Elasticsearch iK分词器

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Elasticsearch iK分词器

elasticsearch插件

elasticsearch插件默认安装在/usr/share/elasticsearch/plugins中

[root@elastic-01 ~]# ll /usr/share/elasticsearch/plugins/
total 0

安装插件时可以使用自带的命令进行安装

[root@elastic-01 ~]# /usr/share/elasticsearch/bin/elasticsearch-plugin  -h
A tool for managing installed elasticsearch plugins

Commands
--------
list - Lists installed elasticsearch plugins
install - Install a plugin
remove - removes a plugin from Elasticsearch

Non-option arguments:
command

Option             Description
------             -----------
-E <KeyValuePair>  Configure a setting
-h, --help         Show help
-s, --silent       Show minimal output
-v, --verbose      Show verbose output

iK分词器

iK分词器地址：https://github.com/medcl/elasticsearch-analysis-ik

[root@elastic-01 ~]# /usr/share/elasticsearch/bin/elasticsearch-plugin install https://github.com/medcl/elasticsearch-analysis-ik/releases/download/v7.7.0/elasticsearch-analysis-ik-7.7.0.zip
-> Installing https://github.com/medcl/elasticsearch-analysis-ik/releases/download/v7.7.0/elasticsearch-analysis-ik-7.7.0.zip
-> Downloading https://github.com/medcl/elasticsearch-analysis-ik/releases/download/v7.7.0/elasticsearch-analysis-ik-7.7.0.zip
[=================================================] 100%  
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
@     WARNING: plugin requires additional permissions     @
@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@@
* java.net.SocketPermission * connect,resolve
See http://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

[root@elastic-01 ~]# ll /usr/share/elasticsearch/plugins/
total 0
drwxr-xr-x 2 root root 229 Aug 02 14:35 analysis-ik
[root@elastic-01 ~]# ll /usr/share/elasticsearch/plugins/analysis-ik/
total 1428
-rw-r--r-- 1 root root 263965 Aug 02 14:35 commons-codec-1.9.jar
-rw-r--r-- 1 root root  61829 Aug 02 14:35 commons-logging-1.2.jar
-rw-r--r-- 1 root root  54599 Aug 02 14:35 elasticsearch-analysis-ik-7.7.0.jar
-rw-r--r-- 1 root root 736658 Aug 02 14:35 httpclient-4.5.2.jar
-rw-r--r-- 1 root root 326724 Aug 02 14:35 httpcore-4.4.4.jar
-rw-r--r-- 1 root root   1805 Aug 02 14:35 plugin-descriptor.properties
-rw-r--r-- 1 root root    125 Aug 02 14:35 plugin-security.policy


# 安装完插件后需要重启elasticsearch
[root@elastic-01 ~]# systemctl restart elasticsearch

测试iK分词器功能

以下操作均在kibana中dev tools中完成

Elasticsearch iK分词器

直接调用分词器测试分词后结果

分词器两种模式

  • ik_max_word: 会将文本做最细粒度的拆分，比如会将“中华人民共和国国歌”拆分为“中华人民共和国,中华人民,中华,华人,人民共和国,人民,人,民,共和国,共和,和,国国,国歌”，会穷尽各种可能的组合，适合 Term Query；
  • ik_smart: 会做最粗粒度的拆分，比如会将“中华人民共和国国歌”拆分为“中华人民共和国,国歌”，适合 Phrase 查询
POST _analyze
{
  "analyzer": "ik_smart",
  "text": ["xadocker个人技术博客站点，记录自己运维生涯"]
}

获取输出的结果

{
  "tokens" : [
    {
      "token" : "xadocker",
      "start_offset" : 0,
      "end_offset" : 8,
      "type" : "ENGLISH",
      "position" : 0
    },
    {
      "token" : "个人",
      "start_offset" : 8,
      "end_offset" : 10,
      "type" : "CN_WORD",
      "position" : 1
    },
    {
      "token" : "技术",
      "start_offset" : 10,
      "end_offset" : 12,
      "type" : "CN_WORD",
      "position" : 2
    },
    {
      "token" : "博客",
      "start_offset" : 12,
      "end_offset" : 14,
      "type" : "CN_WORD",
      "position" : 3
    },
    {
      "token" : "站点",
      "start_offset" : 14,
      "end_offset" : 16,
      "type" : "CN_WORD",
      "position" : 4
    },
    {
      "token" : "记录",
      "start_offset" : 17,
      "end_offset" : 19,
      "type" : "CN_WORD",
      "position" : 5
    },
    {
      "token" : "自己",
      "start_offset" : 19,
      "end_offset" : 21,
      "type" : "CN_WORD",
      "position" : 6
    },
    {
      "token" : "运",
      "start_offset" : 21,
      "end_offset" : 22,
      "type" : "CN_CHAR",
      "position" : 7
    },
    {
      "token" : "维",
      "start_offset" : 22,
      "end_offset" : 23,
      "type" : "CN_CHAR",
      "position" : 8
    },
    {
      "token" : "生涯",
      "start_offset" : 23,
      "end_offset" : 25,
      "type" : "CN_WORD",
      "position" : 9
    }
  ]
}

