Elasticsearch集群环境搭建

Posted 2021-03-09 chenxitag

Es集群搭建核心思想

   1.配置相同集群名称

   2.配置不同的节点ID

   3.修改X台服务器elasticsearch.yml配置

服务器环境->准备三台服务器集群

 

服务器集群配置：

## 修改elasticsearch.yml文件

[root@chenxi elasticsearch]# vim elasticsearch.yml

# ---------------------------------- Cluster -----------------------------------

#

# Use a descriptive name for your cluster:

# 取消注释，修改节点集群名称，保证三台服务器节点集群名称相同

cluster.name: chenxi

# ------------------------------------ Node ------------------------------------

#

# Use a descriptive name for the node:

# 取消注释，每个节点名称不一样，其他两台为node-2, node-3

node.name: node-1

# ---------------------------------- Network -----------------------------------

#

# Set the bind address to a specific IP (IPv4 or IPv6):

# 取消注释，服务器IP地址

network.host: 192.168.0.1

# --------------------------------- Discovery ----------------------------------

#

# 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]"]

# 取消注释，多个服务器集群IP

discovery.zen.ping.unicast.hosts: ["192.168.0.1","192.168.0.2","192.168.0.3"]

#

# Prevent the "split brain" by configuring the majority of nodes (total number of master-eligible nodes / 2 + 1):

# 取消注释，设置最小主节点为1

discovery.zen.minimum_master_nodes: 1

###关闭防火墙###

注意克隆data文件会导致数据不同步

启动错误信息：

        某台集群服务器报错 failed to send join request to master 时

解决办法：

        清除每台服务器data文件

集群验证地址：

http://192.168.0.1:9200/_cat/nodes?pretty

如成功显示如下：

192.168.0.1 18 93 1 0.00 0.00 0.00 mdi * node-1

192.168.0.2 20 96 2 0.00 0.03 0.11 mdi - node-2

192.168.0.3 20 96 2 0.00 0.05 0.11 mdi - node-3