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                ## **Elasticsearch7.6.2 安裝** ## **一. 安裝JDK1.8** ~~~ (1)創建安裝目錄 mkdir /usr/local/java/ (2)解壓至安裝目錄 tar -zxvf jdk-8u251-linux-x64.tar.gz -C /usr/local/java/ (3)設置環境變量 vim /etc/profile 在末尾添加 export JAVA_HOME=/usr/local/java/jdk1.8.0_251 export JRE_HOME=${JAVA_HOME}/jre export CLASSPATH=.:${JAVA_HOME}/lib:${JRE_HOME}/lib export PATH=${JAVA_HOME}/bin:$PATH (4)使環境變量生效 source /etc/profile (5)添加軟鏈接 ln -s /usr/local/java/jdk1.8.0_251/bin/java /usr/bin/java (6)檢查 java -version ~~~ ## **二. 安裝es7** ~~~ (1)創建安裝目錄 mkdir /usr/local/es/ (2)解壓至安裝目錄 tar -zxvf elasticsearch-7.6.2-linux-x86_64.tar.gz -C /usr/local/es/ (3)解壓至安裝目錄 修改配置/usr/local/es/elasticsearch-7.6.2/config/jvm.options,內存占用可以調小一點 ~~~ ![](https://img.kancloud.cn/f1/c2/f1c2d120d0639c908af2c4051eecd7ae_1058x475.png) ~~~ (4)修改配置/usr/local/es/elasticsearch-7.6.2/config/elasticsearch.yml 1.修改數據和日志目錄 ~~~ ![](https://img.kancloud.cn/41/8d/418d1bda0769602835af9d44e40f1b1b_1072x238.png) ~~~ 2.修改綁定ip,允許遠程訪問 ~~~ ![](https://img.kancloud.cn/2c/80/2c802b7dc363294e1dfa4cecc661bc2d_1054x207.png) ~~~ 3.保留一個節點 ~~~ ![](https://img.kancloud.cn/4d/3f/4d3ff0f2fc0c88ba70d056b2a3ea25ea_1167x307.png) ## **三. 修改linux內核參數** **1\. 修改/etc/security/limits.conf 增加下面內容** ~~~ * soft nproc 65535 * hard nproc 65535 * soft nofile 65535 * hard nofile 131072 ~~~ **2\. 修改/etc/sysctl.conf 增加下面內容** ~~~ vm.max_map_count=655360 ~~~ **然后執行命令,使配置生效** ~~~ sysctl -p ~~~ ## **四. 創建賬戶esuser,因為es默認不允許以root賬戶運行** ~~~ //創建用戶組 groupadd esgroup //創建用戶 useradd -g esgroup esuser //設置權限 chown -R esuser:esgroup /usr/local/es/ //設置密碼 passwd esuser ~~~ ## **五. 啟動** ~~~ //切換用戶 su esuser //切換目錄 cd /usr/local/es/elasticsearch-7.6.2/bin //啟動es ./elasticsearch //后臺啟動es ./elasticsearch -d //查找es進程 ps -ef | grep elastic ~~~ ## **六. 訪問** 輸入http://ip:9200,看到返回一串 JSON 格式的代碼就說明已經成功了: ![](https://img.kancloud.cn/ac/99/ac999a08ab72edf40a54103f9efe1df1_615x348.png)
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