elasticsearch 初学笔记
目录
如果觉得有用，希望能在github上给个小星星
github 链接
安装
curl -O https://artifacts.elastic.co/downloads/elasticsearch/elasticsearch-8.6.0-darwin-x86_64.tar.gz
curl https://artifacts.elastic.co/downloads/elasticsearch/elasticsearch-8.6.0-darwin-x86_64.tar.gz.sha512 | shasum -a 512 -c -
tar -xzf elasticsearch-8.6.0-darwin-x86_64.tar.gz
cd elasticsearch-8.6.0/
初次启动，会有如下提示，密码等信息
✅ Elasticsearch security features have been automatically configured!
✅ Authentication is enabled and cluster connections are encrypted.
ℹ️ Password for the elastic user (reset with `bin/elasticsearch-reset-password -u elastic`):
BYH5mquiw3poy1*ywrU=
ℹ️ HTTP CA certificate SHA-256 fingerprint:
82080351feb2e4397db2cbfad71730aee5a4605d8583fcf577e5c1c65755caaf
ℹ️ Configure Kibana to use this cluster:
• Run Kibana and click the configuration link in the terminal when Kibana starts.
• Copy the following enrollment token and paste it into Kibana in your browser (valid for the next 30 minutes):
eyJ2ZXIiOiI4LjYuMCIsImFkciI6WyIxOTIuMTY4LjEuMTUyOjkyMDAiXSwiZmdyIjoiODIwODAzNTFmZWIyZTQzOTdkYjJjYmZhZDcxNzMwYWVlNWE0NjA1ZDg1ODNmY2Y1NzdlNWMxYzY1NzU1Y2FhZiIsImtleSI6Ilp6X0F3NFVCU0p0V3dJUkpWZWF4OnEwaU1xc25LU0VxTlFZTldLbzNsTHcifQ==
ℹ️ Configure other nodes to join this cluster:
• On this node:
⁃ Create an enrollment token with `bin/elasticsearch-create-enrollment-token -s node`.
⁃ Uncomment the transport.host setting at the end of config/elasticsearch.yml.
⁃ Restart Elasticsearch.
• On other nodes:
⁃ Start Elasticsearch with `bin/elasticsearch --enrollment-token <token>`, using the enrollment token that you generated.
使用
create index
(base) ➜ elasticsearch-8.6.0 curl -X PUT --cacert $ES_HOME/config/certs/http_ca.crt -u elastic 'https://localhost:9200/split_file?pretty'
Enter host password for user 'elastic':
{
"acknowledged" : true,
"shards_acknowledged" : true,
"index" : "split_file"
}
list index
(base) ➜ elasticsearch-8.6.0 curl -X GET --cacert $ES_HOME/config/certs/http_ca.crt -u elastic "https://localhost:9200/_cat/indices?v=true&s=index&pretty"
Enter host password for user 'elastic':
health status index uuid pri rep docs.count docs.deleted store.size pri.store.size
yellow open split_file Kx9lpPyMSV26yAGXMolXyg 1 1 0 0 225b 225b
create a new document
(base) ➜ elasticsearch-8.6.0 curl -X POST --cacert $ES_HOME/config/certs/http_ca.crt -u elastic "https://localhost:9200/split_file/_doc/?pretty" -H 'Content-Type: application/json' -d'
{
"uuid": "6d20a8ba-9706-11ed-8f3b-acde48001122",
"filename": "Text_343.jpg",
"path": "data/split_file/og_file/huaxintest/ce91c1fc9c5ca0daf6eeca65cfef6861_758ca3e7ec50b24aeb1531df7f278e6c.jpg",
"time_stamp": "2022-05-19 14:15:25.255753",
"marked_status": 1,
"quality_status": 1,
"app_id": 2,
"user_id": 1,
"data_type": 1,
"dataset_id": 5,
"marked_file_path": "data/split_file/marked_file/huaxintest/ce91c1fc9c5ca0daf6eeca65cfef6861_758ca3e7ec50b24aeb1531df7f278e6c.json",
"predict_value": "456test"
}
'
Enter host password for user 'elastic':
{
"_index" : "split_file",
"_id" : "JOjuw4UBPd4SWO866Je4",
"_version" : 1,
"result" : "created",
"_shards" : {
"total" : 2,
"successful" : 1,
"failed" : 0
},
"_seq_no" : 0,
"_primary_term" : 1
}
get document
get document by id
(base) ➜ elasticsearch-8.6.0 curl -X GET --cacert $ES_HOME/config/certs/http_ca.crt -u "elastic:BYH5mquiw3poy1*ywrU=" "https://localhost:9200/split_file/_doc/JOjuw4UBPd4SWO866Je4?pretty"
{
"_index" : "split_file",
"_id" : "JOjuw4UBPd4SWO866Je4",
"_version" : 1,
"_seq_no" : 0,
"_primary_term" : 1,
"found" : true,
"_source" : {
"uuid" : "6d20a8ba-9706-11ed-8f3b-acde48001122",
"filename" : "Text_343.jpg",
