由于Es是Java写的，安装ES的前提先安装好JDK。

Es环境搭建：

1.下载ES包上传到服务器，下载地址：

https://www.elastic.co/cn/downloads/elasticsearch

2.解压下载的Tar包

[[email protected] software]# tar -zxvf elasticsearch-7.6.0-linux-x86_64.tar.gz

3.重命名文件夹名称

[[email protected] software]# mv elasticsearch-7.6.0 elasticsearch

4.进入elasticsearch目录下

[[email protected] software]# cd elasticsearch

5.根据自身条件调整JVM大小

[[email protected] elasticsearch]# vim config/jvm.options

# Xms 表示总堆空间的初始大小 --默认1G

# Xmx 表示总堆空间的最大大小 --默认1G

-Xms1g

-Xmx1g

5.修改elasticsearch.yml配置

[[email protected] elasticsearch]# vim config/elasticsearch.yml

# 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

#

# Set a custom port for HTTP:

# 取消注释，Restful 对外接口提供的端口

http.port: 9200

#

# For more information, consult the network module documentation.

#

# Bootstrap the cluster using an initial set of master-eligible nodes:

# 取消注释，目前单台机器部署，只需保留node-1节点即可

cluster.initial_master_nodes: ["node-1"]

6.由于elasticsearch安全性问题不能使用root启动，如需启动则新建用户，并赋予文件夹权限或者启动命令后追加 --allow-root

[[email protected] elasticsearch]# groupadd esgroup # "eschenxi" (组名)

[[email protected] elasticsearch]# useradd esuser # "eschenxi" (用户名)

[[email protected] elasticsearch]# chown -R eschenxi:esgroup /chenxi/software/elasticsearch #"/chenxi/software/elasticsearch" 为安装目录

7.切换用户

[[email protected] elasticsearch]# su esuser

8.启动ES

[[email protected] elasticsearch]# bin/elasticsearch

#保持后台运行增加-d即可

[[email protected] elasticsearch]# bin/elasticsearch -d

#查看es日志

[[email protected] elasticsearch]# tail -f  logs/elasticsearch.log

##注意防火墙开启9200端口

测试Es启动是否正常：

http://IP:9092

{

"name" : "chenxi",

"cluster_name" : "elasticsearch",

"cluster_uuid" : "_na_",

"version" : {

"number" : "7.6.0",

"build_flavor" : "default",

"build_type" : "tar",

"build_hash" : "7f634e9f44834fbc12724506cc1da681b0c3b1e3",

"build_date" : "2020-02-06T00:09:00.449973Z",

"build_snapshot" : false, "lucene_version" : "8.4.0",

　　　　  "minimum_wire_compatibility_version" : "6.8.0",

　　　　  "minimum_index_compatibility_version" : "6.0.0-beta1"

},

"tagline" : "You Know, for Search"

}

Es启动常见问题：http://chenxitag.es.problem.com

ES集群搭建：http://chenxitag.es.cluster.com

原文地址：https://www.cnblogs.com/chenxitag/p/12320861.html