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01 MongoDB test procedure description This paper mainly tests the efficiency of mongodb inserting data. Using the mongodb secondary development interface provided by a teacher. The data structure is: Struct keyvalmeta{ Char name[64]; Int valType; DateTime nStartTime; DateTime nEndTime; Int nUserDefMetaSize; Char* pUserDefMetaDat; } ...

MongoDB database is used in the company's project. Here we introduce the relevant knowledge, installation and configuration of MongoDB. Introduction to MongoDB MongoDB is written in C + + language. It is an open source database system based on distributed file storage. In the case of high load, adding more nodes can ensure the server perform ...

MongoDB cluster and security Replica set It is a group of Mongod services that maintain the same data set. Replica set can provide redundancy and high availability. It is the basis of all production deployments. At the same time, it is also similar to the master-slave cluster with automatic fault recovery function. Multiple machines are ...

        The previous article introduced the operation of CRUD of MongoDB using MongoTemplate. Then, the previous article will continue to introduce the operation of CRUD of MongoDB using MongoRepository.          To review the above articles, you can click the link to view the link   CRUD Mong ...

1 ES data organization concept The data organization concept of ES is compared with MySQL and MongoDB as follows:( "Most popular" basis) Note that the concept of ES Index here is similar to that of MySQL database, which is easy to be confused later. What is more noteworthy is that after ES6, multiple types are not allowed in ...

It is important to consider the data requirements of the application from the beginning of development. However, if your application will use NoSQL and you are from an RDBMS/SQL background, you may think it may be difficult to view data based on NoSQL. This article will help you by showing you how some basic data modeling concepts can be applie ...

1, Build three Mongodb instances See the following for the construction steps: Construction of MongoDB. The planning is as follows: ipMongoDB portReplica roleMongodb version172.16.113.13727017Primary3.2.10172.16.113.13727018Secondary3.2.10172.16.113.12927017Secondary3.2.10 Parameter Description: parameterexplainExamplereplSetReplica set ...

preface This article mainly introduces the deployment and configuration of MongoDB replica set, based on the previous article MongoDB CentOS 7 installation and deployment Differences between master-slave replica sets and replica sets The biggest difference between master-slave cluster and replica set is that replica set has no fixed mast ...

First of all, a digression, the black apple of NUC is really fragrant! The company installed a black apple for the NUC. After using it for a period of time, I felt that the landline at home was tasteless and decided to start a NUC. The integration software MxSrvs used in the company's development environment is also very easy to use. But I ...

1 Node Node provides us with a JavaScript code running environment that can directly interact with the operating system without relying on the browser. It can directly use JS to write background programs, so that foreground developers can also quickly develop background code, that is, HTML+JavaScript+MongoDB; Instead of Tomcat, the foregr ...