部署步骤
初始化 es 配置文件
-- 拉取 es 镜像
docker pull elasticsearch:7.2.0
--创建挂载目录[data:存放索引数据,plugins:存放 es 插件]
mkdir -p /esdata/elasticsearch
mkdir -p /esdata/elasticsearch/data
mkdir -p /esdata/elasticsearch/data/data1
mkdir -p /esdata/elasticsearch/data/data2
mkdir -p /esdata/elasticsearch/data/data3
mkdir -p /esdata/elasticsearch/plugins
mkdir -p /esdata/elasticsearch/plugins/plugins1
mkdir -p /esdata/elasticsearch/plugins/plugins2
mkdir -p /esdata/elasticsearch/plugins/plugins3
-- 设置执行权限
chmod 777 /esdata/elasticsearch/data/data1
chmod 777 /esdata/elasticsearch/data/data2
chmod 777 /esdata/elasticsearch/data/data3
--data1/data2/data3 分别创建 es.yml [network.publish_host:填写服务器 ip]
vim /esdata/elasticsearch/config/es1.yml
->>
cluster.name: elasticsearch-cluster
cluster.initial_master_nodes : es-node1
node.name: es-node1
node.master: true
node.data: true
network.bind_host: 0.0.0.0
network.publish_host: 192.168.1.127
http.port: 9201
transport.tcp.port: 9301
http.cors.enabled: true
http.cors.allow-origin: "*"
discovery.zen.ping.unicast.hosts: ["192.168.1.127:9301","192.168.1.127:9302","192.168.1.127:9303"]
vim /esdata/elasticsearch/config/es2.yml
->>
cluster.name: elasticsearch-cluster
node.name: es-node2
node.master: false
node.data: true
network.bind_host: 0.0.0.0
network.publish_host: 192.168.1.127
http.port: 9202
transport.tcp.port: 9302
http.cors.enabled: true
http.cors.allow-origin: "*"
discovery.zen.ping.unicast.hosts: ["192.168.1.127:9301","192.168.1.127:9302","192.168.1.127:9303"]
vim /esdata/elasticsearch/config/es3.yml
->>
cluster.name: elasticsearch-cluster
node.name: es-node3
node.master: false
node.data: true
network.bind_host: 0.0.0.0
network.publish_host: 192.168.1.127
http.port: 9203
transport.tcp.port: 9303
http.cors.enabled: true
http.cors.allow-origin: "*"
discovery.zen.ping.unicast.hosts: ["192.168.1.127:9300","192.168.1.127:9301","192.168.1.127:9302"]
调高 JVM 线程数限制数量
vim /etc/sysctl.conf
->>
vm.max_map_count=262144
# 刷新配置
sysctl -p
服务部署
es 集群部署
# 服务 1
docker run -e ES_JAVA_OPTS="-Xms2048m -Xmx2048m" \
-d -p 9201:9201 -p 9301:9301 \
-e ES_MIN_MEM=128m \
-e ES_MAX_MEM=4096m \
-v /esdata/elasticsearch/config/es1.yml:/usr/share/elasticsearch/config/elasticsearch.yml \
-v /esdata/elasticsearch/data/data1/:/usr/share/elasticsearch/data/ \
-v /esdata/elasticsearch/plugins/plugins1/:/usr/share/elasticsearch/plugins \
--restart=always \
--name ES01 \
elasticsearch:7.2.0
# 服务 2
docker run -e ES_JAVA_OPTS="-Xms2048m -Xmx2048m" \
-d -p 9202:9202 -p 9302:9302 \
-e ES_MIN_MEM=128m \
-e ES_MAX_MEM=4096m \
-v /esdata/elasticsearch/config/es2.yml:/usr/share/elasticsearch/config/elasticsearch.yml \
-v /esdata/elasticsearch/data/data2/:/usr/share/elasticsearch/data/ \
-v /esdata/elasticsearch/plugins/plugins2/:/usr/share/elasticsearch/plugins \
--restart=always \
--name ES02 \
elasticsearch:7.2.0
# 服务 3
docker run -e ES_JAVA_OPTS="-Xms2048m -Xmx2048m" \
-d -p 9203:9203 -p 9303:9303 \
-e ES_MIN_MEM=128m \
-e ES_MAX_MEM=4096m \
-v /esdata/elasticsearch/config/es3.yml:/usr/share/elasticsearch/config/elasticsearch.yml \
-v /esdata/elasticsearch/data/data3/:/usr/share/elasticsearch/data/ \
-v /esdata/elasticsearch/plugins/plugins3/:/usr/share/elasticsearch/plugins \
--restart=always \
--name ES03 \
elasticsearch:7.2.0
防火墙设置
# 防火墙设置
firewall-cmd --add-port=9301/tcp
firewall-cmd --add-port=9302/tcp
firewall-cmd --add-port=9303/tcp
firewall-cmd --add-port=9200/tcp
firewall-cmd --add-port=9201/tcp
firewall-cmd --add-port=9202/tcp
firewall-cmd --add-port=9203/tcp
firewall-cmd --complete-reload
确认集群配置
在浏览器打开 http://192.168.1.127:9200/_cat/nodes?pretty
IK 分词器安装
# 进入容器
docker exec -it ES01 bash
# 在线安装
elasticsearch-plugin install https://github.com/medcl/elasticsearch-analysis-ik/releases/download/v7.2.0/elasticsearch-analysis-ik-7.2.0.zip
# 复制 es1 安装的插件到 es2 和 es3
cp -rf /esdata/elasticsearch/plugins/plugins1/analysis-ik /home/creationpoint/software/elasticsearch/config/plugins2/
cp -rf /esdata/elasticsearch/plugins/plugins1/analysis-ik /home/creationpoint/software/elasticsearch/config/plugins3/
# 重启 es
docker restart ES01
docker restart ES02 ES03
esUI 部署
部署 elasticsearch-head 便于管理 es 数据
docker run -d \
--name=elasticsearch-head \
-p 9100:9100 \
-m 512m \
--memory-swap=1024m \
mobz/elasticsearch-head:5
确认效果
ES 负载均衡
nginx 配置 es负载均衡
修改 nginx 配置文件
#修改 nginx 配置文件
vim /home/jamelli/software/nginx/conf.d/default.conf
->>
upstream es{
least_conn; #把请求转发给连接数较少的后端服务器
server 192.168.1.127:9201;#ES 对应的 ip:port
server 192.168.1.127:9202;
server 192.168.1.127:9203;
}
server {
listen 9210;
server_name localhost;
underscores_in_headers on;
location / {
proxy_set_header Host $host:$server_port;
proxy_redirect off;
proxy_set_header X-Real-IP $remote_addr;
proxy_set_header X-Forwarded-For $proxy_add_x_forwarded_for;
proxy_pass http://es;
}
}
# 重新加载 nginx 使生效(二选一)
docker restart nginx
nginx -s reload
此刻访问服务器的 9210 端口会负载均衡到 es 集群上,测试一下。看下图可以看到已经可以轮询 es 了
来源:https://blog.csdn.net/Jamel_LiToo/article/details/110070741
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