--- /dev/null
+#! /bin/sh
+
+# Author: Petter Reinholdtsen <pere@hungry.com>
+# License: GNU General Public License v2 or later
+#
+### BEGIN INIT INFO
+# Provides: mpt-statusd
+# Required-Start: $remote_fs $syslog
+# Required-Stop: $remote_fs $syslog
+# Default-Start: 2 3 4 5
+# Default-Stop: 0 1 6
+# Short-Description: Check mpt-status values in the background.
+### END INIT INFO
+
+PATH=/sbin:/bin:/usr/sbin:/usr/bin
+DESC="mpt-status monitor"
+NAME=mpt-statusd
+PIDFILE=/var/run/$NAME.pid
+STATUSFILE=/var/run/$NAME.status
+SCRIPTNAME=/etc/init.d/$NAME
+
+
+# Do not touch you can configure this in /etc/default/mpt-statusd
+MAILTO=root # Where to report problems
+PERIOD=600 # Seconds between each check (default 10 minutes)
+REMIND=7200 # Seconds between each reminder (default 2 hours)
+RUN_DAEMON=yes
+ID=0
+
+[ -e /etc/default/mpt-statusd ] && . /etc/default/mpt-statusd
+
+# Gracefully exit if the package has been removed.
+test -x /usr/sbin/mpt-status || exit 0
+
+. /lib/lsb/init-functions
+[ -e /etc/default/rcS ] && . /etc/default/rcS
+
+if [ $RUN_DAEMON = "no" ] ; then
+ log_begin_msg "mpt-statusd is disabled in /etc/default/mpt-statusd, not starting."
+ log_end_msg 0
+ exit 0
+fi
+
+if ! [ -e "/proc/mpt/version" ] ; then
+ log_failure_msg "The mptctl module is missing. Please have a look at the README.Debian.gz."
+ log_end_msg 0
+ exit 0
+fi
+
+check_mpt() {
+ echo $$ > $PIDFILE.new && mv $PIDFILE.new $PIDFILE
+ while true ; do
+ # Check ever $PERIOD seconds, send email on every status
+ # change and repeat ever $REMIND seconds if the raid is still
+ # bad.
+ if (mpt-status -i $ID) |grep -q 'state OPTIMAL' ; then
+ BADRAID=false
+ else
+ BADRAID=true
+ logger -t mpt-statusd "detected non-optimal RAID status"
+ fi
+ STATUSCHANGE=false
+ if [ true = "$BADRAID" ] ; then
+ # RAID not OK
+ (mpt-status -i $ID) > $STATUSFILE.new
+ if [ ! -f $STATUSFILE ] ; then # RAID just became broken
+ STATUSCHANGE=true
+ mv $STATUSFILE.new $STATUSFILE
+ elif cmp -s $STATUSFILE $STATUSFILE.new ; then
+ # No change. Should we send reminder?
+ LASTTIME="`stat -c '%Z' $STATUSFILE`"
+ NOW="`date +%s`"
+ SINCELAST="`expr $NOW - $LASTTIME`"
+ if [ $REMIND -le "$SINCELAST" ]; then
+ # Time to send reminder
+ STATUSCHANGE=true
+ mv $STATUSFILE.new $STATUSFILE
+ else
+ rm $STATUSFILE.new
+ fi
+ else
+ STATUSCHANGE=true
+ mv $STATUSFILE.new $STATUSFILE
+ fi
+ else
+ # RAID OK
+ if [ -f $STATUSFILE ] ; then
+ rm $STATUSFILE
+ STATUSCHANGE=true
+ fi
+ fi
+
+ if [ true = "$STATUSCHANGE" ]; then
+ hostname="`uname -n`"
+ (
+ cat <<EOF
+This is a RAID status update from mpt-statusd. The mpt-status
+program reports that one of the RAIDs changed state:
+
+EOF
+ if [ -f $STATUSFILE ] ; then
+ cat $STATUSFILE
+ else
+ (mpt-status -i $ID)
+ fi
+ echo
+ echo "Report from $0 on $hostname"
+ ) | mail -s "info: mpt raid status change on $hostname" $MAILTO
+ fi
+ sleep $PERIOD
+ done
+}
+
+check_daemon() {
+ # Let's check if there is a daemon which is really running and not timing out
+ DAEMON_RUN=`ps aux | grep "/etc/init.d/mpt-statusd check_mpt" | grep -v grep | grep -v daemon`
+ if [ -n "$DAEMON_RUN" ] ; then
+ return 1;
+ else
+ return 0;
+ fi
+}
+
+#
+# Function that starts the daemon/service.
+#
+d_start() {
+ [ -f $PIDFILE ] && PID="`cat $PIDFILE`"
+ if [ "$PID" ] ; then
+ log_progress_msg "Daemon already running. Refusing to start another"
+ return 0
+ elif check_daemon ; then
+ # Use the daemon package to turn this script into a daemon
+ start-stop-daemon --start --quiet --pidfile $PIDFILE \
+ --oknodo --exec /usr/bin/daemon /usr/bin/daemon $SCRIPTNAME check_mpt
+ return 0
+ else
+ log_progress_msg "Daemon is already running. Refusing to start another"
+ return 0
+ fi
+}
+
+#
+# Function that stops the daemon/service.
+#
+d_stop() {
+ if [ -f $PIDFILE ] ; then
+ start-stop-daemon --stop --oknodo --quiet --pidfile $PIDFILE > /dev/null 2>&1
+ rm -f $PIDFILE
+ else
+ log_progress_msg "Daemon is already stopped."
+ return 0
+ fi
+}
+
+# This is a workaround function which does not directly exit and
+# therefore can be used by a restart
+d_stop_by_restart() {
+ if [ -f $PIDFILE ] ; then
+ start-stop-daemon --oknodo --stop --quiet --pidfile $PIDFILE
+ rm -f $PIDFILE
+ log_end_msg 0
+ else
+ log_progress_msg "Daemon is already stopped."
+ log_end_msg 0
+ fi
+}
+
+case "$1" in
+ start)
+ echo -n ""
+ log_begin_msg "Starting $DESC: $NAME"
+ d_start ; CODE=$?
+ log_end_msg $CODE
+ ;;
+ stop)
+ log_begin_msg "Stopping $DESC: $NAME"
+ d_stop ; CODE=$?
+ log_end_msg $CODE
+ ;;
+ check_mpt)
+ check_mpt
+ ;;
+ restart|force-reload)
+ log_begin_msg "Restarting $DESC: $NAME"
+ d_stop_by_restart
+ sleep 1
+ d_start || CODE=$?
+ log_end_msg $CODE
+ ;;
+ *)
+ # echo "Usage: $SCRIPTNAME {start|stop|restart|reload|force-reload}" >&2
+ echo "Usage: $SCRIPTNAME {start|stop|restart|force-reload}" >&2
+ exit 1
+ ;;
+esac
+
+exit 0
projects / sven / mpt-status.git / blobdiff