IK分词器插件
（1）源码
https://github.com/medcl/elasticsearch-analysis-ik
（2）releases
https://github.com/medcl/elasticsearch-analysis-ik/releases
4.2 安装插件
（1）elasticsearch-plugin
[es@node1 elasticsearch-6.1.1]$ bin/elasticsearch-plugin install https://github.com/medcl/elasticsearch-analysis-ik/releases/download/v6.1.1/elasticsearch-analysis-ik-6.1.1.zip
-> Downloading https://github.com/medcl/elasticsearch-analysis-ik/releases/download/v6.1.1/elasticsearch-analysis-ik-6.1.1.zip
[=================================================] 100%
-> Installed analysis-ik
[es@node1 elasticsearch-6.1.1]$ ll plugins/
total 0
drwxr-xr-x 2 es es 199 Jan 7 08:52 analysis-ik
[es@node1 elasticsearch-6.1.1]$ （2）查看目录
[es@node1 elasticsearch-6.1.1]$ ll plugins/analysis-ik/
total 1420
-rw-r--r-- 1 es es 263965 Jan 7 08:52 commons-codec-1.9.jar
-rw-r--r-- 1 es es 61829 Jan 7 08:52 commons-logging-1.2.jar
-rw-r--r-- 1 es es 51658 Jan 7 08:52 elasticsearch-analysis-ik-6.1.1.jar
-rw-r--r-- 1 es es 736658 Jan 7 08:52 httpclient-4.5.2.jar
-rw-r--r-- 1 es es 326724 Jan 7 08:52 httpcore-4.4.4.jar
-rw-r--r-- 1 es es 2666 Jan 7 08:52 plugin-descriptor.properties
[es@node1 elasticsearch-6.1.1]$ 4.3 重启elasticsearch
[es@node1 elasticsearch-6.1.1]$ bin/elasticsearch
[2018-01-07T09:01:17,283][INFO ][o.e.n.Node ] [] initializing ...
[2018-01-07T09:01:17,421][INFO ][o.e.e.NodeEnvironment ] [cNWkQjt] using [1] data paths, mounts [[/ (rootfs)]], net usable_space [14.3gb], net total_space [21.9gb], types [rootfs]
[2018-01-07T09:01:17,422][INFO ][o.e.e.NodeEnvironment ] [cNWkQjt] heap size [1007.3mb], compressed ordinary object pointers [true]
[2018-01-07T09:01:17,484][INFO ][o.e.n.Node ] node name [cNWkQjt] derived from node ID [cNWkQjt9SzKFNtyx8IIu-A]; set [node.name] to override
[2018-01-07T09:01:17,484][INFO ][o.e.n.Node ] version[6.1.1], pid[3445], build[bd92e7f/2017-12-17T20:23:25.338Z], OS[Linux/3.10.0-514.el7.x86_64/amd64], JVM[Oracle Corporation/Java HotSpot(TM) 64-Bit Server VM/1.8.0_112/25.112-b15]
[2018-01-07T09:01:17,485][INFO ][o.e.n.Node ] JVM arguments [-Xms1g, -Xmx1g, -XX:+UseConcMarkSweepGC, -XX:CMSInitiatingOccupancyFraction=75, -XX:+UseCMSInitiatingOccupancyOnly, -XX:+AlwaysPreTouch, -Xss1m, -Djava.awt.headless=true, -Dfile.encoding=UTF-8, -Djna.nosys=true, -XX:-OmitStackTraceInFastThrow, -Dio.netty.noUnsafe=true, -Dio.netty.noKeySetOptimization=true, -Dio.netty.recycler.maxCapacityPerThread=0, -Dlog4j.shutdownHookEnabled=false, -Dlog4j2.disable.jmx=true, -XX:+HeapDumpOnOutOfMemoryError, -Des.path.home=/opt/elasticsearch-6.1.1, -Des.path.conf=/opt/elasticsearch-6.1.1/config]
[2018-01-07T09:01:19,000][INFO ][o.e.p.PluginsService ] [cNWkQjt] loaded module [aggs-matrix-stats]
[2018-01-07T09:01:19,000][INFO ][o.e.p.PluginsService ] [cNWkQjt] loaded module [analysis-common]
[2018-01-07T09:01:19,000][INFO ][o.e.p.PluginsService ] [cNWkQjt] loaded module [ingest-common]
[2018-01-07T09:01:19,001][INFO ][o.e.p.PluginsService ] [cNWkQjt] loaded module [lang-expression]
