If we say that there are n comments on a product, will there be any problem if it is directly stored in a document of mongo? Is there a problem reading redis through python or php? No problem, what are you wor..
Tag : redis
For example, many documents recommend redis? What are the advantages and disadvantages of the two? To a large extent depends on the development of peacekeeping operationsredisHigh level or notmongoH..
The log information before stopping is as follows: 2017-12-26 15:12:10.857 INFO 10878 — [ Thread-3] ationConfigEmbeddedWebApplicationContext : Closing org.springframework.boot.context.embedded.AnnotationConfigEmbeddedWebApplicationContext@64a294a6: startup date [Tue Dec 26 14:53:02 CST 2017]; root of context hierarchy 2017-12-26 15:12:10.860 INFO 10878 — [ Thread-3] o.s.j.e.a.AnnotationMBeanExporter : Unregistering JMX-exposed beans on shutdown 2017-12-26 15:12:10.867 INFO 10878 — [ Thread-3] org.mongodb.driver.connection : Closed ..
I want to use it{ token: userId }The form of will be generated after logintokenSave inredisWhen the user usestokenAccording to the logintokenTo find the correspondingidHowever, when the user logs in again (such as changing the device and not exiting before), how should the previously saved ones be cleared?tokenOr reuse the ones that have not expired ..
Mongodb does persistent storage database, is it necessary to use redis to do another layer of cache? Ps: I observed the mongodb server process myself. Even if the amount of data is very small (with a capacity of more than 1g), it takes up more than 1g of memory when running. Does mongodb realize a ..
The data analysis function of the applet itself is relatively small. Do I write one myself or use my own data platform? Do you understand the small program, thank you! You are stupid, you can write it yourself …It is too difficult to write one by yourself. It takes a lot of time and effort. ..
And usage scenarios? Good performance; Less structural constraints; For example, mongodb is recommended to be used if the concurrency of the database is large and exceeds one million records per day. The reading and writing performance will be greatly improved. However, for me, it is mainly convenient to develop. Sql grammar is not as convenient ..
After checking a lot of information, I was a little confused.If Mongodb and Redis are used at the same time, will the functions repeat?My personal idea is that Mongdb will be used as a database, and then Redis will cache Top10 hot data and Session.But I read that Mongodb can also cache these. Then I ..
Looking at NoSQL these days, I still don’t quite understand the conversion from tables, rows and columns in traditional relational databases to NoSQL. For example, the simplest blog database design has a classification table, an article table and n articles for each classification. How does this traditional relational database design change to Mongodb and Redis? ..
1. What scene is suitable for redis?2. What scene is suitable for mongodb?3. What scenario is not suitable for kv database?4. Can 4.SNS-based websites completely abandon relational databases?5. Can 5.B2C websites try to use kv database? 1.redis is similar to membercache and can be used as a sustainable cache. It is not used as a ..
Problem background: Recently, an important task system within the company was reconstructed. Since the original task system used MongoDB to save tasks, the client took them from MongoDB. As for why MongoDB was used, it is a historical problem. It is also because if array queries using MongoDB can reduce the number of tasks many ..
I ran a redis container with the following command: docker run –name redis_env –hostname redis \ -p 6379:6379 \ -v $PWD/DBVOL/redis/data:/data:rw \ –privileged=true \ -d redis redis-server I successfully used Redis Desktop Manager to link this Redis server on this machine, but when I used scrapy-redis to build a distributed crawler according to the document, ..