插件能额外扩展elasticsearch功能，提供各类功能等等。有三种类型的插件：
- java插件
只包含JAR文件，必须在集群中每个节点上安装而且需要重启才能使插件生效。 - 网站插件
这类插件包含静态web内容，如js、css、html等等，可以直接从elasticsearch服务，如head插件。只需在一个节点上安装，不需要重启服务。可以通过下面的URL访问，如：http://node-ip:9200/_plugin/plugin_name - 混合插件
顾名思义，就是包含上面两种的插件。
插件管理
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# ./bin/plugin -h
SYNOPSIS
plugin <command>
COMMANDS
install Install a plugin
remove Remove a plugin
list List installed plugins
NOTES
[*] For usage help on specific commands please type “plugin <command> -h”
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插件安装
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# ./bin/plugin install -h
NAME
install – Install a plugin
SYNOPSIS
plugin install <name or url>
DESCRIPTION
This command installs an elasticsearch plugin. It can be used as follows:
Officially supported or commercial plugins require just the plugin name:
plugin install analysis–icu
plugin install shield
Plugins from GitHub require ‘username/repository’ or ‘username/repository/version’:
plugin install lmenezes/elasticsearch–kopf
plugin install lmenezes/elasticsearch–kopf/1.5.7
Plugins from Maven Central or Sonatype require ‘groupId/artifactId/version’:
plugin install org.elasticsearch/elasticsearch–mapper–attachments/2.6.0
Plugins can be installed from a custom URL or file location as follows:
plugin install http://some.domain.name//my-plugin-1.0.0.zip
plugin install file:/path/to/my–plugin–1.0.0.zip
OFFICIAL PLUGINS
The following plugins are officially supported and can be installed by just referring to their name
– analysis–icu
– analysis–kuromoji
– analysis–phonetic
– analysis–smartcn
– analysis–stempel
– cloud–aws
– cloud–azure
– cloud–gce
– delete–by–query
– discovery–multicast
– lang–javascript
– lang–python
– mapper–murmur3
– mapper–size
OPTIONS
–t,—timeout Timeout until the plugin download is abort
–v,—verbose Verbose output
–h,—help Shows this message
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安装head插件
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bin/plugin install mobz/elasticsearch–head
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安装中文分词插件ik，请参加之前的文章。
安装Marvel插件
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# bin/plugin install license
# bin/plugin install marvel-agent
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这个插件已经集成到kibana上了，kibana内容后续再说，还需要在kibana上安装Marvel插件
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# bin/kibana plugin –install elasticsearch/marvel/latest
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Marvel是收费的，监控工具，推荐使用。2.0版本会报NullPointerException错误，还未找到解决方法。
查看已安装的插件
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# ./bin/plugin list
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删除插件
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# ./bin/plugin remove plugin_name
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文章转载来自：ttlsa.com
