启动多个logstash脚本

一台服务器上启动多个logstash脚本

# more logstash_click

#!/bin/sh

# Init script for logstash

# Maintained by Elasticsearch

# Generated by pleaserun.

# Implemented based on LSB Core 3.1:

#   * Sections: 20.2, 20.3

#

### BEGIN INIT INFO

# Provides:          logstash

# Required-Start:    $remote_fs $syslog

# Required-Stop:     $remote_fs $syslog

# Default-Start:     2 3 4 5

# Default-Stop:      0 1 6

# Short-Description:

# Description:        Starts Logstash as a daemon.

### END INIT INFO

PATH=/sbin:/usr/sbin:/bin:/usr/bin:/usr/local/logstash/bin

export PATH

if [ `id -u` -ne 0 ]; then

   echo "You need root privileges to run this script"

   exit 1

fi

# adirname - return absolute dirname of given file

adirname() { odir=`pwd`; cd `dirname $1`; pwd; cd "${odir}"; }

MYNAME=`basename "$0"`

MYDIR=`adirname "$0"`

LS_LOG_DIR="${MYDIR}/logs"

LS_DATA_PATH="${MYDIR}/data"

LS_CONF_DIR="${MYDIR}/conf.d"

name="${MYNAME}"

LS_USER=elasticsearch

LS_GROUP=elasticsearch

LS_HOME=/usr/local/logstash

LS_HEAP_SIZE="256m"

#LS_LOG_DIR=/usr/local/logstash/logs

LS_LOG_FILE="${LS_LOG_DIR}/$name.log"

pidfile="${LS_LOG_DIR}/$name.pid"

#LS_CONF_DIR=/usr/local/logstash/conf.d

LS_OPEN_FILES=16384

LS_NICE=19

KILL_ON_STOP_TIMEOUT=${KILL_ON_STOP_TIMEOUT-0} #default value is zero to this variable but could be updated by user request

LS_OPTS=""

[ -r /etc/default/$name ] && . /etc/default/$name

[ -r /etc/sysconfig/$name ] && . /etc/sysconfig/$name

program=$LS_HOME/bin/logstash

args=" -f ${LS_CONF_DIR} --path.data=${LS_DATA_PATH} -l ${LS_LOG_FILE} ${LS_OPTS}"

quiet() {

  "$@" > /dev/null 2>&1

  return $?

}

start() {

  LS_JAVA_OPTS="${LS_JAVA_OPTS} -Djava.io.tmpdir=${LS_HOME}"

  HOME=${LS_HOME}

  export PATH HOME LS_HEAP_SIZE LS_JAVA_OPTS LS_USE_GC_LOGGING LS_GC_LOG_FILE

  # chown doesn't grab the suplimental groups when setting the user:group - so we have to do it for it.

  # Boy, I hope we're root here.

  SGROUPS=$(id -Gn "$LS_USER" | tr " " "," | sed 's/,$//'; echo '')

  if [ ! -z $SGROUPS ]

  then

        EXTRA_GROUPS="--groups $SGROUPS"

  fi

  # set ulimit as (root, presumably) first, before we drop privileges

  ulimit -n ${LS_OPEN_FILES}

  # Run the program!

  nice -n ${LS_NICE} chroot --userspec $LS_USER:$LS_GROUP $EXTRA_GROUPS / sh -c "

    cd $LS_HOME

    ulimit -n ${LS_OPEN_FILES}

    $program $args > ${LS_LOG_DIR}/$name.stdout" 2> "${LS_LOG_DIR}/$name.err" &

  # Generate the pidfile from here. If we instead made the forked process

  # generate it there will be a race condition between the pidfile writing

  # and a process possibly asking for status.

  echo $! > $pidfile

  echo "$name started."

  return 0

}

stop() {

  # Try a few times to kill TERM the program

  if status ; then

    pid=`cat "$pidfile"`

    echo "Killing $name (pid $pid) with SIGTERM"

    ps -ef |grep $pid |grep -v 'grep' |awk '{print $2}' | xargs kill -9

    # Wait for it to exit.

    for i in 1 2 3 4 5 6 7 8 9 ; do

      echo "Waiting $name (pid $pid) to die..."

      status || break

      sleep 1

    done

    if status ; then

      if [ $KILL_ON_STOP_TIMEOUT -eq 1 ] ; then

        echo "Timeout reached. Killing $name (pid $pid) with SIGKILL. This may result in data loss."

        kill -KILL $pid

        echo "$name killed with SIGKILL."

      else

        echo "$name stop failed; still running."

        return 1 # stop timed out and not forced

      fi

    else

      echo "$name stopped."

    fi

  fi

}

status() {

  if [ -f "$pidfile" ] ; then

    pid=`cat "$pidfile"`

    if kill -0 $pid > /dev/null 2> /dev/null ; then

      # process by this pid is running.

      # It may not be our pid, but that's what you get with just pidfiles.

      # TODO(sissel): Check if this process seems to be the same as the one we

      # expect. It'd be nice to use flock here, but flock uses fork, not exec,

      # so it makes it quite awkward to use in this case.

      return 0

    else

      return 2 # program is dead but pid file exists

    fi

  else

    return 3 # program is not running

  fi

}

configtest() {

  # Check if a config file exists

  if [ ! "$(ls -A ${LS_CONF_DIR}/* 2> /dev/null)" ]; then

    echo "There aren't any configuration files in ${LS_CONF_DIR}"

    return 1

  fi

  HOME=${LS_HOME}

  export PATH HOME

  test_args="-t -f ${LS_CONF_DIR} ${LS_OPTS} "

  $program ${test_args}

  [ $? -eq 0 ] && return 0

  # Program not configured

  return 6

}

case "$1" in

  start)

    status

    code=$?

    if [ $code -eq 0 ]; then

      echo "$name is already running"

    else

      start

      code=$?

    fi

    exit $code

    ;;

  stop) stop ;;

  force-stop) force_stop ;;

  status)

    status

    code=$?

    if [ $code -eq 0 ] ; then

      echo "$name is running"

    else

      echo "$name is not running"

    fi

    exit $code

    ;;

  reload) reload ;;

  restart)

    stop && start

    ;;

  check)

    configtest

    exit $?

    ;;

  *)

    echo "Usage: $SCRIPTNAME {start|stop|status|restart|check}" >&2

    exit 3

  ;;

esac

exit $?