以上方式属即时调用，不会留存数据，下面则是在创建索引阶段设置mapping来对指定字段数据进行分词

创建索引

PUT testindex

创建mapping映射，在mapping中对字段content使用分词器

POST testindex/_mapping
{
        "properties": {
            "content": {
                "type": "text",
                "analyzer": "ik_max_word",
                "search_analyzer": "ik_smart"
            }
        }

}

创建模拟数据

POST testindex/_create/1 
{"content":"美国留给伊拉克的是个烂摊子吗"}

POST testindex/_create/2
{"content":"公安部：各地校车将享最高路权"}

POST testindex/_create/3
{"content":"中韩渔警冲突调查：韩警平均每天扣1艘中国渔船"}

POST testindex/_create/4
{"content":"中国驻洛杉矶领事馆遭亚裔男子枪击 嫌犯已自首"}

POST testindex/_create/5
{"content":"中国驻洛杉矶领事馆遭亚裔男子枪击，嫌犯已自首，即日起押回中国"}

highlight查询测试

POST testindex/_search 
{
    "query" : { "match" : { "content" : "中国" }},
    "highlight" : {
        "pre_tags" : ["<tag1>", "<tag2>"],
        "post_tags" : ["</tag1>", "</tag2>"],
        "fields" : {
            "content" : {}
        }
    }
}

查询结果输出

{
  "took" : 57,
  "timed_out" : false,
  "_shards" : {
    "total" : 1,
    "successful" : 1,
    "skipped" : 0,
    "failed" : 0
  },
  "hits" : {
    "total" : {
      "value" : 3,
      "relation" : "eq"
    },
    "max_score" : 0.65094703,
    "hits" : [
      {
        "_index" : "testindex",
        "_type" : "_doc",
        "_id" : "5",
        "_score" : 0.65094703,
        "_source" : {
          "content" : "中国驻洛杉矶领事馆遭亚裔男子枪击，嫌犯已自首，即日起押回中国"
        },
        "highlight" : {
          "content" : [
            "<tag1>中国</tag1>驻洛杉矶领事馆遭亚裔男子枪击，嫌犯已自首，即日起押回<tag1>中国</tag1>"
          ]
        }
      },
      {
        "_index" : "testindex",
        "_type" : "_doc",
        "_id" : "3",
        "_score" : 0.52930105,
        "_source" : {
          "content" : "中韩渔警冲突调查：韩警平均每天扣1艘中国渔船"
        },
        "highlight" : {
          "content" : [
            "中韩渔警冲突调查：韩警平均每天扣1艘<tag1>中国</tag1>渔船"
          ]
        }
      },
      {
        "_index" : "testindex",
        "_type" : "_doc",
        "_id" : "4",
        "_score" : 0.52930105,
        "_source" : {
          "content" : "中国驻洛杉矶领事馆遭亚裔男子枪击 嫌犯已自首"
        },
        "highlight" : {
          "content" : [
            "<tag1>中国</tag1>驻洛杉矶领事馆遭亚裔男子枪击 嫌犯已自首"
          ]
        }
      }
    ]
  }
}

自定义分词字典

如果想要按照自己分词规则去分词，可以创建自己的字典，我们查看下ik分词器的配置字典

# 注意安装完iK分词器后，它的配置文件会在/etc/elasticsearch/analysis-ik/目录中，而不是
# 在/usr/share/elasticsearch/plugins/analysis-ik/中，起初博主也搞错
# 去/usr/share/elasticsearch/plugins/analysis-ik/创建config目录并配置，一直不生效
# 知道看到以下日志后才知道
[root@elastic-01 config]# cat /var/log/elasticsearch/elasticsearch.log | grep IKAnalyzer.cfg.xml
[2020-08-02T14:48:05,104][INFO ][o.w.a.d.Monitor          ] [node-1] try load config from /etc/elasticsearch/analysis-ik/IKAnalyzer.cfg.xml
[2020-08-02T16:04:16,422][INFO ][o.w.a.d.Monitor          ] [node-1] try load config from /etc/elasticsearch/analysis-ik/IKAnalyzer.cfg.xml
[2020-08-02T16:15:36,370][INFO ][o.w.a.d.Monitor          ] [node-1] try load config from /etc/elasticsearch/analysis-ik/IKAnalyzer.cfg.xml

