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#! /bin/bash
### BEGIN INIT INFO
# Provides: riak
# Required-Start: $remote_fs $syslog
# Required-Stop: $remote_fs $syslog
# Default-Start: 2 3 4 5
# Default-Stop: 0 1 6
# Short-Description: A distributed key value store
# Description: Basho Technologies's Riak distributed key value store
### END INIT INFO
# Original Author: Vladimir Osintsev <osintsev@gmail.com>
# Modified for Ubuntu by: Matt Heitzenroder <mheitzenroder@gmail.com>
# Modified for Riak by: Grant Schofield <grant@basho.com>
PATH=/sbin:/usr/sbin:/bin:/usr/bin
DESC="a distributed key value store"
NAME=riak
ERTS_PATH=/usr/lib/riak/erts-5.7.5/bin
DAEMON=/usr/sbin/$NAME
RUNNER_LOG_DIR=/var/log/$NAME
RUNNER_USR_DIR=/usr
DAEMON_CONFDIR=/etc/$NAME
DAEMON_BASEDIR=/var/lib/$NAME
DAEMON_SHAREDIR=/usr/share/$NAME
DAEMON_ARGS='start'
SCRIPTNAME=/etc/init.d/$NAME
# Exit if the package is not installed
#[ -x "$RUNNER_USR_DIR/sbin/$NAME" ] || exit 0
# Read configuration variable file if it is present
[ -r /etc/default/$NAME ] && . /etc/default/$NAME
# Load the VERBOSE setting and other rcS variables
. /lib/init/vars.sh
. /lib/lsb/init-functions
#
# Function that starts the daemon/service
#
do_start()
{
# Return
# 0 if daemon has been started
# 1 if daemon was already running
# 2 if daemon could not be started
RETVAL=`$DAEMON ping`
[ "$RETVAL" = "pong" ] && return 1
su - riak -c "$DAEMON $DAEMON_ARGS" || return 2
}
#
# Function that stops the daemon/service
#
do_stop()
{
# Try to stop via "riak stop" first
RETVAL=`su - riak -c "$DAEMON ping"`
[ "$RETVAL" = "pong" ] && su - riak -c "$DAEMON stop"
sleep 2
RETVAL=`pidof $ERTS_PATH/beam.smp`
[ "$RETVAL" = "" ] && return 0
#
# It didn't exit nicely, be mean.
#
# Return
# 0 if daemon has been stopped
# 1 if daemon was already stopped
# 2 if daemon could not be stopped
# other if a failure occurred
start-stop-daemon --stop \
--quiet \
--retry=TERM/30/KILL/5 \
--user riak \
--exec $ERTS_PATH/beam.smp
return $?
}
#
# Function that graceful reload the daemon/service
#
do_reload() {
# Restart the VM without exiting the process
su - riak -c "$DAEMON restart" && return $? || return 2
}
case "$1" in
start)
[ "$VERBOSE" != no ] && log_daemon_msg "Starting $DESC" "$NAME"
do_start
case "$?" in
0|1) [ "$VERBOSE" != no ] && log_end_msg 0 ;;
2) [ "$VERBOSE" != no ] && log_end_msg 1 ;;
esac
;;
stop)
[ "$VERBOSE" != no ] && log_daemon_msg "Stopping $DESC" "$NAME"
do_stop
case "$?" in
0|1) [ "$VERBOSE" != no ] && log_end_msg 0 ;;
2) [ "$VERBOSE" != no ] && log_end_msg 1 ;;
esac
;;
ping)
# See if the VM is alive
$DAEMON ping || exit $?
;;
reload|force-reload)
log_daemon_msg "Reloading $DESC" "$NAME"
do_reload
log_end_msg $?
;;
restart)
log_daemon_msg "Restarting $DESC" "$NAME"
do_stop
case "$?" in
0|1)
do_start
case "$?" in
0) log_end_msg 0 ;;
1) log_end_msg 1 ;; # Old process is still running
*) log_end_msg 1 ;; # Failed to start
esac
;;
*)
# Failed to stop
log_end_msg 1
;;
esac
;;
*)
echo "Usage: $SCRIPTNAME {start|stop|ping|restart|force-reload}" >&2
exit 3
;;
esac
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