IK分词器插件elasticsearch-analysis-ik 6.1.1

http://88250.b3log.org/full-text-search-elasticsearch#b3_solo_h3_0

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

（3）复制zip地址 
https://github.com/medcl/elasticsearch-analysis-ik/releases/download/v6.1.1/elasticsearch-analysis-ik-6.1.1.zip

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]$ 

• 1
• 2
• 3
• 4
• 5
• 6
• 7
• 8

（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]$ 

• 1
• 2
• 3
• 4
• 5
• 6
• 7
• 8
• 9
• 10

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]] ...]).

• 1
• 2
• 3
• 4
• 5
• 6
• 7
• 8
• 9
• 10
• 11
• 12
• 13
• 14
• 15
• 16
• 17
• 18
• 19
• 20
• 21
• 22
• 23
• 24
• 25
• 26
• 27
• 28
• 29
• 30
• 31
• 32
• 33

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"
}

• 1
• 2
• 3
• 4
• 5

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
    }
  ]
}

• 1
• 2
• 3
• 4
• 5
• 6
• 7
• 8
• 9
• 10
• 11
• 12
• 13
• 14
• 15
• 16
• 17
• 18

 
（2）ik_max_word

GET _analyze?pretty
{
  "analyzer": "ik_max_word",
  "text":"安徽省长江流域"
}

• 1
• 2
• 3
• 4
• 5

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
    }
  ]
}

• 1
• 2
• 3
• 4
• 5
• 6
• 7
• 8
• 9
• 10
• 11
• 12
• 13
• 14
• 15
• 16
• 17
• 18
• 19
• 20
• 21
• 22
• 23
• 24
• 25
• 26
• 27
• 28
• 29
• 30
• 31
• 32
• 33
• 34
• 35
• 36
• 37
• 38
• 39
• 40
• 41
• 42
• 43
• 44
• 45
• 46
• 47
• 48
• 49
• 50
• 51
• 52
• 53

（3）新词

GET _analyze?pretty
{
  "analyzer": "ik_smart",
  "text": "王者荣耀"
}

• 1
• 2
• 3
• 4
• 5

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
    }
  ]
}

• 1
• 2
• 3
• 4
• 5
• 6
• 7
• 8
• 9
• 10
• 11
• 12
• 13
• 14
• 15
• 16
• 17
• 18

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]$

• 1
• 2
• 3
• 4
• 5
• 6
• 7
• 8
• 9
• 10
• 11
• 12
• 13
• 14
• 15
• 16
• 17

（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]$ 

• 1
• 2
• 3
• 4
• 5
• 6
• 7
• 8
• 9

（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]$

• 1
• 2
• 3
• 4
• 5
• 6
• 7
• 8
• 9
• 10
• 11
• 12
• 13
• 14
• 15
• 16

（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]] ...]).

• 1
• 2
• 3
• 4
• 5
• 6
• 7
• 8
• 9
• 10
• 11
• 12
• 13
• 14
• 15
• 16
• 17
• 18
• 19
• 20
• 21
• 22
• 23
• 24
• 25
• 26
• 27
• 28
• 29
• 30
• 31
• 32
• 33
• 34
• 35

从输出信息中可以看到

[Dict Loading] custom/new_word.dic

• 1

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"
}

• 1
• 2
• 3
• 4
• 5

分词结果

{
  "tokens": [
    {
      "token": "王者荣耀",
      "start_offset": 0,
      "end_offset": 4,
      "type": "CN_WORD",
      "position": 0
    }
  ]
}

• 1
• 2
• 3
• 4
• 5
• 6
• 7
• 8
• 9
• 10
• 11

 

ElasticSearch 6.x 学习笔记：19.搜索高亮

19.1 高亮概述 参照官方文档 https://www.elastic.co/guide/en/elasticsearch/reference/6.1/search-request-highlighting.html Highlighters enable you to get highlighted snippets from one or more fields in your sea...

2018-01-19 10:41 阅读(7) 评论(0)

 

 

ElasticSearch 6.x 学习笔记：18.复合查询

【这一节先占个坑，后面再更新】 https://www.elastic.co/guide/en/elasticsearch/reference/6.1/compound-queries.html Compound queries wrap other compound or leaf queries, either to combine their results and scores, to...

