作者:season
Elastic search & kibana & 分詞器 安裝
版本控制
ES版本:7.2.0
分詞器版本:
kibana 版本:7.2.0
下載地址
ES 下載地址:https://www.elastic.co/cn/downloads/past-releases/elasticsearch-7-2-0
kibana 下載地址:https://www.elastic.co/cn/downloads/past-releases/kibana-7-2-0
hanlp 分詞器下載地址: https://github.com/KennFalcon/elasticsearch-analysis-hanlp
Elastic search安裝
- 0.添加es 用戶,並新建目錄
不能以root 方式運行elasticSearch
groupadd elasticsearch
useradd elasticsearch -g elasticsearch
chown -R elasticsearch:elasticsearch /home/elasticsearch
- 1.修改 配置文件 elasticsearch.yml
cluster.name: fastclaim
node.name: node-test
network.host: 172.31.3.50
http.port: 9200
cluster.initial_master_nodes: ["node-test"]
- 2.針對無法創建本地文件問題,用戶最大可創建文件數太小
切換到root用戶,編輯limits.conf配置文件
vi /etc/security/limits.conf
#末尾添加
* soft nofile 65536
* hard nofile 65536
* soft nproc 65536
* hard nproc 65536
- 3.針對無法創建本地線程問題,用戶最大可創建線程數太小
vi /etc/security/limits.d/90-nproc.conf
將
* soft nproc 1024
修改爲
* soft nproc 4096
- 4.針對最大虛擬內存太小
解決方法:切換到root用戶下,修改配置文件sysctl.conf
vi /etc/sysctl.conf
添加配置
vm.max_map_count=655360
執行命令
sysctl -p
- 5.重新啓動,啓動成功
如果要在後臺運行,使用./bin/elasticsearch -d啓動
curl 172.31.3.50:9200
{
"name" : "node-test",
"cluster_name" : "fastclaim",
"cluster_uuid" : "VtYF-EQIQNKHR1XWk7sE4g",
"version" : {
"number" : "7.2.0",
"build_flavor" : "default",
"build_type" : "tar",
"build_hash" : "508c38a",
"build_date" : "2019-06-20T15:54:18.811730Z",
"build_snapshot" : false,
"lucene_version" : "8.0.0",
"minimum_wire_compatibility_version" : "6.8.0",
"minimum_index_compatibility_version" : "6.0.0-beta1"
},
"tagline" : "You Know, for Search"
}
kibana 安裝
- 1.安裝及啓動
tar -xzvf 解壓縮後,進行安裝,
vim config/kibana.yml
# 修改如下四行
server.port: 5601
server.host: "172.31.3.50"
elasticsearch.hosts: ["http://172.31.3.50:9200"]
kibana.index: ".kibana"
# 後臺啓動
nohup ./bin/kibana >/dev/null &
- 2.開發工具地址
http://IP:5601/app/kibana#/dev_tools/console?_g=()
分詞器配置
參考鏈接:https://github.com/KennFalcon/elasticsearch-analysis-hanlp
- 1.下載安裝ES對應Plugin Release版本
安裝方式:
方式一
a. 下載對應的release安裝包,最新release包可從baidu盤下載(鏈接:https://pan.baidu.com/s/1mFPNJXgiTPzZeqEjH_zifw 密碼:i0o7)
b. 執行如下命令安裝,其中PATH爲插件包絕對路徑:
./bin/elasticsearch-plugin install file://${PATH}
方式二
a. 使用elasticsearch插件腳本安裝command如下:
./bin/elasticsearch-plugin install https://github.com/KennFalcon/elasticsearch-analysis-hanlp/releases/download/v7.2.0/elasticsearch-analysis-hanlp-7.2.0.zip
- 2.安裝數據包
release包中存放的爲HanLP源碼中默認的分詞數據,若要下載完整版數據包,請查看HanLP Release。
數據包目錄:ES_HOME/plugins/analysis-hanlp
注:因原版數據包自定義詞典部分文件名爲中文,這裏的hanlp.properties中已修改爲英文,請對應修改文件名
hanlp.properties 在
/home/elasticsearch/elasticsearch-7.2.0/config/analysis-hanlp 目錄中
因爲aws ec2 裏面網絡環境比較好,推薦直接在線安裝。
- 3.重啓Elasticsearch
注:上述說明中的ES_HOME爲自己的ES安裝路徑,需要絕對路徑
- 4.配置自定義詞典並熱更新
在本版本中,增加了詞典熱更新,修改步驟如下:
a. 在ES_HOME/plugins/analysis-hanlp/data/dictionary/custom目錄中新增自定義詞典
b. 修改hanlp.properties,修改CustomDictionaryPath,增加自定義詞典配置
c. 等待1分鐘後,詞典自動加載
具體腳本,以醫學常用詞典medical.txt 爲例
mv /tmp/medical.txt /home/elasticsearch/
cp /home/elasticsearch/medical.txt /home/elasticsearch/elasticsearch-7.2.0/plugins/analysis-hanlp/data/dictionary/custom/
#移動完成後修改權限
chown -R elasticsearch:elasticsearch /home/elasticsearch/
ll /home/elasticsearch/elasticsearch-7.2.0/plugins/analysis-hanlp/data/dictionary/custom/
#修改添加自定義目錄
vim /home/elasticsearch/elasticsearch-7.2.0/config/analysis-hanlp/hanlp.properties
# Custom dictinary path
CustomDictionaryPath=data/dictionary/custom/CustomDictionary.txt; ModernChineseSupplementaryWord.txt; ChinesePlaceName.txt ns; PersonalName.txt; OrganizationName.txt; ShanghaiPlaceName.txt ns;data/dictionary/person/nrf.txt nrf; medical.txt;
注:每個節點都需要做上述更改
- 5.提供的分詞方式說明
hanlp: hanlp默認分詞
hanlp_standard: 標準分詞
hanlp_index: 索引分詞
hanlp_nlp: NLP分詞
hanlp_n_short: N-最短路分詞
hanlp_dijkstra: 最短路分詞
hanlp_crf: CRF分詞(已有最新方式)
hanlp_speed: 極速詞典分詞
- 6.分詞樣例
GET /_analyze?pretty
{
"analyzer" : "hanlp_crf",
"text" : ["南京市長江大橋"]
}
{
"tokens" : [
{
"token" : "南京市",
"start_offset" : 0,
"end_offset" : 3,
"type" : "ns",
"position" : 0
},
{
"token" : "長江大橋",
"start_offset" : 0,
"end_offset" : 4,
"type" : "nz",
"position" : 1
}
]
}