Wie startet man Elasticsearch als Service in Centos 7?

Question

Ich habe elasticsearch 2.3.3 in Centos 7 installieren, aber nach dem Schließen Terminal elasticsearch Plugin Kopf automatisch schließen, aber ich möchte weiter im Hintergrund laufen. Bitte geben Sie mir eine hilfreiche Antwort.

Answer 1

Sie können es im Hintergrund laufen, wie zwei Möglichkeiten,

1. Nohup 
2. Creating service script and put it in init.d folder 

nohup

ZB: nohup ./bin/elasticsearch

Service-Skript

Verwenden Sie das folgende Skript ,

#!/bin/bash 
### BEGIN INIT INFO 
# Provides:   Elasticsearch 
# Default-Start:  2 3 4 5 
# Default-Stop:  0 1 6 
# Short-Description: Runs elasticsearch daemon 
# Description: Runs the elasticsearch daemon as a non-root user 
### END INIT INFO 

# Process name 
NAME=elasticsearch 
DESC="Elasticsearch" 
PROG="/etc/init.d/elasticsearch" 

# Configure location of Elasticsearch bin 
ELASTICSEARCH_BIN=/opt/elasticsearch-2.3.0/bin 

# PID Info 
PID_FOLDER=/var/run/elasticsearch/ 
PID_FILE=/var/run/elasticsearch/$NAME.pid 
LOCK_FILE=/var/lock/subsys/$NAME 
PATH=/bin:/usr/bin:/sbin:/usr/sbin:$ELASTICSEARCH_BIN 
DAEMON=$ELASTICSEARCH_BIN/$NAME 

# Configure logging location 
ELASTICSEARCH_LOG=/var/log/elasticsearch.log 

# Begin Script 
RETVAL=0 

if [ `id -u` -ne 0 ]; then 
     echo "You need root privileges to run this script" 
     exit 1 
fi 

# Function library 
. /etc/init.d/functions 

start() { 
     echo -n "Starting $DESC : " 

     pid=`pidofproc -p $PID_FILE elasticsearch` 
     if [ -n "$pid" ] ; then 
       echo "Already running." 
       exit 0 
     else 
     # Start Daemon 
       if [ ! -d "$PID_FOLDER" ] ; then 
         mkdir $PID_FOLDER 
       fi 
       daemon --user=$DAEMON_USER --pidfile=$PID_FILE $DAEMON 1>"$ELASTICSEARCH_LOG" 2>&1 & 
       sleep 2 
       pidofproc node > $PID_FILE 
       RETVAL=$? 
       [[ $? -eq 0 ]] && success || failure 
       echo 
       [ $RETVAL = 0 ] && touch $LOCK_FILE 
       return $RETVAL 
     fi 
} 

reload() 
{ 
    echo "Reload command is not implemented for this service." 
    return $RETVAL 
} 

stop() { 
     echo -n "Stopping $DESC : " 
     killproc -p $PID_FILE $DAEMON 
     RETVAL=$? 
     echo 
     [ $RETVAL = 0 ] && rm -f $PID_FILE $LOCK_FILE 
} 

case "$1" in 
    start) 
     start 
     ;; 
    stop) 
     stop 
     ;; 
    status) 
     status -p $PID_FILE $DAEMON 
     RETVAL=$? 
     ;; 
    restart) 
     stop 
     start 
     ;; 
    reload) 
     reload 
     ;; 
    *) 
     # Invalid Arguments, print the following message. 
     echo "Usage: $0 {start|stop|status|restart}" >&2 
     exit 2 
     ;; 
esac 

sudo chmod + x /etc/init.d/elasticsearch
sudo update-rc.d Elasticsearch defaults 96 9

sudo /etc/init.d/elasticsearch