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...

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 ....

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 ...

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...

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...

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...

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. ...

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 ...

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...

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) ....

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...

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...

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...

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...

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...

1.ES 9200 port started 2.logstashhost192.168.33.10 what is the cause of the error? How to solve it? ...

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...

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...

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...

what is the above note when I see symbols such as N (O) O (n), n (1)-O or O (naugho) ? ...