# ik分词器配置目录
[root@elastic-01 elasticsearch]# pwd
/etc/elasticsearch
[root@elastic-01 elasticsearch]# ll analysis-ik/
total 8264
-rw-rw---- 1 elasticsearch elasticsearch 5225922 Aug 02 14:35 extra_main.dic
-rw-rw---- 1 elasticsearch elasticsearch   63188 Aug 02 14:35 extra_single_word.dic
-rw-rw---- 1 elasticsearch elasticsearch   63188 Aug 02 14:35 extra_single_word_full.dic
-rw-rw---- 1 elasticsearch elasticsearch   10855 Aug 02 14:35 extra_single_word_low_freq.dic
-rw-rw---- 1 elasticsearch elasticsearch     156 Aug 02 14:35 extra_stopword.dic
-rw-rw---- 1 elasticsearch elasticsearch     634 Aug 02 16:23 IKAnalyzer.cfg.xml
-rw-rw---- 1 elasticsearch elasticsearch 3058510 Aug 02 14:35 main.dic

-rw-rw---- 1 elasticsearch elasticsearch     123 Aug 02 14:35 preposition.dic
-rw-rw---- 1 elasticsearch elasticsearch    1824 Aug 02 14:35 quantifier.dic
-rw-rw---- 1 elasticsearch elasticsearch     164 Aug 02 14:35 stopword.dic
-rw-rw---- 1 elasticsearch elasticsearch     192 Aug 02 14:35 suffix.dic
-rw-rw---- 1 elasticsearch elasticsearch     752 Aug 02 14:35 surname.dic

# 以dic结尾的都是字典，文件中每个词占一行
[root@elastic-01 elasticsearch]# wc -l analysis-ik/*.dic
 398715 analysis-ik/extra_main.dic
  12637 analysis-ik/extra_single_word.dic
  12637 analysis-ik/extra_single_word_full.dic
   2713 analysis-ik/extra_single_word_low_freq.dic
     30 analysis-ik/extra_stopword.dic
 275908 analysis-ik/main.dic
      3 analysis-ik/mydic.dic
     24 analysis-ik/preposition.dic
    315 analysis-ik/quantifier.dic
     32 analysis-ik/stopword.dic
     36 analysis-ik/suffix.dic
    130 analysis-ik/surname.dic
 703180 total

配置自己的分词字典

创建一个测试字典

[root@elastic-01 elasticsearch]# cat analysis-ik/mydic.dic
川普
川建国
建国同志

配置iK分词器配置加载自建字典

[root@elastic-01 elasticsearch]# cat /etc/elasticsearch/analysis-ik/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">mydic.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>

重启服务后测试

测试语句

POST _analyze
{
  "analyzer": "ik_smart",
  "text": ["trump，一个远在异国的建国同志川普，国内亲切称其为川建国"]
}

