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在Ubuntu 18.04.1 LTS搭建一个简单的elasticsearch集群demo，具体情况如下：

集群名称：elasticsearch-cluster-demo

elasticsearch 安装

elasticsearch 的安装可以点击参考文章：

拷贝几个es安装包文件夹，进行相应节点的命名，再进行后续的修改配置。

基本集群配置

node-master-one

# 集群名称cluster.name: elasticsearch-cluster-demo## 节点信息node.name: node-master-onenode.master: truenode.data: false## Path to directory where to store the data (separate multiple locations by comma):# es data 存储路径path.data: /home/environment/elasticsearch-cluster/elasticsearch-master-one/data## Path to log files:# log存储路径path.logs: /home/environment/elasticsearch-cluster/elasticsearch-master-one/logs## Set the bind address to a specific IP (IPv4 or IPv6):# 网路监听network.host: 0.0.0.0http.port: 9200transport.tcp.port: 9300## Pass an initial list of hosts to perform discovery when new node is started:# The default list of hosts is ["127.0.0.1", "[::1]"]# 可以发现当前节点的主节点ip:portdiscovery.zen.ping.unicast.hosts: ["127.0.0.1:9300"]# # Prevent the "split brain" by configuring the majority of nodes (total number of master-eligible nodes / 2 + 1):# 集群最小主节点个数#discovery.zen.minimum_master_nodes: 2## 设置跨域问题，方便使用elasticsearch-head来检测集群状态http.cors.enabled: truehttp.cors.allow-origin: /.*/

node-data-one

# 集群名称cluster.name: elasticsearch-cluster-demo## 节点信息node.name: node-data-onenode.master: falsenode.data: true## Path to directory where to store the data (separate multiple locations by comma):# es data 存储路径path.data: /home/environment/elasticsearch-cluster/elasticsearch-data-one/data## Path to log files:# log存储路径path.logs: /home/environment/elasticsearch-cluster/elasticsearch-data-one/logs## Set the bind address to a specific IP (IPv4 or IPv6):# 网路监听network.host: 0.0.0.0http.port: 9210transport.tcp.port: 9310## Pass an initial list of hosts to perform discovery when new node is started:# The default list of hosts is ["127.0.0.1", "[::1]"]# 可以发现当前节点的主节点ip:portdiscovery.zen.ping.unicast.hosts: ["127.0.0.1:9300"]# # Prevent the "split brain" by configuring the majority of nodes (total number of master-eligible nodes / 2 + 1):# 集群最小主节点个数#discovery.zen.minimum_master_nodes: 2## 设置跨域问题，方便使用elasticsearch-head来检测集群状态http.cors.enabled: truehttp.cors.allow-origin: /.*/

node-data-two

# 集群名称cluster.name: elasticsearch-cluster-demo## 节点信息node.name: node-data-twonode.master: falsenode.data: true## Path to directory where to store the data (separate multiple locations by comma):# es data 存储路径path.data: /home/environment/elasticsearch-cluster/elasticsearch-data/two/data## Path to log files:# log存储路径path.logs: /home/environment/elasticsearch-cluster/elasticsearch-data-two/logs## Set the bind address to a specific IP (IPv4 or IPv6):# 网路监听network.host: 0.0.0.0http.port: 9211transport.tcp.port: 9311## Pass an initial list of hosts to perform discovery when new node is started:# The default list of hosts is ["127.0.0.1", "[::1]"]# 可以发现当前节点的主节点ip:portdiscovery.zen.ping.unicast.hosts: ["127.0.0.1:9300"]# # Prevent the "split brain" by configuring the majority of nodes (total number of master-eligible nodes / 2 + 1):# 集群最小主节点个数#discovery.zen.minimum_master_nodes: 2## 设置跨域问题，方便使用elasticsearch-head来检测集群状态http.cors.enabled: truehttp.cors.allow-origin: /.*/

node-client-one

# 集群名称cluster.name: elasticsearch-cluster-demo## 节点信息node.name: node-client-onenode.master: falsenode.data: false## Path to directory where to store the data (separate multiple locations by comma):# es data 存储路径path.data: /home/environment/elasticsearch-cluster/elasticsearch-client-one/data## Path to log files:# log存储路径path.logs: /home/environment/elasticsearch-cluster/elasticsearch-client-one/logs## Set the bind address to a specific IP (IPv4 or IPv6):# 网路监听network.host: 0.0.0.0http.port: 9220transport.tcp.port: 9320## Pass an initial list of hosts to perform discovery when new node is started:# The default list of hosts is ["127.0.0.1", "[::1]"]# 可以发现当前节点的主节点ip:portdiscovery.zen.ping.unicast.hosts: ["127.0.0.1:9300"]# # Prevent the "split brain" by configuring the majority of nodes (total number of master-eligible nodes / 2 + 1):# 集群最小主节点个数#discovery.zen.minimum_master_nodes: 2## 设置跨域问题，方便使用elasticsearch-head来检测集群状态http.cors.enabled: truehttp.cors.allow-origin: /.*/

集群状态检测

当对每一个es节点的配置修改完以后，便可以启动每个节点，在主节点启动后，便可以使用elasticsearch-head来检测es的集群状态，也可以通过查看es的日志来查看节点自动加入集群的情况。

elasticsearch-head项目托管在github上，安装方式可见项目主页的README.txtile文件。项目地址如下:

安装成功后，在接入输入要连接的集群的某一个主节点的ip与端口，连接成功后即可看见该集群的状态，如下图所示：