【centos7】rpm安装ES集群

三节点执行。

从官网下载获得

elasticsearch-7.17.20-x86_64.rpm (适配SpringBoot 2.7.3)

elasticsearch-analysis-ik-7.17.18.zip

rpm -ivh elasticsearch-7.17.20-x86_64.rpm

mkdir /usr/share/elasticsearch/plugins/ik

unzip elasticsearch-analysis-ik-7.17.18.zip -d /usr/share/elasticsearch/plugins/ik

rm -rf /var/lib/elasticsearch  默认安装后生成，未运行前为空目录

找个大的目录做一下软连接

mkdir /data/elasticsearch/

ln -s  /data/elasticsearch/  /var/lib/elasticsearch

chmod 777 -R /var/lib/elasticsearch

chmod 777 -R  /data/elasticsearch

vim /usr/share/elasticsearch/plugins/ik/plugin-descriptor.properties

修改

elasticsearch.version=7.17.20  原本7.17.18 修改20即可，兼容

主节点执行:

集群版修改方式:

vim /etc/elasticsearch/elasticsearch.yml (记得保存)

cluster.name: es-cluster

node.name: node-1

network.host: xxx.xxx.xxx.xxx   具体机器ip

discovery.seed_hosts: ["xxx.xxx.200.52", "xxx.xxx.201.52", "xxx.xxx.202.52"] 具体机器ip

xpack.security.enabled: true  开启认证

xpack.security.transport.ssl.enabled: true

xpack.security.transport.ssl.verification_mode: certificate

xpack.security.transport.ssl.keystore.path: elastic-certificates.p12

xpack.security.transport.ssl.truststore.path: elastic-certificates.p12

cluster.initial_master_nodes: ["node-1"] 集群初始化节点

systemctl start elasticsearch

开启节点间加密传输

/usr/share/elasticsearch/bin/elasticsearch-certutil ca

回车两次,集群间都在内网，可以不使用证书密码。

/usr/share/elasticsearch/bin/elasticsearch-certutil cert --ca elastic-stack-ca.p12

回车三次

cp /usr/share/elasticsearch/elastic-certificates.p12 /etc/elasticsearch/

chmod 777 /etc/elasticsearch/elastic-certificates.p12

主节点向从节点发送数据

scp /etc/elasticsearch/elasticsearch.yml root@xxx.xxx.201.52:/etc/elasticsearch/

scp /etc/elasticsearch/elasticsearch.yml root@xxx.xxx.202.52:/etc/elasticsearch/

scp /etc/elasticsearch/elastic-certificates.p12 root@xxx.xxx.201.52:/etc/elasticsearch/

scp /etc/elasticsearch/elastic-certificates.p12 root@xxx.xxx.202.52:/etc/elasticsearch/

*******************仅主节点执行********************

创建用户

/usr/share/elasticsearch/bin/elasticsearch-setup-passwords interactive

y

重复 输入密码

systemctl enable elasticsearch.service

从节点执行

vim /etc/elasticsearch/elasticsearch.yml (记得保存)

修改node.name 为node-2和node-3

修改node.host为从节点实际的ip 如xxx.xxx.201.52

删除 cluster.initial_master_nodes

systemctl start elasticsearch

验证

浏览器访问
http://xxx.xxx.200.52:9200/_cat/nodes?v  换成具体ip

得到