$ sudo service mongod start

$ sudo service mongod status
mongod stop/waiting

# Ubuntu upstart file at /etc/init/mongod.conf
 
# Recommended ulimit values for mongod or mongos
# See http://docs.mongodb.org/manual/reference/ulimit/#recommended-settings
#
limit fsize unlimited unlimited
limit cpu unlimited unlimited
limit as unlimited unlimited
limit nofile 64000 64000
limit rss unlimited unlimited
limit nproc 32000 32000
 
kill timeout 300 # wait 300s between SIGTERM and SIGKILL.
 
pre-start script
    mkdir -p /var/lib/mongodb/
    mkdir -p /var/log/mongodb/
end script
 
start on runlevel [2345]
stop on runlevel [06]
 
script
  ENABLE_MONGOD="yes"
  CONF=/etc/mongod.conf
  DAEMON=/usr/bin/mongod
  DAEMONUSER=${DAEMONUSER:-mongodb}
 
  if [ -f /etc/default/mongod ]; then . /etc/default/mongod; 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 $NUMACTL_ARGS ls / >/dev/null 2>/dev/null
  then
    NUMACTL="$(which numactl) -- $NUMACTL_ARGS"
    DAEMON_OPTS=${DAEMON_OPTS:-"--config $CONF"}
  else
    NUMACTL=""
    DAEMON_OPTS="-- "${DAEMON_OPTS:-"--config $CONF"}
  fi
 
  if [ "x$ENABLE_MONGOD" = "xyes" ]
  then
    exec start-stop-daemon --start --chuid $DAEMONUSER --exec $NUMACTL $DAEMON $DAEMON_OPTS
  fi
end script

deb http://downloads-distro.mongodb.org/repo/ubuntu-upstart dist 10gen