(original) allows MongoDB's secondary to support read operations

The secondary node in the replica set is not readable by default. in applications where there is less write-read, the replica sets is used to achieve read-write separation. By specifying Slaveok at the time of connection, or by specifying the

Solve the problem of slow MongoDB query

Recently the project has been using MongoDB as a database, MongoDB has his advantage, the document type JSON format to store data, modified than the traditional relational database more convenient, but recently in MongoDB with the query slow problem,

Bson and MongoDB

MongoDB uses bson as the file data storage and network transmission format, first impression bson is a bit like blob , : Mongo database bson internal . This means MongoDB Yes " reached " bson object, or even

MongoDB full-text search and tagging

Simple translation. Original article: http://www.mongodb.org/display/DOCS/Full+Text+Search+in+Mongo MongoDB adds an array of tags to implement the tag function ). OBJ = {Name: "Apollo ",Text: "Some text about Apollo moon landings ",Tags: [

Asp.net MVC + MongoDB + autofac to build a lightweight Blog system (2)

The first is to paste my vs2010 skin to everyone. Many people want to use this skin .. I will not send emails to you one by one. Http://files.cnblogs.com/n-pei/Exported-2011-03-31.zip   SeriesArticleIndex: Asp.net MVC + MongoDB + autofac to

Adhesive framework series-MongoDB data service module usage (I)

Previously introduced applicationsProgramAll logs, exceptions, performance, and status data in the information center module depend on the MongoDB data service. The interfaces of the MongoDB data service are also simple: Public

MongoDB initial experience-C #

I think we have used relational databases as frequently-used tools as the tietong header. in the software development process, almost all the data storage is inseparable from relational databases, ms SQL, etc ). after several years of design

MongoDB is configured and accessed through the configuration file in Windows

MongoDB configuration file Configuration:Step 1: create a file in the "D: \ MongoDB" directory. The command method is not limited. For example, create a MongoDB. step 2 of conf: In MongoDB. in Conf, configure the required configuration items. For

MongoDB permission management-user name and password operations

 By default, users can log on to apsaradb for MongoDB without entering the user name and password. However, for the sake of security, we still need to set the user name and password for it. This document describes how to operate the username and

MongoDB simple query

I have been idle for a while recently, and I have been able to spend enough time studying code integration. Because there are too many linguistics, I gradually feel that it is meaningless. I learned a little from other groups using MongoDB. In view

Install and configure MongoDB in Linux

Here I use centos as its running carrier. 1. Download MongoDB Linux version (note the difference between 32-bit and 64-bit),: http://www.mongodb.org/downloads 2. Put the downloaded MongoDB Installation File mongodb-linux-i686-1.6.5.tgz

Limits MongoDB memory usage

Limits MongoDB memory usage Because MongoDB's memory is managed by the system's virtual memory, MongoDB does not interfere with memory management. This can simplify Mongo's work, but the memory usage of Mongo cannot be controlled at the same time.Is

Mapreduce with MongoDB and Python

1. install and use MongoDB A) download MongoDB. Note that 32bit can only store 2 GB of content (32-bit builds are limited to around 2 GB of data ). B) Configure MongoDB. config and run the command line mongod.exe -- config/path/to/Your/MongoDB.

MongoDB uses the $ in Method to Improve Operation Efficiency

Many users like to use PHP loop operations in MongoDB operations. This method is very inefficient and can be optimized. 1. Query: There are two methods: loop query in PHP and $ in. An example of querying 1000 data entries is as follows: // Loop

MongoDB Study Notes-download and install

MongoDB is a high-performance, open-source, and non-pattern document-based database. It is a popular nosql database. It can be used in many scenarios to replace traditional relational databases or key/value storage methods. Mongo is developed using

MongoDB (4)-start of MongoDB Service

Document directory Original Method Configuration file Method Daemon Method Original Method The MongoDB function can be used only when the MongoDB service is started. Normally, a command window is opened and the following command is entered

Mongodb Guide (translation) (iii)-developer zone-Quick Start of MongoDB

This chapter is available in the official documentation at home-Quickstart.   Quick Start on OS X Install MongoDB The simplest way to install MongoDB is to use the Package Manager or pre-compiled binary files: Package Manager If you use homebrew

Mongodb Guide (translated) (12)-developer zone-data types and conventions (1)

MongoDB (BSON) Data Type In addition to the basic JSON types: string, integer, boolean, double, null, array, and object, mongo also uses special data types. These types include date, object id, binary data, regular expression, and code. Each driver

Install the mongodb extension of PHP on Linux (centos)

View Original: http://yzswyl.cn/blread-1301.html Download the corresponding mongodbclient at http://pecl.php.net/package/#. this example is 1.2.1. # Wget http://pecl.php.net/get/mongo-1.2.1.tgz# tar xvzf mongo-1.2.1.tgz # cd mongo-1.2.1 # phpize

8 days learning MongoDB-7 days O & M Technology

From the Administrator's perspective, as an administrator, we often see four main aspects: 1. installation and deployment 2. Status Monitoring 3. Security Authentication 4. backup and recovery, Next we will explain it.   I. installation and

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