Hi, bellow is my service/daemon startup/shutdown script. It has some bugs,
but works fine for me.
#!/bin/sh
ElastiSearch daemon start/stop script.
Comments to support chkconfig on RedHat Linux
chkconfig: 2345 64 36
#title : elasticsearch
#description : This script is used such a damon/service start/stop script.
#author : Peter TAKAC / AssmodeuS
#date : 20150210
#version : 0.15
#usage : service elasticsearch
#notes : service start/stop script, also check the conf path. if
proces with the same path runs, it will not start it
#bash_version : 3.2.51(1)
BEGIN INIT INFO
Provides: Elasticsearch
Required-Start: $network $named
Required-Stop: $network $named
Should-Start: ypbind nscd ldap ntpd xntpd
Default-Start: 2 3 4 5
Default-Stop: 0 1 6
Short-Description: This service manages the Elasticsearch daemon
Description: Elasticsearch is a very scalable, schema-free and
high-performance search solution supporting multi-tenancy and near realtime
search.
END INIT INFO
Basic variables and settings
es_home="/elasticsearch/es-int-inst"
es_bindir="$es_home/bin"
es_exec="elasticsearch"
es_prog="$es_bindir/$es_exec"
es_pidpath="/var/run/elasticsearch"
es_pidfile="$es_pidpath/${es_exec}.pid"
es_lockdir="/var/lock/subsys"
es_lockfile="$es_lockdir/$es_exec"
es_user=elasticsearch
es_group=elasticsearch
Heap size defaults to 256m min, 1g max
Set ES_HEAP_SIZE to 50% of available RAM, but no more than 31g
#ES_HEAP_SIZE=2g
Heap new generation
#ES_HEAP_NEWSIZE=
max direct memory
#ES_DIRECT_SIZE=
Additional Java OPTS
#ES_JAVA_OPTS=
Maximum number of open files
MAX_OPEN_FILES=65535
Maximum amount of locked memory
#MAX_LOCKED_MEMORY=
#More application related settings
Elasticsearch log directory
es_logdir="$es_home/logs/$es_exec"
Elasticsearch data directory
es_datadir="/elasticsearch/es-int-data"
Elasticsearch work directory
es_workdir="$es_home/work"
Elasticsearch configuration directory
#es_confdir=/etc/$es_exec
es_confdir="$es_home/config"
Elasticsearch configuration file (elasticsearch.yml)
es_confile="$es_confdir/elasticsearch.yml"
Maximum number of VMA (Virtual Memory Areas) a process can own
MAX_MAP_COUNT=262144
es_daemon="$es_bindir/$es_exec"
es_daemon_opts="-d -p $es_pidfile -Des.default.path.home=$es_home
-Des.default.path.logs=$es_logdir -Des.default.path.data=$es_datadir
-Des.default.path.work=$es_workdir -Des.default.path.conf=$es_confdir"
PATH=$PATH:$es_home
export PATH
export JAVA_HOME
export ES_HEAP_SIZE
export ES_HEAP_NEWSIZE
export ES_DIRECT_SIZE
export ES_JAVA_OPTS
Default value, in seconds, after which the script should timeout waiting
for server start.
0 means do not wait at all
Negative numbers mean to wait indefinitely
service_startup_timeout=900
Use LSB init script functions for printing messages, if possible
lsb_functions="/lib/lsb/init-functions"
if test -f $lsb_functions ; then
. $lsb_functions
else
log_success_msg()
{
echo " SUCCESS! $@"
}
log_failure_msg()
{
echo " ERROR! $@"
}
fi
mode=$1 # start or stop
[ $# -ge 1 ] && shift
case echo "testing\c",echo -n testing in
c,-n*) echo_n= echo_c= ;;
c,*) echo_n=-n echo_c= ;;
*) echo_n= echo_c='\c' ;;
esac
wait_for_pid () {
verb="$1" # created | removed
pid="$2" # process ID of the program operating on
the pid-file
pid_file_path="$3" # path to the PID file.
i=0
avoid_race_condition="by checking again"
while test $i -ne $service_startup_timeout ; do
case "$verb" in
'created')
# wait for a PID-file to pop into existence.
test -s "$pid_file_path" && i='' && break
;;
'removed')
# wait for this PID-file to disappear
test ! -s "$pid_file_path" && i='' && break
;;
*)
echo "wait_for_pid () usage: wait_for_pid created|removed pid
pid_file_path"
exit 1
;;
esac
# if server is not running, then pid-file will never be updated
if test -n "$pid"; then
if kill -0 "$pid" 2>/dev/null; then
: # the server still runs
else
# The server may have exited between the last pid-file check and
now.
if test -n "$avoid_race_condition"; then
avoid_race_condition=""
continue # Check again.