[2018-01-07T09:01:19,001][INFO ][o.e.p.PluginsService ] [cNWkQjt] loaded module [lang-mustache]
[2018-01-07T09:01:19,001][INFO ][o.e.p.PluginsService ] [cNWkQjt] loaded module [lang-painless]
[2018-01-07T09:01:19,001][INFO ][o.e.p.PluginsService ] [cNWkQjt] loaded module [mapper-extras]
[2018-01-07T09:01:19,001][INFO ][o.e.p.PluginsService ] [cNWkQjt] loaded module [parent-join]
[2018-01-07T09:01:19,002][INFO ][o.e.p.PluginsService ] [cNWkQjt] loaded module [percolator]
[2018-01-07T09:01:19,002][INFO ][o.e.p.PluginsService ] [cNWkQjt] loaded module [reindex]
[2018-01-07T09:01:19,002][INFO ][o.e.p.PluginsService ] [cNWkQjt] loaded module [repository-url]
[2018-01-07T09:01:19,002][INFO ][o.e.p.PluginsService ] [cNWkQjt] loaded module [transport-netty4]
[2018-01-07T09:01:19,002][INFO ][o.e.p.PluginsService ] [cNWkQjt] loaded module [tribe]
[2018-01-07T09:01:19,003][INFO ][o.e.p.PluginsService ] [cNWkQjt] loaded plugin [analysis-ik]
[2018-01-07T09:01:21,678][INFO ][o.e.d.DiscoveryModule ] [cNWkQjt] using discovery type [zen]
[2018-01-07T09:01:22,567][INFO ][o.e.n.Node ] initialized
[2018-01-07T09:01:22,568][INFO ][o.e.n.Node ] [cNWkQjt] starting ...
[2018-01-07T09:01:22,803][INFO ][o.e.t.TransportService ] [cNWkQjt] publish_address {192.168.80.131:9300}, bound_addresses {192.168.80.131:9300}
[2018-01-07T09:01:22,837][INFO ][o.e.b.BootstrapChecks ] [cNWkQjt] bound or publishing to a non-loopback or non-link-local address, enforcing bootstrap checks
[2018-01-07T09:01:25,940][INFO ][o.e.c.s.MasterService ] [cNWkQjt] zen-disco-elected-as-master ([0] nodes joined), reason: new_master {cNWkQjt}{cNWkQjt9SzKFNtyx8IIu-A}{Xvho5gpPTuavakz227C_uA}{192.168.80.131}{192.168.80.131:9300}
[2018-01-07T09:01:25,949][INFO ][o.e.c.s.ClusterApplierService] [cNWkQjt] new_master {cNWkQjt}{cNWkQjt9SzKFNtyx8IIu-A}{Xvho5gpPTuavakz227C_uA}{192.168.80.131}{192.168.80.131:9300}, reason: apply cluster state (from master [master {cNWkQjt}{cNWkQjt9SzKFNtyx8IIu-A}{Xvho5gpPTuavakz227C_uA}{192.168.80.131}{192.168.80.131:9300} committed version [1] source [zen-disco-elected-as-master ([0] nodes joined)]])
[2018-01-07T09:01:25,993][INFO ][o.e.h.n.Netty4HttpServerTransport] [cNWkQjt] publish_address {192.168.80.131:9200}, bound_addresses {192.168.80.131:9200}
[2018-01-07T09:01:25,993][INFO ][o.e.n.Node ] [cNWkQjt] started
[2018-01-07T09:01:26,077][INFO ][o.w.a.d.Monitor ] try load config from /opt/elasticsearch-6.1.1/config/analysis-ik/IKAnalyzer.cfg.xml
[2018-01-07T09:01:26,799][INFO ][o.e.g.GatewayService ] [cNWkQjt] recovered [2] indices into cluster_state
[2018-01-07T09:01:27,526][INFO ][o.e.c.r.a.AllocationService] [cNWkQjt] Cluster health status changed from [RED] to [YELLOW] (reason: [shards started [[test][2], [test][0]] ...]).4.3 测试IK中文分词器的基本功能
（1）ik_smart
其中pretty本意”漂亮的”，表示以美观的形式打印出JSON格式响应。
GET _analyze?pretty
{
"analyzer": "ik_smart",
"text":"安徽省长江流域"
}分词结果
{
