Elasticsearch 8.3.2 简单使用

Elasticsearch 8.3.2 使用

页面查询

1. 页面所有命令：https://lsyk03:9200/_cat/

   =^.^=
   /_cat/allocation
   /_cat/shards  --查看索引的分片
   /_cat/shards/{index}
   /_cat/master
   /_cat/nodes   -- 查看所有节点
   /_cat/tasks
   /_cat/indices    -- 查看所有索引
   /_cat/indices/{index}
   /_cat/segments
   /_cat/segments/{index}
   /_cat/count    -- 查看所有索引的记录总数
   /_cat/count/{index} -- 插卡具体索引的记录数
   /_cat/recovery
   /_cat/recovery/{index}
   /_cat/health   -- 健康状况
   /_cat/pending_tasks
   /_cat/aliases
   /_cat/aliases/{alias}
   /_cat/thread_pool
   /_cat/thread_pool/{thread_pools}
   /_cat/plugins
   /_cat/fielddata
   /_cat/fielddata/{fields}
   /_cat/nodeattrs
   /_cat/repositories
   /_cat/snapshots/{repository}
   /_cat/templates
   /_cat/component_templates/_cat/transforms
   /_cat/transforms/{transform_id}
   /_cat/ml/anomaly_detectors
   /_cat/ml/anomaly_detectors/{job_id}
   /_cat/ml/trained_models
   /_cat/ml/trained_models/{model_id}
   /_cat/ml/datafeeds
   /_cat/ml/datafeeds/{datafeed_id}
   /_cat/ml/data_frame/analytics
   /_cat/ml/data_frame/analytics/{id}
   

   可以在命令后面增加 /?v 查看

2. sql jdbc

   https://www.elastic.co/guide/en/elasticsearch/reference/current/sql-jdbc.html

   jdbc:es://http://lsyk01:9200/
   

3. elasticsearch-sql-cli

elasticsearch-sql-cli http://elastic:fafafa@lsyk03:9200

但是不支持join、update、delete、insert等操作。

show tables;
desc ls;
select count(1) from ls;
select id,title,content from ls;
select title,count(distinct title),count(title),max(title) from ls where (title='es简介' or title='大数据简介') and content not in('es好用好用真好用','你知道什么是大数据吗，就是大数据','这就是个工具书') group by title limit 3;

4. 创建一个索引
   创建一个名为 customer 的索引。pretty要求返回一个漂亮的json 结果

   curl -XPUT -u elastic:fafafa lsyk01:9200/ls
   curl -u elastic:fafafa -XPUT http://lsyk01:9200/yk02
   

5. 插入数据

   curl -H 'Content-Type:application/json' -u elastic:fafafa -XPUT -d '{"id":1,"title":"es简介","content":"es好用好用真好用"}' http://lsyk01:9200/ls/_doc/1
   curl -H 'Content-Type:application/json' -u elastic:fafafa -XPUT -d '{"id":1,"title":"java编程思想","content":"这就是个工具书"}' http://lsyk01:9200/ls/_doc/2
   curl -H 'Content-Type:application/json' -u elastic:fafafa -XPUT -d '{"id":1,"title":"大数据简介","content":"你知道什么是大数据吗，就是大数据"}' http://lsyk01:9200/ls/_doc/3
   curl -H 'Content-Type:application/json' -u elastic:fafafa -XPUT -d '{"id":1,"title":"es简介","content":"es好用好用真好用1"}' http://lsyk01:9200/ls/_doc/4
   
   

未完待续。。。