2018-01-18 22:13 阅读(8) 评论(0)

 

 

ElasticSearch 6.x 学习笔记：17.词项查询

17.1 词项查询介绍 词项查询官网： https://www.elastic.co/guide/en/elasticsearch/reference/6.1/term-level-queries.html While the full text queries will analyze the query string before executing, the term-level qu...

2018-01-17 23:14 阅读(17) 评论(0)

 

 

ElasticSearch 6.x 学习笔记：16.全文检索

ElasticSearch 6.x 全文检索相关内容官方文档： https://www.elastic.co/guide/en/elasticsearch/reference/6.1/full-text-queries.html The high-level full text queries are usually used for running full text queries on...

2018-01-17 11:17 阅读(22) 评论(0)

 

 

ElasticSearch 6.x 学习笔记：15.检索入门

15.1 准备数据 [es@node1 ~]$ vi website.json [es@node1 ~]$ cat website.json { "index":{ "_index": "website", "_type": "blog", "_id": "1" }} { "title": "Ambari源码编译","author":"程裕强","postdate":"2016-12-2...

2018-01-17 10:51 阅读(25) 评论(0)

 

 

ElasticSearch 6.x 学习笔记：14.mapping参数

14.1 mapping参数概述 官方文档 https://www.elastic.co/guide/en/elasticsearch/reference/6.1/mapping-params.html ElasticSearch提供了丰富的映射参数对字段的映射进行参数设计，比如字段的分词器、字段权重、日期格式、检索模型等等。 14.2 analyzer https://www.el...

2018-01-14 22:33 阅读(40) 评论(0)

 

 

ElasticSearch 6.x 学习笔记：13.mapping元字段

13.1 元数据概述 mapping元字段官网文档 https://www.elastic.co/guide/en/elasticsearch/reference/current/mapping-fields.html#_document_source_meta_fields mapping元字段是mapping映射中描述文档本身的字段，大致可以分为文档属性元数据、文档元数据、索引元数据、路...

2018-01-13 22:25 阅读(44) 评论(0)

 

 

ElasticSearch 6.x 学习笔记：12.字段类型

12.1 字段类型概述 一级分类 二级分类 具体类型 核心类型 字符串类型 string,text,keyword 整数类型 integer,long,short,byte 浮点类型 double,float,half_float,scaled_floa...

2018-01-12 23:03 阅读(62) 评论(0)

 

 

ElasticSearch 6.x 学习笔记：11.映射Mapping

11.1 Mapping概述 前文已经把ElasticSearch的核心概念和关系数据库做了一个对比，索引（index）相当于数据库，类型(type)相当于数据表，映射(Mapping)相当于数据表的表结构。ElasticSearch中的映射（Mapping）用来定义一个文档，可以定义所包含的字段以及字段的类型、分词器及属性等等。 映射可以分为动态映射和静态映射。 （1）动态映射 我们知道...

2018-01-12 22:14 阅读(54) 评论(0)

 

 

ElasticSearch 6.x 学习笔记：10.批量操作

10.1 Bulk API如果文档数量非常庞大，商业运维中都是海量数据，一个一个操作文档显然不合实际。幸运的是ElasticSearch提供了文档的批量操作机制。我们已经知道mget允许一次性检索多个文档，ElasticSearch提供了Bulk API，可以执行批量索引、批量删除、批量更新等操作，也就是说Bulk API允许使用在单个步骤中进行多次 create 、 index 、 update...

2018-01-09 15:32 阅读(66) 评论(0)

 

 

ElasticSearch 6.x 学习笔记：9.版本控制

9.1 冲突处理如果两个线程同时修改一个文档，这时就会发生冲突。比如某件商品存货100件，用户1下单买走1件，剩余99件；与此同时用户2也下单买走1件，但是用户2不知道用户1已经下单，看到剩余商品仍然是99件。这样造成系统中显示商品总数比实际数量要多，这种情况在商业系统中肯定是不能容忍的。 在数据库领域中，有两种方法通常被用来确保并发更新时变更不会丢失： 1、悲观并发控制 这种方法被关系型数据...

