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How do elasticsearch nested objects split query results?
there are multiple items under an order. The order object is stored in the form of nested, and an order is a piece of data.
order 1-> Commodity A, Commodity B, Commodity C, Commodity D order 2-> Commodity A, Commodity B, Commodity C, Commodity D. or...
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How to get the statistics of google meals?
suppose I want to catch the number of google meals how can I do it in php? I ve been thinking about it for a long time. I m almost done. do you use curl? but there are no similar codes to refer to ....
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Why does the type of geo_point not take effect if a field in the logstash log is set?
the architecture is simple:
filebeat collects nginx logs, output to logstash
logstash format and then output to elasticsearch
There is nothing to say about the configuration of filebeat but to send the access.log of nginx directly to logstash
...
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Elasticsearch json aggregation search
now there is a need to count user operations, because there must be a large amount of data lost in mysql, so we are going to use elasticsearch. At present, there is a problem. Post the structure directly .
{
"_index": "test_vpn_operatio...
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Questions about the Chapter "Mapping and Analysis" of elasticsearch Chinese documents
document connection here
the above example cannot be realized at all
I try the following:
POST gb tweet _bulk
{ "index": { "_id": 1 }}
{ "name" : "MySQL", "user_id" : "15", "twee...
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After Elasticsearch, uses ik participle, the result of the aggregate query is lowercase letters?
When the value of the field is AA , the result of the aggregate query is how does aa , get the original value?
make the following query:
POST 113 _search
{
"query": {
"query_string": {
"query": "J...
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10 pieces of data sampled by elasticsearch
such as the title.
how does elasticsearch sample 10 items from millions of data, which ensure the ranking of correlation and try not to repeat the search with the same conditions in a small number of times.
...
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How to organize the format of crawler crawling information?
for example, I need to climb the news and article pages of many websites. I need to extract the title, content, release time and other information of the corresponding page. But the page format of each site is different, do I have to write a crawler for ...
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Xunsearch search articles can be searched out, but search users can not.
1. I use the xunsearch search function to build a document index for two tables, one is the article table and the other is the user table 2. My configuration file has two user.ini article.ini contents as follows
project.name = user
project.default...
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Given that the elements in an array $arr, array are from 0 to N < = $N < = 1, find out whether there are any duplicate elements, which requires a time complexity of O (n), and a space complexity of O (1).
given that the elements in an array $arr, array are 0 to NMagi N < = $NMMI 1, find out whether there are any duplicate elements. The time complexity is O (n), and the space complexity is O (1) ....
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Spring Cloud distributed link tracking sleuth+rabbitMQ+ElasticSearch+Zipkin integration failed
phenomenon: the service cannot be found using ElasticSearch as the storage method. There is no problem with using MySQL as the storage method before, and the service can be found quickly now the console does not report an error
properties file...
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How does elasticsearch implement such a search?
using elasticsearch as a full-text search engine, we now encounter a problem. The index data comes from the commodity table good, assumes that the search keyword "tractor " can find 100 items of data, belonging to five enterprises, each of which upload...
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Elasticsearch is reasonable about how to design index and type.
now there are several completely different statistical data structures for a city, which are obtained from parsing tables. If you put dozens of type, under an index in the mapping of ES, there are probably dozens of type, under different Index or all und...
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What is the syntax of kibana filter mismatch?
I want to drop the url field in kibana visualize, Filter, which ends with js. How do I write query dsl?? I can t write it in the following way
{
"query": {
"bool": {
"must_not": [
{
"mat...
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Query+aggs usage problems in EalsticSearch
version: es 2.4.6 An index with string type field named seller I want to aggregate part of the data by adding query to satisfy query . As shown below, only query seller=xxx data, is it written correctly?
seller
aaa,aaa_bbb
sellerccc-dd...
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Logstash-6.2.2 startup failed
1.ES 9200 port started 2.logstashhost192.168.33.10
what is the cause of the error? How to solve it?
...
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Ask for advice: some questions about front-end / data analysis job hunting
I made my resume at night, couldn t sleep, and posted in the early morning, just for a better future!
< hr >
I graduated from a 211 university in Nanjing in 16 years and majored in information and computing science. Now I work in a state-owned milita...
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Python simulated search problem
now I want to use the simulator to simulate the relevant companies searched by enterprises. I have a text here that contains some company names. I want to do keyword matching. If it is a company, save it, otherwise delete the company. How do you do t...
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How to check whether kibana and elsasticsearch-head services are started
the kibana and elasticsearch-head corresponding to the higher version of elasticsearch are developed by nodejs, and the startup is also started through the command npm run start of nodejs
but after startup, how to determine whether the service is star...
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What is O (N) average?
what is the above note when I see symbols such as N (O) O (n), n (1)-O or O (naugho) ? ...