以下是未使用自建分词器时的结果

{
  "tokens" : [
    {
      "token" : "trump",
      "start_offset" : 0,
      "end_offset" : 5,
      "type" : "ENGLISH",
      "position" : 0
    },
    {
      "token" : "一个",
      "start_offset" : 6,
      "end_offset" : 8,
      "type" : "CN_WORD",
      "position" : 1
    },
    {
      "token" : "远在",
      "start_offset" : 8,
      "end_offset" : 10,
      "type" : "CN_WORD",
      "position" : 2
    },
    {
      "token" : "异国",
      "start_offset" : 10,
      "end_offset" : 12,
      "type" : "CN_WORD",
      "position" : 3
    },
    {
      "token" : "的",
      "start_offset" : 12,
      "end_offset" : 13,
      "type" : "CN_CHAR",
      "position" : 4
    },
    {
      "token" : "建国",
      "start_offset" : 13,
      "end_offset" : 15,
      "type" : "CN_WORD",
      "position" : 5
    },
    {
      "token" : "同志",
      "start_offset" : 15,
      "end_offset" : 17,
      "type" : "CN_WORD",
      "position" : 6
    },
    {
      "token" : "川",
      "start_offset" : 17,
      "end_offset" : 18,
      "type" : "CN_CHAR",
      "position" : 7
    },
    {
      "token" : "普",
      "start_offset" : 18,
      "end_offset" : 19,
      "type" : "CN_CHAR",
      "position" : 8
    },
    {
      "token" : "国内",
      "start_offset" : 20,
      "end_offset" : 22,
      "type" : "CN_WORD",
      "position" : 9
    },
    {
      "token" : "亲切",
      "start_offset" : 22,
      "end_offset" : 24,
      "type" : "CN_WORD",
      "position" : 10
    },
    {
      "token" : "称",
      "start_offset" : 24,
      "end_offset" : 25,
      "type" : "CN_CHAR",
      "position" : 11
    },
    {
      "token" : "其为",
      "start_offset" : 25,
      "end_offset" : 27,
      "type" : "CN_WORD",
      "position" : 12
    },
    {
      "token" : "川",
      "start_offset" : 27,
      "end_offset" : 28,
      "type" : "CN_CHAR",
      "position" : 13
    },
    {
      "token" : "建国",
      "start_offset" : 28,
      "end_offset" : 30,
      "type" : "CN_WORD",
      "position" : 14
    }
  ]
}

使用自建分词字典后的结果

{
  "tokens" : [
    {
      "token" : "trump",
      "start_offset" : 0,
      "end_offset" : 5,
      "type" : "ENGLISH",
      "position" : 0
    },
    {
      "token" : "一个",
      "start_offset" : 6,
      "end_offset" : 8,
      "type" : "CN_WORD",
      "position" : 1
    },
    {
      "token" : "远在",
      "start_offset" : 8,
      "end_offset" : 10,
      "type" : "CN_WORD",
      "position" : 2
    },
    {
      "token" : "异国",
      "start_offset" : 10,
      "end_offset" : 12,
      "type" : "CN_WORD",
      "position" : 3
    },
    {
      "token" : "的",
      "start_offset" : 12,
      "end_offset" : 13,
      "type" : "CN_CHAR",
      "position" : 4
    },
    {
      "token" : "建国同志",
      "start_offset" : 13,
      "end_offset" : 17,
      "type" : "CN_WORD",
      "position" : 5
    },
    {
      "token" : "川普",
      "start_offset" : 17,
      "end_offset" : 19,
      "type" : "CN_WORD",
      "position" : 6
    },
    {
      "token" : "国内",
      "start_offset" : 20,
      "end_offset" : 22,
      "type" : "CN_WORD",
      "position" : 7
    },
    {
      "token" : "亲切",
      "start_offset" : 22,
      "end_offset" : 24,
      "type" : "CN_WORD",
      "position" : 8
    },
    {
      "token" : "称",
      "start_offset" : 24,
      "end_offset" : 25,
      "type" : "CN_CHAR",
      "position" : 9
    },
    {
      "token" : "其为",
      "start_offset" : 25,
      "end_offset" : 27,
      "type" : "CN_WORD",
      "position" : 10
    },
    {
      "token" : "川建国",
      "start_offset" : 27,
      "end_offset" : 30,
      "type" : "CN_WORD",
      "position" : 11
    }
  ]
}

iK分词器动态字典

之前介绍的静态字典，每次更新字典就需要重新启动es服务，不适用。此处讲下动态更新字典：

通过上文在 IK 配置文件中提到的如下配置

 	<!--用户可以在这里配置远程扩展字典 -->
	<entry key="remote_ext_dict">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">location</entry>

其中 location 是指一个 url，比如 http://yoursite.com/getCustomDict，该请求只需满足以下两点即可完成分词热更新。

  1. 该 http 请求需要返回两个头部(header)，一个是 Last-Modified，一个是 ETag，这两者都是字符串类型，只要有一个发生变化，该插件就会去抓取新的分词进而更新词库。
  2. 该 http 请求返回的内容格式是一行一个分词，换行符用 \n 即可。

满足上面两点要求就可以实现热更新分词了，不需要重启 ES 实例。

可以将需自动更新的热词放在一个 UTF-8 编码的 .txt 文件里，放在 nginx 或其他简易 http server 下，当 .txt 文件修改时，http server 会在客户端请求该文件时自动返回相应的 Last-Modified 和 ETag。可以另外做一个工具来从业务系统提取相关词汇，并更新这个 .txt 文件。

