mongodb copy collection between servers

Recently MongoDB is frequently shot in the hack news. Many people are more claiming to hate Mongodb,david Mytton on his blog revealing many of the existing problems in MongoDB. But the hated one has the same many preferences, as a comeback: Russell

If you have never been familiar with MongoDB or have a little understanding of MongoDB, if you are a C # developer, take a few minutes to read this article. This article will take you step by step to get started easily. Read directory 1:

First, the introduction of replicationThe so-called replication is the process of synchronizing data between multiple hosts.1. Data redundancy and availabilityReplication technology provides data redundancy and availability, using multiple copies of

MongoDB is one of the most widely used NoSQL (not-only SQL) engines in the world, ranking very well above the db, and is the May ranking:　　You can see that the previous four are traditional relational databases, and MongoDB is the first in NoSQL.

First, what is MongoDB? MongoDB is a document-oriented database system that is different from the relational database MySQL we normally use. He writes with C + +, does not support SQL, but has its own powerful query syntax. MongoDB uses Bson as the

The 1th chapter of MongoDB installation(Dawn Hello original works, reproduced please specify)1.1 MongoDB IntroductionMongoDB is a database open source project based on distributed file storage. Written in the C + + language, it is designed to

Transferred from: http://www.cnblogs.com/cswuyg/p/4355948.html1. Count Statistics result errorThis is because the distributed cluster is migrating data, which results in a count result value error and requires the use of aggregate pipeline to obtain

1. IntroductionIt is a kind of database cluster system that expands the massive data horizontally, the data table is stored on each node of sharding, and the user can easily construct a distributed MongoDB cluster by simple configuration. So first

说明： MongoDB由databases组成，database由collections组成，collection由documents组成，document由fileds组成。MongoDB是异步写数据。Chapter I environment configuration one, MongoDB introduction Functional characteristics Scope of application Functional

MongoDB practice (MongoDB developer's appearance)Basic InformationOriginal Title: MongoDB in actionAuthor: Banker (K.) [Translator's introduction]Translator: Ding XuefengSeries name: Turing programming SeriesPress: People's post and