es集群搭建

准备三个主机

IP分别为：192.168.149.132, 192.168.149.133, 192.168.149.134

这里使用docker进行搭建
需要三个主机都有docker环境

从镜像库pull镜像

# docker pull docker.elastic.co/elasticsearch/elasticsearch:7.12.0

添加配置文件

node1:

cluster.name: "es-test-cluster"
node.name: es-node1
network.bind_host: 0.0.0.0
network.publish_host: 192.168.149.132
http.port: 9200
transport.tcp.port: 9300
http.cors.enabled: true
http.cors.allow-origin: "*"
node.master: true
node.data: true
discovery.zen.ping.unicast.hosts: ["192.168.149.132:9300", "192.168.149.133:9300", "192.168.149.134:9300"]
discovery.zen.minimum_master_nodes: 1

node2:

cluster.name: "es-test-cluster"
node.name: es-node2
network.bind_host: 0.0.0.0
network.publish_host: 192.168.149.133
http.port: 9200
transport.tcp.port: 9300
http.cors.enabled: true
http.cors.allow-origin: "*"
node.master: true
node.data: true
discovery.zen.ping.unicast.hosts: ["192.168.149.132:9300", "192.168.149.133:9300", "192.168.149.134:9300"]
discovery.zen.minimum_master_nodes: 1

node3:

cluster.name: "es-test-cluster"
node.name: es-node3
network.bind_host: 0.0.0.0
network.publish_host: 192.168.149.134
http.port: 9200
transport.tcp.port: 9300
http.cors.enabled: true
http.cors.allow-origin: "*"
node.master: true
node.data: true
discovery.zen.ping.unicast.hosts: ["192.168.149.132:9300", "192.168.149.133:9300", "192.168.149.134:9300"]
discovery.zen.minimum_master_nodes: 1

启动docker：

node1：

# docker run -d -p 9200:9200 -p 9300:9300 -v /home/es1/es/config/es1.yml:/usr/share/elasticsearch/config/elasticsearch.yml -v /home/es1/plugins:/usr/share/elasticsearch/plugins -v /home/es1/data:/usr/share/elasticsearch/data -e "ES_JAVA_OPTS=-Xms512m -Xmx512m" --privileged=true --name es1 docker.elastic.co/elasticsearch/elasticsearch:7.12.0

node2:

# docker run -d -p 9200:9200 -p 9300:9300 -v /home/es2/es/config/es2.yml:/usr/share/elasticsearch/config/elasticsearch.yml -v /home/es2/plugins:/usr/share/elasticsearch/plugins -v /home/es2/data:/usr/share/elasticsearch/data -e "ES_JAVA_OPTS=-Xms512m -Xmx512m" --privileged=true --name es1 docker.elastic.co/elasticsearch/elasticsearch:7.12.0

node3:

# docker run -d -p 9200:9200 -p 9300:9300 -v /home/es3/es/config/es3.yml:/usr/share/elasticsearch/config/elasticsearch.yml -v /home/es3/plugins:/usr/share/elasticsearch/plugins -v /home/es3/data:/usr/share/elasticsearch/data -e "ES_JAVA_OPTS=-Xms512m -Xmx512m" --privileged=true --name es3 docker.elastic.co/elasticsearch/elasticsearch:7.12.0

如果遇到内存不够的报错，修改sys配置：

vm.max_map_count = 262144

$ sudo vim /etc/sysctl.conf
$ sudo sysctl -p