以上来自官方解释，此处我们创建一个nginx静态站点来提供字典即可

yum install nginx -y
cat >/etc/nginx/conf.d/ik.xadocker.cn.conf<<-'EOF'
    server {
        listen       80;
        listen       [::]:80;
        server_name  ik.xadocker.cn;
        location / {
            root /usr/share/nginx/www;
            index index.html;
        }
    }
EOF

将自定义字典放入/usr/share/nginx/www即可

[root@elastic-01 nginx]# cp /etc/elasticsearch/analysis-ik/mydic.dic /usr/share/nginx/www
[root@elastic-01 nginx]# nginx -t
[root@elastic-01 nginx]# systemctl restart nginx 
[root@elastic-01 nginx]# curl ik.xadocker.cn/mydic.dic
川普
川建国
建国同志

调整ik分词器配置并重启配置

[root@elastic-01 nginx]# cat >/etc/elasticsearch/analysis-ik/IKAnalyzer.cfg.xml<<-'EOF'
<?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"></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">http://ik.xadocker.cn/mydic.dic</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>
EOF

[root@elastic-01 nginx]# systemctl restart elasticsearch.service

测试下效果

POST _analyze
{
  "analyzer": "ik_smart",
  "text": ["trump，一个远在异国的建国同志川普，国内亲切称其为川建国，可真是奥里给"]
}

分词结果为

{
  "tokens" : [
    {
      "token" : "trump",
      "start_offset" : 0,
      "end_offset" : 5,
      "type" : "ENGLISH",
      "position" : 0
    },
    {
      "token" : "一个",
      "start_offset" : 6,
      "end_offset" : 8,
      "type" : "CN_WORD",
      "position" : 1
    },
    {
      "token" : "远在",
      "start_offset" : 8,
      "end_offset" : 10,
      "type" : "CN_WORD",
      "position" : 2
    },
    {
      "token" : "异国",
      "start_offset" : 10,
      "end_offset" : 12,
      "type" : "CN_WORD",
      "position" : 3
    },
    {
      "token" : "的",
      "start_offset" : 12,
      "end_offset" : 13,
      "type" : "CN_CHAR",
      "position" : 4
    },
    {
      "token" : "建国同志",
      "start_offset" : 13,
      "end_offset" : 17,
      "type" : "CN_WORD",
      "position" : 5
    },
    {
      "token" : "川普",
      "start_offset" : 17,
      "end_offset" : 19,
      "type" : "CN_WORD",
      "position" : 6
    },
    {
      "token" : "国内",
      "start_offset" : 20,
      "end_offset" : 22,
      "type" : "CN_WORD",
      "position" : 7
    },
    {
      "token" : "亲切",
      "start_offset" : 22,
      "end_offset" : 24,
      "type" : "CN_WORD",
      "position" : 8
    },
    {
      "token" : "称",
      "start_offset" : 24,
      "end_offset" : 25,
      "type" : "CN_CHAR",
      "position" : 9
    },
    {
      "token" : "其为",
      "start_offset" : 25,
      "end_offset" : 27,
      "type" : "CN_WORD",
      "position" : 10
    },
    {
      "token" : "川建国",
      "start_offset" : 27,
      "end_offset" : 30,
      "type" : "CN_WORD",
      "position" : 11
    },
    {
      "token" : "可真是",
      "start_offset" : 31,
      "end_offset" : 34,
      "type" : "CN_WORD",
      "position" : 12
    },
    {
      "token" : "奥",
      "start_offset" : 34,
      "end_offset" : 35,
      "type" : "CN_CHAR",
      "position" : 13
    },
    {
      "token" : "里",
      "start_offset" : 35,
      "end_offset" : 36,
      "type" : "CN_CHAR",
      "position" : 14
    },
    {
      "token" : "给",
      "start_offset" : 36,
      "end_offset" : 37,
      "type" : "CN_CHAR",
      "position" : 15
    }
  ]
}

