使用VMvare创建虚拟机
我的创建的三台分别是：
192.168.115.129 node-1 192.168.115.130 node-2 192.168.115.131 node-3
注意：克隆虚拟机的时候需要修改linux的ip策略为static，否则会导致ip一直在变
1：使用ifconfig命令查看我们Windows的网关
2：编辑虚拟机的ip ，这里只给出一份。其他两个虚拟机在克隆之后修改即可。
vi /etc/sysconfig/network-scripts/ifcfg-ens33
TYPE=Ethernet PROXY_METHOD=none BROWSER_ONLY=no BOOTPROTO=static DEFROUTE=yes IPV4_FAILURE_FATAL=no IPV6INIT=yes IPV6_AUTOCONF=yes IPV6_DEFROUTE=yes IPV6_FAILURE_FATAL=no IPV6_ADDR_GEN_MODE=stable-privacy IPADDR=192.168.115.130 # 这里自定义ip，192.168不能变 GATEWAY=192.168.3.1 # 这里是前面Windows查到的网关地址 NAME=ens33 UUID=51ee4604-9cf3-40c9-9d7d-cc10e9eb513e DEVICE=ens33 ONBOOT=yes
3.下载es安装包
https://artifacts.elastic.co/downloads/elasticsearch/elasticsearch-7.6.2-linux-x86_64.tar.gz
创建存放目录，然后使用工具上传
mkdir /usr/local/es/
4.解压
tar -zxvf elasticsearch-7.6.2-linux-x86_64.tar.gz
5. 修改配置文件
cd ./config vi elasticsearch.yml
这里给出node1的配置文件
# ======================== Elasticsearch Configuration ========================= # # NOTE: Elasticsearch comes with reasonable defaults for most settings. # Before you set out to tweak and tune the configuration, make sure you # understand what are you trying to accomplish and the consequences. # # The primary way of configuring a node is via this file. This template lists # the most important settings you may want to configure for a production cluster. # # Please consult the documentation for further information on configuration options: # https://www.elastic.co/guide/en/elasticsearch/reference/index.html # # ---------------------------------- Cluster ----------------------------------- # # Use a descriptive name for your cluster: # cluster.name: my-elasticsearch # # ------------------------------------ Node ------------------------------------ # # Use a descriptive name for the node: # node.name: node-1 # # Add custom attributes to the node: # #node.attr.rack: r1 # 表示该节点会不会作为主节点，true表示会；false表示不会 node.master: true # 当前节点是否用于存储数据，是：true、否：false node.data: true # # ----------------------------------- Paths ------------------------------------ # # Path to directory where to store the data (separate multiple locations by comma): # path.data: /usr/local/es/elasticsearch-7.6.2/data # # Path to log files: # path.logs: /usr/local/es/elasticsearch-7.6.2/logs # # ----------------------------------- Memory ----------------------------------- # # Lock the memory on startup: # bootstrap.memory_lock: false # # Make sure that the heap size is set to about half the memory available # on the system and that the owner of the process is allowed to use this # limit. # # Elasticsearch performs poorly when the system is swapping the memory. # # ---------------------------------- Network ----------------------------------- # # Set the bind address to a specific IP (IPv4 or IPv6): # network.host: 192.168.115.129 # # Set a custom port for HTTP: # http.port: 9200 transport.tcp.port: 9300 # # For more information, consult the network module documentation. # # --------------------------------- Discovery ---------------------------------- # # Pass an initial list of hosts to perform discovery when this node is started: # The default list of hosts is ["127.0.0.1", "[::1]"] # # es7.x 之后新增的配置，写入候选主节点的设备地址，在开启服务后可以被选为主节点 discovery.seed_hosts: ["192.168.115.129","192.168.115.130","192.168.115.131"] # # Bootstrap the cluster using an initial set of master-eligible nodes: discovery.zen.minimum_master_nodes: 2 # 判断结点是否脱离时间配置 discovery.zen.fd.ping_timeout: 60s # 判断结点是否脱离次数配置 discovery.zen.fd.ping_retries: 5 # es7.x 之后新增的配置，初始化一个新的集群时需要此配置来选举master cluster.initial_master_nodes: ["node-1","node-2","node-3"] # # For more information, consult the discovery and cluster formation module documentation. # # ---------------------------------- Gateway ----------------------------------- # # Block initial recovery after a full cluster restart until N nodes are started: # # gateway.recover_after_nodes: 3 # # For more information, consult the gateway module documentation. # # ---------------------------------- Various ----------------------------------- # # Require explicit names when deleting indices: # #action.destructive_requires_name: true # 表示开启蛞蝓访问支持，此值默认为fals http.cors.enabled: true # 表示跨域访问允许的域名地址，可使用正则表达式，“*”则表示允许所有域名访问 http.cors.allow-origin: "*"
6. jdk配置，es7.6.2需要依赖jdk11，不过7.0之后es自带jdk，如果我们自己安装的jdk，则会优先使用我们安装的，使用自带的话则需要修改配置。
具体修改可以参考该博客： https://blog.csdn.net/xiaoxiong_web/article/details/105597150
7.创建普通用户
es无法使用root用户启动，所以我们需要创建一个用户用于es的启动
创建用户组 groupadd esgroup 创建用户 useradd -g esgroup es 设置权限 chown -R es:esgroup /usr/local/es/ 设置密码 passwd es
8.修改linux内核参数
需要修改Linux文件打开最大数，否则启动会报错
修改/etc/security/limits.conf 增加下面内容
* soft nproc 65535* hard nproc 65535* soft nofile 65535* hard nofile 131072
修改/etc/sysctl.conf 增加内容： vm.max_map_count=655360
然后执行命令，使配置生效： sysctl -p
9.关闭防火墙
systemctl disable firewalld
完成以上步骤之后，开始克隆虚拟机（克隆完整镜像）
1）克隆完成之后，修改虚拟机的ip（上面有提到）
2）修改es的配置文件 elasticsearch.yml
其他两个节点只需修改node.name和host
node.name: node-2
twork.host: 192.168.115.130
node.name: node-3
twork.host: 192.168.115.131
到这里就大功告成了，切换到 es的 bin目录，启动
cd bin/ 切换到之前创建的普通用户 su es 启动 ./elasticsearch
注意：我遇到一个很坑的问题，因为我先启动一个节点的elasticsearch，然后再拷贝虚拟机去搭建集群，导致后面虽然配置文件没问题，但是三个节点独立存在，没有形成集群，一直以为是配置出了问题，到时候才知道需要删掉
es的data目录下的数据，否则不会更新节点信息。