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stackdump/init.d/stackdump_solr

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#! /bin/bash
#
# stackdump_solr: Starts the Solr instance for Stackdump
#
# chkconfig: 345 99 01
# description: This daemon provides the search engine capability for Stackdump.\
# It is a required part of Stackdump; Stackdump will not work \
# without it.
# Source function library.
. /etc/init.d/functions
# this needs to be the path of the Stackdump root directory.
STACKDUMP_HOME=/opt/stackdump/
# this is the user that Stackdump runs under
STACKDUMP_USER=stackdump
SOLR_PID_FILE=/var/run/stackdump_solr.pid
if [ ! -d "$STACKDUMP_HOME" ]
then
echo "The STACKDUMP_HOME variable does not point to a valid directory."
exit 1
fi
base=${0##*/}
start() {
echo -n $"Starting Stackdump - Solr... "
# create the logs directory if it doesn't already exist
if [ ! -d "$STACKDUMP_HOME/logs" ]
then
runuser -s /bin/bash $STACKDUMP_USER -c "mkdir $STACKDUMP_HOME/logs"
fi
# check if it is already running
SOLR_PID=`cat $SOLR_PID_FILE 2>/dev/null`
if [ ! -z "$SOLR_PID" ]
then
if [ ! -z "$(pgrep -P $SOLR_PID)" ]
then
echo
echo "Stackdump - Solr is already running."
exit 2
else
# the PID is stale.
rm $SOLR_PID_FILE
fi
fi
# run it!
runuser -s /bin/bash $STACKDUMP_USER -c "$STACKDUMP_HOME/start_solr.sh >> $STACKDUMP_HOME/logs/solr.log 2>&1" &
SOLR_PID=$!
RETVAL=$?
if [ $RETVAL = 0 ]
then
echo $SOLR_PID > $SOLR_PID_FILE
success $"$base startup"
else
failure $"$base startup"
fi
echo
return $RETVAL
}
stop() {
# check if it is running
SOLR_PID=`cat $SOLR_PID_FILE 2>/dev/null`
if [ -z "$SOLR_PID" ] || [ -z "$(pgrep -P $SOLR_PID)" ]
then
echo "Stackdump - Solr is not running."
exit 2
fi
echo -n $"Shutting down Stackdump - Solr... "
# it is running, so shut it down.
# there are many levels of processes here and the kill signal needs to
# be sent to the actual Java process for the process to stop, so let's
# just kill the whole process group.
RUNUSER_CMD_PID=`pgrep -P $SOLR_PID`
RUNUSER_CMD_PGRP=`ps -o pgrp --no-headers -p $RUNUSER_CMD_PID`
pkill -g $RUNUSER_CMD_PGRP
RETVAL=$?
[ $RETVAL = 0 ] && success $"$base shutdown" || failure $"$base shutdown"
rm -f $SOLR_PID_FILE
echo
return $RETVAL
}
status() {
# check if it is running
SOLR_PID=`cat $SOLR_PID_FILE 2>/dev/null`
if [ -z "$SOLR_PID" ]
then
echo "Stackdump - Solr is not running."
exit 0
else
if [ -z "$(pgrep -P $SOLR_PID)" ]
then
rm -f $SOLR_PID_FILE
echo "Stackdump - Solr is not running."
exit 0
else
echo "Stackdump - Solr is running."
exit 0
fi
fi
}
restart() {
stop
start
}
RETVAL=0
# See how we were called.
case "$1" in
start)
start
;;
stop)
stop
;;
status)
status
;;
restart)
restart
;;
*)
echo $"Usage: $0 {start|stop|status|restart}"
exit 1
esac
exit $RETVAL