"path" : "data/split_file/og_file/huaxintest/ce91c1fc9c5ca0daf6eeca65cfef6861_758ca3e7ec50b24aeb1531df7f278e6c.jpg",
"time_stamp" : "2022-05-19 14:15:25.255753",
"marked_status" : 1,
"quality_status" : 1,
"app_id" : 2,
"user_id" : 1,
"data_type" : 1,
"dataset_id" : 5,
"marked_file_path" : "data/split_file/marked_file/huaxintest/ce91c1fc9c5ca0daf6eeca65cfef6861_758ca3e7ec50b24aeb1531df7f278e6c.json",
"predict_value" : "456test"
}
}
list all documents of index
(base) ➜ elasticsearch-8.6.0 curl -X GET --cacert $ES_HOME/config/certs/http_ca.crt -u "elastic:BYH5mquiw3poy1*ywrU=" "https://localhost:9200/split_file/_search"
{"took":93,"timed_out":false,"_shards":{"total":1,"successful":1,"skipped":0,"failed":0},"hits":{"total":{"value":1,"relation":"eq"},"max_score":1.0,"hits":[{"_index":"split_file","_id":"JOjuw4UBPd4SWO866Je4","_score":1.0,"_source":
{
"uuid": "6d20a8ba-9706-11ed-8f3b-acde48001122",
"filename": "Text_343.jpg",
"path": "data/split_file/og_file/huaxintest/ce91c1fc9c5ca0daf6eeca65cfef6861_758ca3e7ec50b24aeb1531df7f278e6c.jpg",
"time_stamp": "2022-05-19 14:15:25.255753",
"marked_status": 1,
"quality_status": 1,
"app_id": 2,
"user_id": 1,
"data_type": 1,
"dataset_id": 5,
"marked_file_path": "data/split_file/marked_file/huaxintest/ce91c1fc9c5ca0daf6eeca65cfef6861_758ca3e7ec50b24aeb1531df7f278e6c.json",
"predict_value": "456test"
}
}]}}%
模糊查询
(base) ➜ elasticsearch-8.6.0 curl -X GET --cacert $ES_HOME/config/certs/http_ca.crt -u "elastic:BYH5mquiw3poy1*ywrU=" "https://localhost:9200/split_file/_search?pretty" -H 'Content-Type: application/json' -d'
{
"query": {
"wildcard":{
"predict_value":{
"value": "*6t*"
}
}
}
}
'
{
"took" : 43,
"timed_out" : false,
"_shards" : {
"total" : 1,
"successful" : 1,
"skipped" : 0,
"failed" : 0
},
"hits" : {
"total" : {
"value" : 1,
"relation" : "eq"
},
"max_score" : 1.0,
"hits" : [
{
"_index" : "split_file",
"_id" : "JOjuw4UBPd4SWO866Je4",
"_score" : 1.0,
"_source" : {
"uuid" : "6d20a8ba-9706-11ed-8f3b-acde48001122",
"filename" : "Text_343.jpg",
"path" : "data/split_file/og_file/huaxintest/ce91c1fc9c5ca0daf6eeca65cfef6861_758ca3e7ec50b24aeb1531df7f278e6c.jpg",
"time_stamp" : "2022-05-19 14:15:25.255753",
"marked_status" : 1,
"quality_status" : 1,
"app_id" : 2,
"user_id" : 1,
"data_type" : 1,
"dataset_id" : 5,
"marked_file_path" : "data/split_file/marked_file/huaxintest/ce91c1fc9c5ca0daf6eeca65cfef6861_758ca3e7ec50b24aeb1531df7f278e6c.json",
"predict_value" : "456test"
}
}
]
}
}
正则查询
es的正则查询和平时我们使用的正则稍有区别，需要根据官方文档说明来写正则。比如，我们正则匹配一个包含数字和英文的：
(base) ➜ elasticsearch-8.6.0 curl -X GET --cacert $ES_HOME/config/certs/http_ca.crt -u "elastic:BYH5mquiw3poy1*ywrU=" "https://localhost:9200/split_file/_search?pretty" -H 'Content-Type: application/json' -d'
{
"query": {
"regexp": {
"predict_value": "<0-1000000000>[a-z]{0,4}"
}
}
}
'
{
"took" : 24,
"timed_out" : false,
"_shards" : {
"total" : 1,
"successful" : 1,
"skipped" : 0,
"failed" : 0
},
"hits" : {
"total" : {
"value" : 1,
"relation" : "eq"
},
"max_score" : 1.0,
"hits" : [
{
"_index" : "split_file",
"_id" : "JOjuw4UBPd4SWO866Je4",
"_score" : 1.0,
"_source" : {
"uuid" : "6d20a8ba-9706-11ed-8f3b-acde48001122",
"filename" : "Text_343.jpg",
"path" : "data/split_file/og_file/huaxintest/ce91c1fc9c5ca0daf6eeca65cfef6861_758ca3e7ec50b24aeb1531df7f278e6c.jpg",
"time_stamp" : "2022-05-19 14:15:25.255753",
"marked_status" : 1,
"quality_status" : 1,
"app_id" : 2,
"user_id" : 1,
"data_type" : 1,
"dataset_id" : 5,
"marked_file_path" : "data/split_file/marked_file/huaxintest/ce91c1fc9c5ca0daf6eeca65cfef6861_758ca3e7ec50b24aeb1531df7f278e6c.json",
"predict_value" : "456test"
}
}
]
}
}