"tokens": [ { "token": "安徽省", "start_offset": 0, "end_offset": 3, "type": "CN_WORD", "position": 0 }, { "token": "长江流域", "start_offset": 3, "end_offset": 7, "type": "CN_WORD", "position": 1 } ] }
（2）ik_max_word
GET _analyze?pretty
{
"analyzer": "ik_max_word",
"text":"安徽省长江流域"
}分词结果
{
"tokens": [ { "token": "安徽省", "start_offset": 0, "end_offset": 3, "type": "CN_WORD", "position": 0 }, { "token": "安徽", "start_offset": 0, "end_offset": 2, "type": "CN_WORD", "position": 1 }, { "token": "省长", "start_offset": 2, "end_offset": 4, "type": "CN_WORD", "position": 2 }, { "token": "长江流域", "start_offset": 3, "end_offset": 7, "type": "CN_WORD", "position": 3 }, { "token": "长江", "start_offset": 3, "end_offset": 5, "type": "CN_WORD", "position": 4 }, { "token": "江流", "start_offset": 4, "end_offset": 6, "type": "CN_WORD", "position": 5 }, { "token": "流域", "start_offset": 5, "end_offset": 7, "type": "CN_WORD", "position": 6 } ] }
（3）新词
GET _analyze?pretty
{
"analyzer": "ik_smart",
"text": "王者荣耀"
}分词结果
{
"tokens": [ { "token": "王者", "start_offset": 0, "end_offset": 2, "type": "CN_WORD", "position": 0 }, { "token": "荣耀", "start_offset": 2, "end_offset": 4, "type": "CN_WORD", "position": 1 } ] }
4.4 扩展字典
（1）查看已有词典
[es@node1 analysis-ik]$ pwd
/opt/elasticsearch-6.1.1/config/analysis-ik
[es@node1 analysis-ik]$ ll
total 8260
-rw-rw---- 1 es bigdata 5225922 Jan 7 08:52 extra_main.dic -rw-rw---- 1 es bigdata 63188 Jan 7 08:52 extra_single_word.dic -rw-rw---- 1 es bigdata 63188 Jan 7 08:52 extra_single_word_full.dic -rw-rw---- 1 es bigdata 10855 Jan 7 08:52 extra_single_word_low_freq.dic -rw-rw---- 1 es bigdata 156 Jan 7 08:52 extra_stopword.dic -rw-rw---- 1 es bigdata 625 Jan 7 08:52 IKAnalyzer.cfg.xml -rw-rw---- 1 es bigdata 3058510 Jan 7 08:52 main.dic -rw-rw---- 1 es bigdata 123 Jan 7 08:52 preposition.dic -rw-rw---- 1 es bigdata 1824 Jan 7 08:52 quantifier.dic -rw-rw---- 1 es bigdata 164 Jan 7 08:52 stopword.dic -rw-rw---- 1 es bigdata 192 Jan 7 08:52 suffix.dic -rw-rw---- 1 es bigdata 752 Jan 7 08:52 surname.dic [es@node1 analysis-ik]$（2）自定义词典
[es@node1 analysis-ik]$ mkdir custom
[es@node1 analysis-ik]$ vi custom/new_word.dic
[es@node1 analysis-ik]$ cat custom/new_word.dic
老铁
王者荣耀
洪荒之力
共有产权房
一带一路
[es@node1 analysis-ik]$ （3）更新配置
[es@node1 analysis-ik]$ vi IKAnalyzer.cfg.xml
[es@node1 analysis-ik]$ cat IKAnalyzer.cfg.xml
<?xml version="1.0" encoding="UTF-8"?>
<!DOCTYPE properties SYSTEM "http://java.sun.com/dtd/properties.dtd">
<properties>
<comment>IK Analyzer 扩展配置</comment>
<!--用户可以在这里配置自己的扩展字典 -->
<entry key="ext_dict">custom/new_word.dic</entry>
<!--用户可以在这里配置自己的扩展停止词字典-->
<entry key="ext_stopwords"></entry>
<!--用户可以在这里配置远程扩展字典 -->
<!-- <entry key="remote_ext_dict">words_location</entry> -->
<!--用户可以在这里配置远程扩展停止词字典-->
<!-- <entry key="remote_ext_stopwords">words_location</entry> -->
</properties>
[es@node1 analysis-ik]$（4）重启elasticsearch
[es@node1 elasticsearch-6.1.1]$ bin/elasticsearch
[2018-01-07T10:00:23,032][INFO ][o.e.n.Node ] [] initializing ...
