安装
docker network create elastic
docker pull docker.elastic.co/elasticsearch/elasticsearch:8.10.4
vim /etc/sysctl.conf
sysctl vm.max_map_count
docker run --name es01 --net elastic -p 9200:9200 -it -m 1GB docker.elastic.co/elasticsearch/elasticsearch:8.10.4
成功后会出现下图
![elasticsearch的docker安装与使用_第1张图片](http://img.e-com-net.com/image/info8/61f90571cd1f4f86a4c9d19b735a0e11.jpg)
将密码保存,可以先重置:
docker exec -it es01 /usr/share/elasticsearch/bin/elasticsearch-reset-password -u elastic
docker exec -it es01 /usr/share/elasticsearch/bin/elasticsearch-create-enrollment-token -s kibana
复制证书以供ssl访问
docker cp es01:/usr/share/elasticsearch/config/certs/http_ca.crt .
使用
connect
from elasticsearch import Elasticsearch
NODES = [
"https://localhost:9200",
"https://localhost:9201",
"https://localhost:9202",
]
ELASTIC_PASSWORD = ""
client = Elasticsearch(
NODES,
ca_certs="/path/to/http_ca.crt",
basic_auth=("elastic", ELASTIC_PASSWORD)
)
client.info()
index
mapping = {
"settings": {
"analysis": {
"analyzer": {
"latex_analyzer": {
"type": "standard",
"stopwords": "_none_"
}
}
}
},
"mappings": {
"properties": {
"question": {
"type": "text",
"analyzer": "latex_analyzer"
}
}
}
}
es.indices.create(index="questions_index", body=mapping)
insert
from elasticsearch import Elasticsearch, helpers
insert_df = df["question"].to_frame()
insert_df.head()
def doc_generator(df, index_name):
df_iter = df.iterrows()
for index, document in df_iter:
yield {
"_index": index_name,
"_id": index,
"_source": document.to_dict(),
}
helpers.bulk(es, doc_generator(insert_df, 'questions_index'))
query
search_query = {
"query": {
"match": {
"question": "数轴上A、B两点所表示的有理数的和是"
}
}
}
response = es.search(index="questions_index", body=search_query)
for hit in response['hits']['hits']:
print(hit['_source']['question'])
import ujson
query_string = '''{
"query": {
"bool": {
"must": [
{
"bool": {
"must": [
{
"bool": {
"should": [
{
"multi_match": {
"query": "数轴上A、B两点所表示的有理数的和是",
"fields": ["question^3", "question.raw^3", "question.search^1", "question.autosuggest^1", "question.english^1"],
"type": "cross_fields",
"operator": "and"
}
},
{
"multi_match": {
"query": "数轴上A、B两点所表示的有理数的和是",
"fields": ["question^3", "question.raw^3", "question.search^1", "question.autosuggest^1", "question.english^1"],
"type": "phrase",
"operator": "and"
}
},
{
"multi_match": {
"query": "数轴上A、B两点所表示的有理数的和是",
"fields": ["question^3", "question.raw^3", "question.english^1"],
"type": "phrase_prefix",
"operator": "and"
}
}
],
"minimum_should_match": "1"
}
}
]
}
}
]
}
}
}'''
query_dict = ujson.loads(query_string)
response = es.search(index='questions_index', body=query_dict)
for hit in response['hits']['hits']:
print(hit['_source'])