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Author: Yang Taotao Senior database expert, specializing in MySQL for more than ten years. Good at mysql, PostgreSQL, MongoDB and other open-source database related backup and recovery, SQL tuning, monitoring operation and maintenance, high availability architecture design, etc. At present, he is working in aikesheng, providing MySQL related ...

Front of Article About Versions rely on Edition springboot 2.0.8.RELEASE mongodb 4.0.14 This content is just to introduce the most basic use and configuration of mongodb. As a well-known database, it has quite a lot of advanced usage. It will expand to introduce a lot of content. Of cours ...

MongoDB has supported the change stream capability since version 3.6 (many enhancements have been made in versions 4.0 and 4.2) for subscribing to modifications within MongoDB. change stream can be used for incremental data migration, synchronization between MongoDB and for applying MongoDB's incremental subscription to other related systems; f ...

1. Install hubot 1.1 install node.js and npm yum install -y nodejs npm npm install -g inherits n yum install -y curl 1.2 install yo generator hub npm install -g yo generator-hubot npm install coffee-script -save //The following packages are optional: npm install hubot-test-helper --save-dev npm install expect.js npm ...

The mongodb configuration file is as follows: [root@localhost ~]# cat /usr/local/mongodb/mongod.cnf bind_ip = 0.0.0.0 logpath=/data/mongodb/logs/mongodb.log logappend = true fork = true #auth = true port = 6068 dbpath=/data/mongodb/data pidfilepath=/data/mongodb/mongod.pid root super administrator privileges:Close mongod.cnf profile parameter ...

mongod.exe --bind_ip 192.168.1.202 --port 50001 --logpath E:\MongoDB\logs\log.txt --logappend --dbpath E:\MongoDB\data\db --replSet zhangwei mongod.exe --bind_ip 192.168.1.202 --port 50002 --logpath E:\MongoDB\logs\log1.txt --logappend --dbpath E:\MongoDB\data\db1 --replSet zhangwei mongod.exe --bind_ip 192.168.1.202 --port 50 ...

MongoDB Basic Installation Overview of MongoDB (1) MongoDB is a database based on distributed file storage.Written in C++.Designed to provide scalable high performance data storage solutions for WEB applications. (2) MongoDB is a product between relational and non-relational databases, which is the most rich and similar to relational databases ...

MongoDB is a database based on distributed file storage. Written in C + +. It aims to provide scalable high-performance data storage solutions for WEB applications. MongoDB is a product between relational database and non relational database. It has the most abundant functions and is the most like relational database.1. Download and unzip mong ...

problem This is an online problem. Under the condition of low qps(2000 database accesses per second), 100 worker processes and 100 Max ﹣ overflow processes, the performance of a service node suddenly declines, and only 1500 database accesses can be processed per second. As a result, the request processing delay increases from several ms to sev ...

mongodb add user This tutorial introduces some operations of adding users in mongodb What are the users in mongodb In mongodb, users are used to manage the permissions of each database. In order to control the permissions of the database, users need to be added, assigned permissions to the specified users, and specific users need to do specific ...