[2018-01-07T10:00:23,170][INFO ][o.e.e.NodeEnvironment ] [cNWkQjt] using [1] data paths, mounts [[/ (rootfs)]], net usable_space [14.3gb], net total_space [21.9gb], types [rootfs]
[2018-01-07T10:00:23,171][INFO ][o.e.e.NodeEnvironment ] [cNWkQjt] heap size [1007.3mb], compressed ordinary object pointers [true]
[2018-01-07T10:00:23,209][INFO ][o.e.n.Node ] node name [cNWkQjt] derived from node ID [cNWkQjt9SzKFNtyx8IIu-A]; set [node.name] to override
[2018-01-07T10:00:23,210][INFO ][o.e.n.Node ] version[6.1.1], pid[3574], build[bd92e7f/2017-12-17T20:23:25.338Z], OS[Linux/3.10.0-514.el7.x86_64/amd64], JVM[Oracle Corporation/Java HotSpot(TM) 64-Bit Server VM/1.8.0_112/25.112-b15]
[2018-01-07T10:00:23,210][INFO ][o.e.n.Node ] JVM arguments [-Xms1g, -Xmx1g, -XX:+UseConcMarkSweepGC, -XX:CMSInitiatingOccupancyFraction=75, -XX:+UseCMSInitiatingOccupancyOnly, -XX:+AlwaysPreTouch, -Xss1m, -Djava.awt.headless=true, -Dfile.encoding=UTF-8, -Djna.nosys=true, -XX:-OmitStackTraceInFastThrow, -Dio.netty.noUnsafe=true, -Dio.netty.noKeySetOptimization=true, -Dio.netty.recycler.maxCapacityPerThread=0, -Dlog4j.shutdownHookEnabled=false, -Dlog4j2.disable.jmx=true, -XX:+HeapDumpOnOutOfMemoryError, -Des.path.home=/opt/elasticsearch-6.1.1, -Des.path.conf=/opt/elasticsearch-6.1.1/config]
[2018-01-07T10:00:24,717][INFO ][o.e.p.PluginsService ] [cNWkQjt] loaded module [aggs-matrix-stats]
[2018-01-07T10:00:24,717][INFO ][o.e.p.PluginsService ] [cNWkQjt] loaded module [analysis-common]
[2018-01-07T10:00:24,718][INFO ][o.e.p.PluginsService ] [cNWkQjt] loaded module [ingest-common]
[2018-01-07T10:00:24,718][INFO ][o.e.p.PluginsService ] [cNWkQjt] loaded module [lang-expression]
[2018-01-07T10:00:24,718][INFO ][o.e.p.PluginsService ] [cNWkQjt] loaded module [lang-mustache]
[2018-01-07T10:00:24,718][INFO ][o.e.p.PluginsService ] [cNWkQjt] loaded module [lang-painless]
[2018-01-07T10:00:24,718][INFO ][o.e.p.PluginsService ] [cNWkQjt] loaded module [mapper-extras]
[2018-01-07T10:00:24,719][INFO ][o.e.p.PluginsService ] [cNWkQjt] loaded module [parent-join]
[2018-01-07T10:00:24,719][INFO ][o.e.p.PluginsService ] [cNWkQjt] loaded module [percolator]
[2018-01-07T10:00:24,719][INFO ][o.e.p.PluginsService ] [cNWkQjt] loaded module [reindex]
[2018-01-07T10:00:24,719][INFO ][o.e.p.PluginsService ] [cNWkQjt] loaded module [repository-url]
[2018-01-07T10:00:24,719][INFO ][o.e.p.PluginsService ] [cNWkQjt] loaded module [transport-netty4]
[2018-01-07T10:00:24,720][INFO ][o.e.p.PluginsService ] [cNWkQjt] loaded module [tribe]
[2018-01-07T10:00:24,720][INFO ][o.e.p.PluginsService ] [cNWkQjt] loaded plugin [analysis-ik]
[2018-01-07T10:00:27,866][INFO ][o.e.d.DiscoveryModule ] [cNWkQjt] using discovery type [zen]
[2018-01-07T10:00:28,794][INFO ][o.e.n.Node ] initialized
[2018-01-07T10:00:28,795][INFO ][o.e.n.Node ] [cNWkQjt] starting ...
