ElasticSearch 的安装启动，ElasticSearch在liunx centos7上的安装启动，以及配置外网访问

向右看齐 2023-06-23 10:57 18阅读 0赞

ElasticSearch 的官网下载地址: [https://www.elastic.co/cn/downloads/][https_www.elastic.co_cn_downloads]  ![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2h1cWlhbmt1bmxvbA_size_16_color_FFFFFF_t_70][]

点击 历史版本这里有不同的版本，注意不同版本要求的最低jdk版本,所以前提我们要先安装好 jdk

首先我们登陆进去我们的 centos系统，进行下载，这里是 6.4.3 版本

[root@izuf61dyfw79gxbgnrcyqsz ~]# cd /usr/local/
    [root@izuf61dyfw79gxbgnrcyqsz local]# wget https://artifacts.elastic.co/downloads/elasticsearch/elasticsearch-6.4.3.tar.gz

下载之后我们进行解压，然后重命名文件夹

[root@izuf61dyfw79gxbgnrcyqsz local]# tar -zxvf elasticsearch-6.4.3.tar.gz
    [root@izuf61dyfw79gxbgnrcyqsz local]# mv elasticsearch-6.4.3  elasticsearch

如果你的 centos 内存较小的话，需要更改配置，进入 elasticsearch 的config 目录下，修改 jvm.options ,默认是 1g 修改如下

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2h1cWlhbmt1bmxvbA_size_16_color_FFFFFF_t_70 1][]

使用 root 用户启动会报错，接下来我们创建一个新的用户，叫 es

[root@izuf61dyfw79gxbgnrcyqsz local]# adduser es
    [root@izuf61dyfw79gxbgnrcyqsz local]# passwd es

接下来输入两次密码即可,然后赋予 es 用户这个文件夹的权限

[root@izuf61dyfw79gxbgnrcyqsz local]# chown -R es /usr/local/elasticsearch

接下来我们切换到 es 用户

[root@izuf61dyfw79gxbgnrcyqsz config]# su - es

进入 elasticsearch的 bin目录

[root@izuf61dyfw79gxbgnrcyqsz local]# cd /usr/local/elasticsearch/bin/
    [root@izuf61dyfw79gxbgnrcyqsz bin]# ./elasticsearch

curl一下，出现下面就安装成功了

[root@izuf61dyfw79gxbgnrcyqsz ~]# curl 'http://localhost:9200/?pretty'
    {
      "name" : "9MogmBy",
      "cluster_name" : "elasticsearch",
      "cluster_uuid" : "OVm-CrKmRyyfmbqYWaVsIg",
      "version" : {
        "number" : "6.4.3",
        "build_flavor" : "default",
        "build_type" : "tar",
        "build_hash" : "fe40335",
        "build_date" : "2018-10-30T23:17:19.084789Z",
        "build_snapshot" : false,
        "lucene_version" : "7.4.0",
        "minimum_wire_compatibility_version" : "5.6.0",
        "minimum_index_compatibility_version" : "5.0.0"
      },
      "tagline" : "You Know, for Search"
    }
    [root@izuf61dyfw79gxbgnrcyqsz ~]#

如果要配置外网访问，还需要修改几处，首先更改 config下面的 elasticsearch.yml 配置文件

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2h1cWlhbmt1bmxvbA_size_16_color_FFFFFF_t_70 2][]

然后需要切换到 root 用户，更改两处配置, 首先

vim  /etc/security/limits.conf

追下如下配置

* soft nofile 65536
    * hard nofile 65536

然后

vim  /etc/sysctl.conf

追加如下配置

vm.max_map_count=655360

两处保存后执行

sysctl -p

因为我的是阿里云的服务器，需要配置安全组，开放9200端口![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2h1cWlhbmt1bmxvbA_size_16_color_FFFFFF_t_70 3][]

然后切换到 es 用户，重新启动，即可通过外网ip访问

![watermark_type_ZmFuZ3poZW5naGVpdGk_shadow_10_text_aHR0cHM6Ly9ibG9nLmNzZG4ubmV0L2h1cWlhbmt1bmxvbA_size_16_color_FFFFFF_t_70 4][]

[https_www.elastic.co_cn_downloads]: https://www.elastic.co/cn/downloads/
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