ElasticSearch 安装插件

一、安装elasticsearch-analysis-ik插件

https://github.com/medcl/elasticsearch-analysis-ik/releases
插件github地址，选择与ElasticSearch版本相同的版本。

二、使用elasticsearch-plugin安装插件

/usr/share/elasticsearch/bin/elasticsearch-plugin -v install https://github.com/medcl/elasticsearch-analysis-ik/releases/download/v7.17.7/elasticsearch-analysis-ik-7.17.7.zip

#在每个节点都执行安装
#安装完成后重启服务。

直接下载并安装，输出如下：

-> Installing https://github.com/medcl/elasticsearch-analysis-ik/releases/download/v7.17.7/elasticsearch-analysis-ik-7.17.7.zip
-> Downloading https://github.com/medcl/elasticsearch-analysis-ik/releases/download/v7.17.7/elasticsearch-analysis-ik-7.17.7.zip
[=================================================] 100%   
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
@     WARNING: plugin requires additional permissions     @
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
* java.net.SocketPermission * connect,resolve
See https://docs.oracle.com/javase/8/docs/technotes/guides/security/permissions.html
for descriptions of what these permissions allow and the associated risks.

Continue with installation? [y/N]y
-> Installed analysis-ik
-> Please restart Elasticsearch to activate any plugins installed

三、离线安装插件

如果网络不好，无法通过网络安装，则下载zip包，手动安装

/usr/share/elasticsearch/bin/elasticsearch-plugin install file:///path/to/plugin.zip