using mongodb

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Shardkey Selection in MongoDB

Shardkey needs to be selected for sharding of collections stored in the MongoDB database. The selection of Shardkey determines whether the data distribution in the cluster is balanced. Sharding Key (Shard key) must be selected for sharding of

Mongodb replica set

Mongodb replica set After the parameters are configured on the node respectively, the following hapame-db is displayed :~ # Cat/etc/mongod. conf | grep jieshireplSet = jieshi restart the MongoDB server and ensure that there are no other databases

MongoDB: configurations of mongodb in the spring Project

I am currently working on the mongodb-based spring Project architecture. I have a question to share with you, and I will be able to use it later. I will first look at a simple project architecture: in terms of architecture, the only thing that needs

How to evaluate Facebook's relay framework? What is Meteor.js?

http://www.zhihu.com/question/34531232?rf=34500201What is Meteor.js?Chen TianLinks: http://www.zhihu.com/question/20296322/answer/16089122Source: KnowCopyright belongs to the author, please contact the author for authorization.Meteor's official

Mongod common operations on Windows

D: \> Cd MongoDB D: \ MongoDB> mongod -- Help ** Note: When Using MongoDB 32 bit, you are limited to about 2 gigabytes of data** See Http://blog.mongodb.org/post/137788967/32-bit-limitations ** With -- dur, the limit is lower Allowed

Install and run MongoDB in win7

1) download MongoDBHttp://downloads.mongodb.org/win32/mongodb-win32-i386-2.4.5.zip Download and decompress windows 32-bit. The program files are in the bin directory. The other two directories are the header files and library files called by C ++.

Memcache and MongoDB

Let's talk about some of my views on memcache and MongoDB. I hope to see your comments and comments.   Memcache   The advantages of memcache are summarized as follows: 1) distributed. 10 machines with 4 GB memory can form a 40 Gb memory

[Switch] Tsung's openfire stress test

1. Reference http://blog.csdn.net/foxisme2/article/details/7521139 Http://blog.csdn.net/foxisme2/article/details/7528148 The command used to generate the test report is used because the installation path of Tsung on my local machine is different

Simple deployment of rockmongo in centeros

Using MongoDB makes it very convenient to debug query, View Collection, and other States with rockmongo. The deployment of rockmongo is studied, mainly for Web servers dependent on the PHP environment. Currently, there are two types of servers:

MongoDB survey summary

[From: http://like-eagle.iteye.com/blog/850401]   Compared with relational databases, MongoDB has the following advantages:① Weak consistency (eventual consistency) ensures the user access speed:For example, in a traditional relational database, a

tutorial on using Python to manipulate elasticsearch data indexes

Elasticsearch is a distributed, restful search and Analysis server, like Apache SOLR, which is a lucence-based index server, but I think the advantage of Elasticsearch versus SOLR is: Lightweight: Easy to install, download the file after a

PhpClass 'composer client' NOTFound

PhpClass 'official client' NOTFound: install the latest php_mongodb.dll extension corresponding to the official version for php7.0.4 in windows. the extension version is 1.1.6 and supports the highest version of MongoDB3.2 and php7.0 ,; you can see

Code that uses pymongo to allow collection parts

We usually need to store big text data into MongoDB. After sharding, the best storage method is to allow dB sharding and specify the sharding method (shard key) of the collection ). This operation can be easily completed using MongoDB shell, but

Databases: Advantages and Disadvantages of mongodb compared with relational databases zz

Compared with relational databases, MongoDB has the following advantages:① Weak consistency (eventual consistency) ensures the user access speed:For example, in a traditional relational database, a COUNT operation locks the dataset to ensure that

In-depth nosql

Deep nosqlBasic InformationOriginal Title: Professional nosqlAuthor: (printed) Tiffany [Translator's introduction]Translator: juchengPress: People's post and telecommunications PressISBN: 9787115296382Mounting time:Published on: February 1, November

Rapid deployment of Java applications in CentOS 6

Rapid deployment of Java applications in CentOS 6 At present, the vendors that provide IDC services are really varied, but there are only a few correction services in place. We recommend that you use Windows for time consideration. At least it will

Test the real performance of MangoDB

It is said that MongoDB is slow. Objection: If no unique index is set, tens of thousands are inserted per second on a common office computer with only _ id, and tens of thousands are inserted per second on a common x86 server, what do you mean is

Talk about the challenge of Momo hegemony in Database (previous article)

The Momo hegemony project was not named at the beginning. In 2013, it was just a test project our company used to test mobile games. The goal was very clear at the very beginning. COC was the first online game to impress me on the mobile platform.

Talk about the challenge of Momo hegemony in Database (mongoDB)

Our company started to use mongoDB not because of the technical selection, but because the developer of the first game crazy blade we acted on chose it. After our agency agreement was signed, this game entered a period of nearly one year. Many

NoSQL Civil War: Comparison between MongoDB and CouchDB query methods

BKJIA: Both MongoDB and CouchDB are document-oriented databases, both of which use JSON document formats. They are generally seen as NoSQL databases and are very fashionable nowadays, there are many commonalities, but the difference between the two

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