2018-01-09 14:58 阅读(94) 评论(0)

 

 

ElasticSearch 6.x 学习笔记：8.路由机制

PUT blog/csdn/3?routing=chengyuqiang { "id":3, "title":"Java简介", "author":"chengyuqiang", "content":"Oracle Java" }{ "_index": "blog", "_type": "csdn", "_id": "3", "_version": 1, "res...

2018-01-09 11:43 阅读(56) 评论(0)

 

 

ElasticSearch 6.x 学习笔记：7.文档

7.1 新建文档 index/type/id （1）一般格式 PUT blog/csdn/1 { "id":1, "title":"Elasticsearch简介", "author":"chengyuqiang", "content":"Elasticsearch是一个基于Lucene的搜索引擎" } { "_index": "blog", "_typ...

2018-01-09 10:13 阅读(61) 评论(0)

 

 

ElasticSearch 6.x 学习笔记：6.索引

6.1 创建索引（1）简单方式PUT test{ "acknowledged": true, "shards_acknowledged": true, "index": "test" }（2）索引名不能包含大些字母PUT Test （3）重复创建PUT test（4）指定参数PUT blog { "settings": { "number_of_shards": 3,...

2018-01-09 09:32 阅读(80) 评论(0)

 

 

ElasticSearch 6.x 学习笔记：5.核心概念解读

5.1 索引索引(index)是ElasticSearch存放具体数据的地方，是一类具有相似特征的文档的集合。ElasticSearch中索引的概念具有不同意思，这里的索引相当于关系数据库中的一个数据库实例。在ElasticSearch中索引还可以作为动词，表示对数据进行索引操作。5.2 类型在一个ElasticSearch索引中，可以有多个类型。一个类型是索引的一个逻辑上的分类，通常具有一组相同字...

2018-01-08 22:22 阅读(89) 评论(0)

 

 

ElasticSearch 6.x 学习笔记：4.IK分词器插件

4.1 elasticsearch-analysis-ik 6.1.1 （1）源码 https://github.com/medcl/elasticsearch-analysis-ik （2）releases https://github.com/medcl/elasticsearch-analysis-ik/releases （3）复制zip地址 https://github...

2018-01-06 21:04 阅读(213) 评论(0)

 

 

ElasticSearch 6.x 学习笔记：3.Kibana插件

3.1 下载Kibana插件 https://www.elastic.co/downloads/kibana 注意，ElasticSearch版本是6.1.1，kibana的版本必须对应，所以，此处下载kibana-6.1.1-linux-x86_64.tar.gz [es@node1 ~]$ wget https://artifacts.elastic.co/downloads/kib...

2018-01-06 19:03 阅读(133) 评论(0)

 

 

ElasticSearch 6.x 学习笔记：2.head插件

2.1 Head插件简介 ElasticSearch-head是一个H5编写的ElasticSearch集群操作和管理工具，可以对集群进行傻瓜式操作。 显示集群的拓扑,并且能够执行索引和节点级别操作 搜索接口能够查询集群中原始json或表格格式的检索数据 能够快速访问并显示集群的状态 有一个输入窗口,允许任意调用RESTful API。这个接口包含几个选项,可以组合在一起以产生有趣的结果;...

2017-12-18 23:19 阅读(350) 评论(0)

 

 

ElasticSearch 6.x 学习笔记：1.下载安装与配置

1. 安装配置JDK 8 （1）下载并解压缩 [root@node1 ~]# tar -zxvf jdk-8u112-linux-x64.tar.gz -C /opt （2）编辑环境变量 vi /etc/profile.d/custom.sh [root@node1 ~]# vi /etc/profile.d/custom.sh [root@node1 ~]# cat /etc...

2017-12-18 22:21 阅读(215) 评论(0)

 

 

ElasticSearch 5.x Java API

1、添加数据（1）创建Index[root@node3 ~]# curl -X PUT 'node3:9200/accounts' {"acknowledged":true,"shards_acknowledged":true,"index":"accounts"} [root@node3 ~]# （2）插入数据[root@node3 conf]# curl -X PUT 'node3:9200/a...

2017-12-13 15:17 阅读(84) 评论(0)