[2018-01-07T10:00:29,047][INFO ][o.e.t.TransportService ] [cNWkQjt] publish_address {192.168.80.131:9300}, bound_addresses {192.168.80.131:9300}
[2018-01-07T10:00:29,093][INFO ][o.e.b.BootstrapChecks ] [cNWkQjt] bound or publishing to a non-loopback or non-link-local address, enforcing bootstrap checks
[2018-01-07T10:00:32,210][INFO ][o.e.c.s.MasterService ] [cNWkQjt] zen-disco-elected-as-master ([0] nodes joined), reason: new_master {cNWkQjt}{cNWkQjt9SzKFNtyx8IIu-A}{N6t0NiDmQp2vlrbx-FtcUQ}{192.168.80.131}{192.168.80.131:9300}
[2018-01-07T10:00:32,217][INFO ][o.e.c.s.ClusterApplierService] [cNWkQjt] new_master {cNWkQjt}{cNWkQjt9SzKFNtyx8IIu-A}{N6t0NiDmQp2vlrbx-FtcUQ}{192.168.80.131}{192.168.80.131:9300}, reason: apply cluster state (from master [master {cNWkQjt}{cNWkQjt9SzKFNtyx8IIu-A}{N6t0NiDmQp2vlrbx-FtcUQ}{192.168.80.131}{192.168.80.131:9300} committed version [1] source [zen-disco-elected-as-master ([0] nodes joined)]])
[2018-01-07T10:00:32,285][INFO ][o.e.h.n.Netty4HttpServerTransport] [cNWkQjt] publish_address {192.168.80.131:9200}, bound_addresses {192.168.80.131:9200}
[2018-01-07T10:00:32,286][INFO ][o.e.n.Node ] [cNWkQjt] started
[2018-01-07T10:00:32,326][INFO ][o.w.a.d.Monitor ] try load config from /opt/elasticsearch-6.1.1/config/analysis-ik/IKAnalyzer.cfg.xml
[2018-01-07T10:00:32,905][INFO ][o.w.a.d.Monitor ] [Dict Loading] custom/new_word.dic
[2018-01-07T10:00:33,279][INFO ][o.e.g.GatewayService ] [cNWkQjt] recovered [2] indices into cluster_state
[2018-01-07T10:00:34,092][INFO ][o.e.c.r.a.AllocationService] [cNWkQjt] Cluster health status changed from [RED] to [YELLOW] (reason: [shards started [[test][3]] ...]).从输出信息中可以看到
[Dict Loading] custom/new_word.dic说明自定义词典已经加载了。
（5）重启Kibana
重启Kibana后，从新执行下面命令
GET _analyze?pretty
{
"analyzer": "ik_smart",
"text":"王者荣耀"
}分词结果
{
"tokens": [ { "token": "王者荣耀", "start_offset": 0, "end_offset": 4, "type": "CN_WORD", "position": 0 } ] }
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