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Centos安装Elasticsearch环境

晨曦 发布于 阅读:189 Elasticsearch


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

[root@chenxi software]# tar -zxvf elasticsearch-7.6.0-linux-x86_64.tar.gz

3.重命名文件夹名称

[root@chenxi software]# mv elasticsearch-7.6.0 elasticsearch

4.进入elasticsearch目录下

[root@chenxi software]# cd elasticsearch

5.根据自身条件调整JVM大小

[root@chenxi 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

[root@chenxi elasticsearch]# vim config/elasticsearch.yml

------------------------------------ Node ------------------------------------

#

Use a descriptive name for the node:

打开注释,节点名称可自己定义,如果是集群部署,则节点名称必须不相同

node.name: node-1

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,新建用户,并赋予文件夹权限或者启动命令后追加 –allow-root
[root@chenxi elasticsearch]# groupadd esgroup # "eschenxi" (组名)
[root@chenxi elasticsearch]# useradd esuser # "eschenxi" (用户名)

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

7.切换用户

[root@chenxi elasticsearch]# su esuser

8.启动ES

[esuser@chenxi elasticsearch]# bin/elasticsearch

保持后台运行增加-d即可

[esuser@chenxi elasticsearch]# bin/elasticsearch -d

查看es日志

[esuser@chenxi 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

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