Docker 搭建 elasticsearch 集群
前置工作
1.虚拟机内存设置起码2个g以上,不然巨卡
2.需要修改linux的进程数限制
vi /etc/sysctl.conf vm.max_map_count=655360 sysctl -p
创建es集群
1.下载es镜像
docker pull elasticsearch:5.6.11
2.添加挂载的配置文件与文件夹
mkdir -p /mydata/elasticsearch/conf/ mkdir -p /mydata/elasticsearch2/conf/ mkdir -p /mydata/elasticsearch3/conf/
创建配置文件es1
# 开启跨域,为了让es-head可以访问 http.cors.enabled: true http.cors.allow-origin: "*" # 集群的名称 cluster.name: elasticsearch # 节点的名称 node.name: es1 # 指定该节点是否有资格被选举成为master节点,默认是true,es是默认集群中的第一台机器为master,如果这台机挂了就会重新选举master node.master: true # 允许该节点存储数据(默认开启) node.data: true # 允许任何ip访问 network.host: 0.0.0.0 # 通过这个ip列表进行节点发现,我这里配置的是各个容器的ip discovery.zen.ping.unicast.hosts: ["192.168.31.128:9300","192.168.31.128:9301","192.168.31.128:9302"] #如果没有这种设置,遭受网络故障的集群就有可能将集群分成两个独立的集群 – 导致脑裂 - 这将导致数据丢失 discovery.zen.minimum_master_nodes: 2
创建配置文件es2
http.cors.enabled: true http.cors.allow-origin: "*" cluster.name: elasticsearch node.name: es2 network.host: 0.0.0.0 node.master: true node.data: true discovery.zen.ping.unicast.hosts: ["192.168.31.128:9300","192.168.31.128:9301","192.168.31.128:9302"] discovery.zen.minimum_master_nodes: 2
创建配置文件es3
http.cors.enabled: true http.cors.allow-origin: "*" cluster.name: elasticsearch node.name: es3 network.host: 0.0.0.0 node.master: true node.data: true discovery.zen.ping.unicast.hosts: ["192.168.31.128:9300","192.168.31.128:9301","192.168.31.128:9302"] discovery.zen.minimum_master_nodes: 2
3.集群化实例启动
实例一:
docker run --name es1 -p 9200:9200 -p 9300:9300 \ -e ES_JAVA_OPTS="-Xms256m -Xmx256m" \ -v /mydata/elasticsearch/conf/elasticsearch.yml:/usr/share/elasticsearch/config/elasticsearch.yml \ -v /mydata/elasticsearch/data:/usr/share/elasticsearch/data -d elasticsearch:5.6.11
实例二:
docker run --name es2 -p 9201:9200 -p 9301:9300 \ -e ES_JAVA_OPTS="-Xms256m -Xmx256m" \ -v /mydata/elasticsearch2/conf/elasticsearch.yml:/usr/share/elasticsearch/config/elasticsearch.yml \ -v /mydata/elasticsearch2/data:/usr/share/elasticsearch/data -d elasticsearch:5.6.11
实例三:
docker run --name es3 -p 9202:9200 -p 9302:9300 \ -e ES_JAVA_OPTS="-Xms256m -Xmx256m" \ -v /mydata/elasticsearch3/conf/elasticsearch.yml:/usr/share/elasticsearch/config/elasticsearch.yml \ -v /mydata/elasticsearch3/data:/usr/share/elasticsearch/data -d elasticsearch:5.6.11