02. Elasticsearch Cluster 6.X (Log量太大建議採用)

位置: 洪瑞展 > 000_伺服器管理 > Graylog

by 洪瑞展

2019-05-22 08:51:44, 回應(0), 人氣(429)

#事前準備(每台4 vcpu，8G ram，300G HD)

192.168.100.10 esMaster

192.168.100.11 esData01

192.168.100.12 esData02

#以上每台皆如下安裝與設定

#=============================================================

#請先安裝Java

#設定/etc/hosts新增下列內容

192.168.100.10 esMaster

192.168.100.11 esData01

192.168.100.12 esData02

#設定elasticsearch.repo

vim /etc/yum.repos.d/elasticsearch.repo

#新增下列內容

[elasticsearch-6.x]

name=Elasticsearch repository for 6.x packages

baseurl=https://artifacts.elastic.co/packages/oss-6.x/yum

gpgcheck=1

gpgkey=https://artifacts.elastic.co/GPG-KEY-elasticsearch

enabled=1

autorefresh=1

type=rpm-md

#安裝elasticsearch

yum install elasticsearch -y

#設定elasticsearch

vim /etc/elasticsearch/elasticsearch.yml

#修改以下內容

cluster.name: graylog

node.name: ${HOSTNAME}

network.host: 0.0.0.0

discovery.zen.ping.unicast.hosts: ["esMaster", "esData01", "esData02"]

#discovery.zen.minimum_master_nodes計算方式:Node總數/2 + 1

#可參考最下方建議

discovery.zen.minimum_master_nodes: 3

action.auto_create_index: false

#啟用與設定開起啟動elasticsearch

chkconfig --add elasticsearch

systemctl daemon-reload

systemctl enable elasticsearch.service

systemctl restart elasticsearch.service

#開啟防火牆

firewall-cmd --add-port={9200/tcp,9300/tcp} --permanent

firewall-cmd --reload

#discovery.zen.minimum_master_nodes參考

Master nodes	minimum_master_nodes	Comments
1	1
2	1	With 2 the other node going down would stop the cluster from working!
3	2
4	3
5	3
6	4