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peicheng/gist:4343503

Forked from kjoconnor/gist:1007305
Created December 20, 2012 07:18
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Revisions

  1. @kjoconnor kjoconnor created this gist Jun 3, 2011.
    104 changes: 104 additions & 0 deletions gistfile1.sh
    View file
    Original file line number Diff line number Diff line change
    @@ -0,0 +1,104 @@
    #! /bin/sh
    #
    # Logstash Start/Stop logstash
    #
    # chkconfig: 345 99 99
    # description: Logstash
    # processname: logstash

    logstash_bin="java -Djava.net.preferIPv4Stack=true -jar /opt/logstash/logstash-1.0.11pre-monolithic.jar"
    logstash_log="/opt/logstash/logstash-web.log"
    NICE_LEVEL="-n 19"
    PID_FILE="/opt/logstash/logstash-web.pid"

    find_logstash_process () {
    if [ -f $PID_FILE ]; then
    PID=`cat $PID_FILE`
    else
    PIDTEMP=`ps ux | grep logstash | grep java | grep web | awk '{ print $2 }'`
    # Pid not found
    if [ "x$PIDTEMP" = "x" ]; then
    PID=-1
    else
    PID=$PIDTEMP
    # Recompose PID file, not sure if there's a better way of handling this
    echo "Warning: no PID file found, replacing"
    echo $PID > $PID_FILE
    fi
    fi
    }

    start () {
    LOG_DIR=`dirname ${logstash_log}`
    if [ ! -d $LOG_DIR ]; then
    echo "Log dir ${LOG_DIR} doesn't exist. Creating"
    mkdir $LOG_DIR
    fi
    nohup nice ${NICE_LEVEL} ${logstash_bin} web > ${logstash_log} &

    PID=`ps ux | grep logstash | grep java | grep web | awk '{ print $2}'`
    if [ "x$PID" = "x" ]; then
    PID=-1
    fi

    if [ $PID -eq -1 ]; then
    echo "Logstash failed to start."
    exit 1
    else
    echo $PID > $PID_FILE
    echo "Started successfully, PID $PID"
    exit 0
    fi
    }

    stop () {
    find_logstash_process
    if [ "$PID" -ne "-1" ]; then
    kill $PID
    if [ "$?" -eq "0" ]; then
    echo "Logstash web stopped successfully."
    rm -f $PID_FILE
    exit 0
    else
    echo "Logstash was not stopped."
    fi
    else
    echo "Couldn't find Logstash PID, is it running?"
    fi
    }

    case $1 in
    start)
    start
    ;;
    stop)
    stop
    exit 0
    ;;
    reload)
    stop
    start
    ;;
    restart)
    stop
    start
    ;;
    status)
    find_logstash_process
    if [ $PID -gt 0 ]; then
    if [ -d /proc/$PID ]; then
    echo "Running, PID $PID"
    else
    echo "Found PID file, but process does not exist. Removing stale PID."
    rm -f $PID_FILE
    fi
    else
    echo "Not running."
    exit 1
    fi
    ;;
    *)
    echo $"Usage: $0 {start|stop|restart|reload|status}"
    RETVAL=1
    esac
    exit 0