linux安装Elasticsearch详细步骤

发布时间：2020-12-14 00:41:50 所属栏目：Linux 来源：网络整理

导读：坑都已经踩好了?照着步骤一次成功??不多废话?走起 #?##?安装java运行环境 elasticsearch是用Java实现的?跑elasticsearch必须要有jre支持?所以必须先安装jre 可以参考 https://www.cnblogs.com/renxixao/p/11462752.html #?##?安装elasticsearch-6.2.4 解压后

坑都已经踩好了?照着步骤一次成功??不多废话?走起

#?##?安装java运行环境

elasticsearch是用Java实现的?跑elasticsearch必须要有jre支持?所以必须先安装jre

可以参考 https://www.cnblogs.com/renxixao/p/11462752.html

#?##?安装elasticsearch-6.2.4

解压后启动?elasticsearch

[[email?protected] ~]# wget https://artifacts.elastic.co/downloads/elasticsearch/elasticsearch-6.2.4.tar.gz
[[email?protected] ~]# tar -zxvf elasticsearch-6.2.4.tar.gz -C /usr/local/
[[email?protected]?~]#?sh?/usr/local/elasticsearch-6.2.4/bin/elasticsearch

发现报错了?

从5.0开始?elasticsearch?安全级别提高了?不允许采用root帐号启动所以我们要添加一个用户用来启动?elasticsearch

开始之前先把防火墙关了耽误事??

[[email?protected] ~]# systemctl stop firewalld.service
[[email?protected]~]# systemctl disable firewalld.service//禁止防火墙开机启动
[[email?protected] ~]# useradd es//创建es用户
[[email?protected] ~]# chown -R es:es /usr/local/elasticsearch-6.2.4///把目录权限赋予给es用户
[[email?protected] ~]# su es//切换至es用户
[[email?protected] root]$ vi /usr/local/elasticsearch-6.2.4/config/elasticsearch.yml

把?host改为本机地址

记得把前面注释#删掉再执行?sh?/usr/local/elasticsearch-6.2.4/bin/elasticsearch

执行sh?/usr/local/elasticsearch-6.2.4/bin/elasticsearch后可能会出现几种报错情况

注意：以下操作都要切换到root下执行

[1]:?max?file?descriptors?[4096]?for?elasticsearch?process?is?too?low,?increase?to?at?least?[65536]

修改/etc/security/limits.conf文件?在文件末尾添加如下

[[email?protected] root]$ su root
[[email?protected]~]# vi /etc/security/limits.conf

*?????? hard??? nofile???????????65536

*?????? soft?????nofile???????????65536

[2]:?max?number?of?threads?[3818]?for?user?[es]?is?too?low,?increase?to?at?least?[4096]

[[email?protected] ~]# vi /etc/security/limits.d/20-nproc.conf

*??? ? ? ? ? soft??????????? nproc?????4096

*??????????? hard? ? ? ??? nproc???? 4096

root???????soft??????????? nproc?????unlimited

[3]:?max?virtual?memory?areas?vm.max_map_count?[65530]?is?too?low,?increase?to?at?least?[262144]

/etc/sysctl.conf文件末尾添加?vm.max_map_count?=?2621441

[[email?protected] ~]# vi  /etc/sysctl.conf
[[email?protected]~]# sudo sysctl -p /etc/sysctl.conf//立即生效

以上三个是常见的三个错误?其余的请自行百度

[[email?protected] ~]# ulimit -a

发现当前最大线程数还是为3818??别慌?重启下虚拟机?重启后才能生效

接着切换到es用户启动

[[email?protected] ~]# su es
[[email?protected] root]$ sh/usr/local/elasticsearch-6.2.4/bin/elasticsearch -d     //加-d就是启动后台进程
[[email?protected] root]$ ps -ef|grep elasticsearch
验证下服务是否正常运行 curl  http://192.168.88.133:9200

出来这个?说明配置OK

浏览器请求下?http://192.168.88.133:9200/

（编辑：李大同）

【声明】本站内容均来自网络，其相关言论仅代表作者个人观点，不代表本站立场。若无意侵犯到您的权利，请及时与联系站长删除相关内容!