MongoDB

MongoDB Log switch (Rotate log Files) combat1. Under MONGO Shell, execute the logrotate command:Use admin db.runcommand ({logrotate:1})Need to run on Mongos,mongod,config server.Variants of the method:A) run under the Unix shell:MONGO

Download MongoDB's compression package from the official website. Http://www.mongodb.org/downloadsUnzip the Mongodb-linux-x86_64-2.6.8.tgz[Email protected] downloads]$ tar zxvf mongodb-linux-x86_64-2.6.8.tgz mongodb-linux-x86_64-2.6.8/ Readmemongodb-

Environment: MongoDB version: 2.4.6,replica SetDemand: Primary pressure is too high, expect secondary share reading pressureObjectiveFrom an application perspective, it is much like using replica Set and using a single MONGO. The default driver

A few days ago in Hacknew appeared an article, the title is very strong, called "Don's use MongoDB", its content is also directly expressed dissatisfaction with MongoDB , the author enumerated the MONGODB uses the process encountered various

MongoDB Auto-sharding solves the problem of mass storage and dynamic capacity expansion, but there are some distances from the high reliability and high availability required for the actual production environment, so there is a "Replica sets +

1. Execute the specified statement with the eval parameterFor example, the number of records in the T1 table that needs to query the test library is as follows:[[email protected] bin]#./mongo testMongoDB Shell version:2.6.6Connecting To:test>

MongoDB Installation/configuration (file)/startup issues: Http://www.mongodb.org/downloads[email protected] software]# LL | grep Mongodb-linux-x86_64-2.4.12.tar-rw-r--r--. 1 root root 95267358 January 6 11:02 Mongodb-linux-x86_64-2.4.12.tar[Email

For the database, in order to ensure the security of data and high availability, often use the master-slave architecture model, for MongoDB is also the case, this article will explain how to build a simple MongoDB master-slave architecture model.In

The 3.x version of MongoDB's Java driver has a completely new design compared to 2.x, and there is a big difference between class libraries and usage methods. For example, replacing basicdbobject with document, using builders class to build Bson

There are many ways to install MongoDB, you can install the source code, and you can use the Yum source installation method in CentOS. Since MongoDB is updated more quickly, I prefer to use the Yum source installation method. The installation steps

1. Install MongoDB.1. Import the public key for the package management system. Ubuntu software package management tool to ensure package consistency and reliability requires a GPG key to verify the package. Use the following command to import

There are many ways to install MongoDB, you can install the source code, and you can use the Yum source installation method in CentOS. Since MongoDB is updated more quickly, I prefer to use the Yum source installation method. The installation steps

Test Connections between all members (cluster node network test)When a MongoDB cluster is in progress, each node's network needs to interact, assuming there are 3 server nodes.M1.example.netM2.example.netM3.example.netConnections from M1.example.net

MONGO OPS Manager defaults to the enterprise version of the Monitoring management tool, if you are using a community version, you want to use Ops Manager, you need to manually install it yourself.Download MONGO Ops Manager Pack

http://www.cnblogs.com/pingfan1990/p/4558630.html ThemesMongoDBLinux such as: Choice/c:dme defrag,mem,end will show defrag , mem,end[d,m,e]?sample:sample.bat are as follows: @echo Offchoice/c:dme defrag,mem,endif errorlevel 3 Goto defrag (should

MongoDB is a document-oriented NoSQL database developed by the 10gen team. More than a year ago, MongoDB has been more and more large-scale website application to the production environment, the more famous have Foursquare, bit.ly, SourceForge,

Introducing the MongoDB Java driver packageIf the Java project that needs to manipulate MongoDB is a MAVEN project, you can add the following configuration to the dependency. dependencies ; dependency ; groupid ; org.mongodb groupid

MySQL Library has a table, the amount of data around 1 billion, basically for this table operation is meaningless, so want to test the migration to MongoDB shared architecture will be improved. So whined whined built a 3 shard MONGO environment, and

Common DB2 commandsI. Common commands Command Description Db2start Start the current instance Db2stop Stop current instance Db2stop force Force stop the current instance Db2icrt Create

Database-query optimization of the relational database systemQuery Optimization It plays an important role in the relational database system.Relational query optimization is a key factor affecting RDBMS performance.Due to the high semantic level of