fi
# there is nothing that will affect the file.
log_failure_msg "The server quit without updating PID file
($pid_file_path)."
return 1 # not waiting any more.
fi
fi
echo $echo_n ".$echo_c"
i=`expr $i + 1`
sleep 1
done
if test -z "$i" ; then
log_success_msg
return 0
else
log_failure_msg
return 1
fi
}
Set pid file if not given
if test -z "$es_pidfile"
then
es_pidfile=$es_datadir/hostname.pid
else
case "$es_pidfile" in
/* ) ;;
* ) es_pidfile="$es_datadir/$es_pidfile" ;;
esac
fi
case "$mode" in
'start')
# Start daemon
# Safeguard (relative paths, core dumps..)
cd $es_home
echo $echo_n "Starting $es_exec:"
if test -x "$es_bindir/$es_exec" ; then
es_pidc=$(ps axwwo pid,cmd|grep -v grep|grep $es_confdir -c -w)
#echo "start_daemon -u $es_user -p $es_pidfile $es_daemon
$es_daemon_opts >/dev/null 2>&1 &"
if [[ $es_pidc -ge "1" ]]; then
es_pid=$(ps axwwo pid,cmd|grep -v grep|grep $es_confdir|cut -c1-5)
echo " ${stat}${warn}failed! ${norm}"
if test -s "$es_pidfile" ; then
read es_pidf < "$es_pidfile"
else
es_pidf="0"
fi
if [[ $es_pid -eq $es_pidf ]]; then
echo "${attn}Already running with the same config file! ${norm}"
else
echo "${attn}Already running with the same config file but PID
and PID-file does not match! ${norm}"
fi
echo "PID: "$es_pid
echo "For details please type: ps -Flj --pid=PID#ABOVE"
else
chown -R $es_user $es_pidpath
chgrp -R $es_group $es_pidpath
#$es_daemon $es_daemon_opts >/dev/null 2>&1 &
#startproc -u $es_user -p $es_pidfile $es_daemon $es_daemon_opts
/dev/null 2>&1 &
start_daemon -u $es_user -p $es_pidfile $es_daemon $es_daemon_opts
/dev/null 2>&1 &
wait_for_pid created "$!" "$es_pidfile"; return_value=$?
# Make lock for RedHat / SuSE
if test -w "$es_lockdir"
then
touch "$es_lockfile"
fi
#echo
#exit $return_value
fi
else
log_failure_msg "Could not find Elasticsearch ($es_bindir/$es_exec)"
fi
;;
'stop')
# Stop daemon. We use a signal here to avoid having to know the
# root password.
if test -s "$es_pidfile"
then
es_pid=`cat "$es_pidfile"`
if (kill -0 $es_pid 2>/dev/null)
then
echo $echo_n "Shutting down ElasticSearch"
kill $es_pid
# elasticsearch should remove the pid file when it exits, so wait
for it.
wait_for_pid removed "$es_pid" "$es_pidfile"; return_value=$?
else
log_failure_msg "Elasticsearch process #$es_pid is not running!"
rm "$es_pidfile"
fi
# Delete lock for RedHat / SuSE
if test -f "$es_lockfile"
then
rm -f "$es_lockfile"
fi
exit $return_value
else
log_failure_msg "Elasticsearch PID file could not be found!"
fi
;;
'restart')
# Stop the service and regardless of whether it was
# running or not, start it again.
if $0 stop; then
$0 start
else
log_failure_msg "Failed to stop running server, so refusing to try to
start."
exit 1
fi
;;
'status')
# First, check to see if pid file exists
if test -s "$es_pidfile" ; then
read es_pid < "$es_pidfile"
if kill -0 $es_pid 2>/dev/null ; then
log_success_msg "Elasticsearch running ($es_pid)"
exit 0
else
log_failure_msg "Elasticsearch is not running, but PID file exists"
exit 1
fi
else
# Try to find appropriate Elasticsearch process
es_pid=pidof -o $$ -x $es_prog
# test if multiple pids exist
pid_count=echo $es_pid | wc -w
if test $pid_count -gt 1 ; then
log_failure_msg "Multiple Elasticsearch running but PID file could
not be found ($es_pid)"
exit 5
elif test -z $es_pid ; then
if test -f "$es_lockfile" ; then
log_failure_msg "Elasticsearch is not running, but lock file
($es_lockfile) exists"
exit 2
fi
log_failure_msg "Elasticsearch is not running"
exit 3
else
log_failure_msg "Elasticsearch is running but PID file could not be
found"
exit 4
fi
fi
;;
*)
# usage
es_basename=basename "$0"
echo "Usage: $es_basename {start|stop|restart|status} [
Elasticsearch options ]"
exit 1
;;
esac
echo
exit 0
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