我们对字典新增一个词 奥里给

[root@elastic-01 nginx]# cat /usr/share/nginx/www/mydic.dic
川普
川建国
建国同志
奥里给

此时分词结果为

{
  "tokens" : [
    {
      "token" : "trump",
      "start_offset" : 0,
      "end_offset" : 5,
      "type" : "ENGLISH",
      "position" : 0
    },
    {
      "token" : "一个",
      "start_offset" : 6,
      "end_offset" : 8,
      "type" : "CN_WORD",
      "position" : 1
    },
    {
      "token" : "远在",
      "start_offset" : 8,
      "end_offset" : 10,
      "type" : "CN_WORD",
      "position" : 2
    },
    {
      "token" : "异国",
      "start_offset" : 10,
      "end_offset" : 12,
      "type" : "CN_WORD",
      "position" : 3
    },
    {
      "token" : "的",
      "start_offset" : 12,
      "end_offset" : 13,
      "type" : "CN_CHAR",
      "position" : 4
    },
    {
      "token" : "建国同志",
      "start_offset" : 13,
      "end_offset" : 17,
      "type" : "CN_WORD",
      "position" : 5
    },
    {
      "token" : "川普",
      "start_offset" : 17,
      "end_offset" : 19,
      "type" : "CN_WORD",
      "position" : 6
    },
    {
      "token" : "国内",
      "start_offset" : 20,
      "end_offset" : 22,
      "type" : "CN_WORD",
      "position" : 7
    },
    {
      "token" : "亲切",
      "start_offset" : 22,
      "end_offset" : 24,
      "type" : "CN_WORD",
      "position" : 8
    },
    {
      "token" : "称",
      "start_offset" : 24,
      "end_offset" : 25,
      "type" : "CN_CHAR",
      "position" : 9
    },
    {
      "token" : "其为",
      "start_offset" : 25,
      "end_offset" : 27,
      "type" : "CN_WORD",
      "position" : 10
    },
    {
      "token" : "川建国",
      "start_offset" : 27,
      "end_offset" : 30,
      "type" : "CN_WORD",
      "position" : 11
    },
    {
      "token" : "可真是",
      "start_offset" : 31,
      "end_offset" : 34,
      "type" : "CN_WORD",
      "position" : 12
    },
    {
      "token" : "奥里给",
      "start_offset" : 34,
      "end_offset" : 37,
      "type" : "CN_WORD",
      "position" : 13
    }
  ]
}

热更新字典可以在日志体现

[2022-12-12T17:05:00,169][INFO ][o.w.a.d.Monitor          ] [node-1] start to reload ik dict.
[2020-08-02T17:05:00,170][INFO ][o.w.a.d.Monitor          ] [node-1] try load config from /etc/elasticsearch/analysis-ik/IKAnalyzer.cfg.xml
[2020-08-02T17:05:00,310][INFO ][o.w.a.d.Monitor          ] [node-1] [Dict Loading] http://ik.xadocker.cn/mydic.dic
[2020-08-02T17:05:00,314][INFO ][o.w.a.d.Monitor          ] [node-1] 川普
[2020-08-02T17:05:00,314][INFO ][o.w.a.d.Monitor          ] [node-1] 川建国
[2020-08-02T17:05:00,314][INFO ][o.w.a.d.Monitor          ] [node-1] 建国同志
[2020-08-02T17:05:00,315][INFO ][o.w.a.d.Monitor          ] [node-1] reload ik dict finished.
[2020-08-02T17:18:00,168][INFO ][o.w.a.d.Monitor          ] [node-1] start to reload ik dict.
[2020-08-02T17:18:00,168][INFO ][o.w.a.d.Monitor          ] [node-1] try load config from /etc/elasticsearch/analysis-ik/IKAnalyzer.cfg.xml
[2020-08-02T17:18:00,298][INFO ][o.w.a.d.Monitor          ] [node-1] [Dict Loading] http://ik.xadocker.cn/mydic.dic
[2020-08-02T17:18:00,302][INFO ][o.w.a.d.Monitor          ] [node-1] 川普
[2020-08-02T17:18:00,302][INFO ][o.w.a.d.Monitor          ] [node-1] 川建国
[2020-08-02T17:18:00,302][INFO ][o.w.a.d.Monitor          ] [node-1] 建国同志
[2020-08-02T17:18:00,303][INFO ][o.w.a.d.Monitor          ] [node-1] 奥里给
[2020-08-02T17:18:00,303][INFO ][o.w.a.d.Monitor          ] [node-1] reload ik dict finished.

正文完
elasticsearch
发表至： elasticsearch 运维
2020-08-02
 
xadocker
版权声明：本站原创文章，由 xadocker 2020-08-02发表，共计15086字。
转载说明：除特殊说明外本站文章皆由CC-4.0协议发布，转载请注明出处。
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