="/etc/mongos.conf"
OPTIONS=" -f $CONFIGFILE"
SYSCONFIG="/etc/sysconfig/mongos"
# FIXME: 1.9.x has a --shutdown flag that parses the config file and
# shuts down the correct running pid, but that's unavailable in 1.8
# for now. This can go away when this script stops supporting 1.8.
DBPATH=`awk -F= '/^dbpath=/{print $2}' "$CONFIGFILE"`
PIDFILE=`awk -F= '/^dbpath\s=\s/{print $2}' "$CONFIGFILE"`
mongos=${MONGOS-/usr/bin/mongos}
MONGO_USER=mongod
MONGO_GROUP=mongod
if [ -f "$SYSCONFIG" ]; then
. "$SYSCONFIG"
fi
# Handle NUMA access to CPUs (SERVER-3574)
# This verifies the existence of numactl as well as testing that the command works
NUMACTL_ARGS="--interleave=all"
if which numactl >/dev/null 2>/dev/null && numactl $NUMACTL_ARGS ls / >/dev/null 2>/dev/null
then
NUMACTL="numactl $NUMACTL_ARGS"
else
NUMACTL=""
fi
start()
{
echo -n $"Starting mongos: "
daemon --user "$MONGO_USER" $NUMACTL $mongos $OPTIONS
RETVAL=$?
echo
[ $RETVAL -eq 0 ] && touch /var/lock/subsys/mongos
}
stop()
{
echo -n $"Stopping mongos: "
killproc -p "$PIDFILE" -d 300 /usr/bin/mongos
RETVAL=$?
echo
[ $RETVAL -eq 0 ] && rm -f /var/lock/subsys/mongos
}
restart () {
stop
start
}
ulimit -n 12000
RETVAL=0
case "$1" in
start)
start
;;
stop)
stop
;;
restart|reload|force-reload)
restart
;;
condrestart)
[ -f /var/lock/subsys/mongos ] && restart || :
;;
status)
status $mongos
RETVAL=$?
;;
*)
echo "Usage: $0 {start|stop|status|restart|reload|force-reload|condrestart}"
RETVAL=1
esac
exit $RETVAL
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