使用VMvare創建虛擬機
我的創建的三台分別是：
192.168.115.129 node-1 192.168.115.130 node-2 192.168.115.131 node-3
注意：克隆虛擬機的時候需要修改linux的ip策略為static，否則會導致ip一直在變
1：使用ifconfig命令查看我們Windows的網關
2：編輯虛擬機的ip ，這里只給出一份。其他兩個虛擬機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 # 這里自定義ip，192.168不能變 GATEWAY=192.168.3.1 # 這里是前面Windows查到的網關地址 NAME=ens33 UUID=51ee4604-9cf3-40c9-9d7d-cc10e9eb513e DEVICE=ens33 ONBOOT=yes
3.下載es安裝包
https://artifacts.elastic.co/downloads/elasticsearch/elasticsearch-7.6.2-linux-x86_64.tar.gz
創建存放目錄，然后使用工具上傳
mkdir /usr/local/es/
4.解壓
tar -zxvf elasticsearch-7.6.2-linux-x86_64.tar.gz
5. 修改配置文件
cd ./config vi elasticsearch.yml
這里給出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 # 表示該節點會不會作為主節點，true表示會；false表示不會 node.master: true # 當前節點是否用於存儲數據，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，寫入候選主節點的設備地址，在開啟服務后可以被選為主節點 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 # 判斷結點是否脫離時間配置 discovery.zen.fd.ping_timeout: 60s # 判斷結點是否脫離次數配置 discovery.zen.fd.ping_retries: 5 # es7.x 之后新增的配置，初始化一個新的集群時需要此配置來選舉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 # 表示開啟蛞蝓訪問支持，此值默認為fals http.cors.enabled: true # 表示跨域訪問允許的域名地址，可使用正則表達式，“*”則表示允許所有域名訪問 http.cors.allow-origin: "*"
6. jdk配置，es7.6.2需要依賴jdk11，不過7.0之后es自帶jdk，如果我們自己安裝的jdk，則會優先使用我們安裝的，使用自帶的話則需要修改配置。
具體修改可以參考該博客： https://blog.csdn.net/xiaoxiong_web/article/details/105597150
7.創建普通用戶
es無法使用root用戶啟動，所以我們需要創建一個用戶用於es的啟動
創建用戶組 groupadd esgroup 創建用戶 useradd -g esgroup es 設置權限 chown -R es:esgroup /usr/local/es/ 設置密碼 passwd es
8.修改linux內核參數
需要修改Linux文件打開最大數，否則啟動會報錯
修改/etc/security/limits.conf 增加下面內容
* soft nproc 65535* hard nproc 65535* soft nofile 65535* hard nofile 131072
修改/etc/sysctl.conf 增加內容： vm.max_map_count=655360
然后執行命令，使配置生效： sysctl -p
9.關閉防火牆
systemctl disable firewalld
完成以上步驟之后，開始克隆虛擬機（克隆完整鏡像）
1）克隆完成之后，修改虛擬機的ip（上面有提到）
2）修改es的配置文件 elasticsearch.yml
其他兩個節點只需修改node.name和host
node.name: node-2
twork.host: 192.168.115.130
node.name: node-3
twork.host: 192.168.115.131
到這里就大功告成了，切換到 es的 bin目錄，啟動
cd bin/ 切換到之前創建的普通用戶 su es 啟動 ./elasticsearch
注意：我遇到一個很坑的問題，因為我先啟動一個節點的elasticsearch，然后再拷貝虛擬機去搭建集群，導致后面雖然配置文件沒問題，但是三個節點獨立存在，沒有形成集群，一直以為是配置出了問題，到時候才知道需要刪掉
es的data目錄下的數據，否則不會更新節點信息。