ElasticSearch 클러스터 설치하기 3개의 Master, 2개의 Data Node

구성 :  3개의 MasterNode , 2개의 DataNode

20.50 : Data Node(With Master) 
20.51 : Data Node(With Master)
20.52  : Kibana(Only Master)

 

 

1. OS 파라미터 변경

# vi /etc/sysctl.conf 
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vm.max_map_count=262144
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2. ES 설치파일 받기

$ wget https://artifacts.elastic.co/downloads/elasticsearch/elasticsearch-7.10.0-linux-x86_64.tar.gz
$ tar -zxvf elasticsearch-7.10.0-linux-x86_64.tar.gz
$ mv elasticsearch-7.10.0 elasticsearch

3. 중지/기동 스크립트 생성

$ vi start-es.sh
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#!/bin/bash
su - esadmin -c "/home/esadmin/SW_Install/elasticsearch/bin/elasticsearch -d"
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$ vi stop-es.sh
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#!/bin/bash
echo "Kill Elastic Process All"
ELASTIC_PID=$(/bin/ps -fu esadmin | grep elastic | grep -v grep | awk '{print $2}')
echo "Process ID is"
echo ${ELASTIC_PID}

/bin/kill -9 $ELASTIC_PID
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4. 각 역할군별 ES설정

$ vi /home/esadmin/SW_Install/elasticsearch/config/elasticsearch.yml

# DataNode의 경우
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cluster.name: jpkim-es
node.name: ${HOSTNAME}
node.master: true
node.data: true
path.data: /data/esdata
path.logs: /data/eslogs
network.host: 192.168.20.50
discovery.seed_hosts: ["192.168.20.50","192.168.20.51","192.168.20.52"]
cluster.initial_master_nodes: ["192.168.20.50","192.168.20.51","192.168.20.52"]
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# Only MasterNode의 경우
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cluster.name: jpkim-es
node.name: ${HOSTNAME}
node.master: true
node.data: false
path.data: /data/esdata
path.logs: /data/eslogs
network.host: 192.168.20.52
discovery.seed_hosts: ["192.168.20.50","192.168.20.51","192.168.20.52"]
cluster.initial_master_nodes: ["192.168.20.50","192.168.20.51","192.168.20.52"]
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5. 잘 설치되었는지 테스트

$ curl http://192.168.20.50:9200
$ curl http://192.168.20.51:9200
$ curl http://192.168.20.52:9200

$ curl http://192.168.20.50:9200/_cluster/health?pretty
$ curl http://192.168.20.51:9200/_cluster/health?prett 
$ curl http://192.168.20.52:9200/_cluster/health?pretty