Installation of MongoDB

Introduction

MongoDB (from "humongous") is a scalable, high-performance, open source, document-oriented database. Written in C++.

Installation

1. download it in here (depend on your platform)
2. unzip it into a folder. example : c:\mongodb\
3. create the database file path. example : c:\mongodb\data\
4. execute the mongodb. c:\mongodb\bin\mongod --dbpath=c:\mongodb\data\
5. the mongodb will open at port 27017(data connection) and 28017(control panel)
6. open the browser and enter the URL( http://localhost:28017 , and see the result as follow :

Extension - Master and Slave Structure

Concept(working)

we setting the Master/Slave structure in local computer.

1. create the database file paths : c:\mongod\master_data\, c:\mongod\slave_data1\, c:\mongod\slave_data2\
2. start the master : c:\mongodb\bin\mongod --master --dbpath=c:\mongod\master_data\ --port 10000
3. start the slave1 : c:\mongodb\bin\mongod --slave --source localhost:10000 --dbpath=c:\mongod\slave_data1\ --port 20000
4. start the slave2 : c:\mongodb\bin\mongod --slave --source localhost:10000 --dbpath=c:\mongod\slave_data2\ --port 30000
5. done

MongoDB on Grails

Installation

1. grails create-app mongodbTest
2. grails install-plugin mongodb-morphia
3. add data source
   grails-app/conf/DataSource.groovy

   mongodb {   host = 'localhost'   port = 27017   databaseName = 'test'   username = "YOUR_USERNAME"   password = "YOUR_PASSWORD" } }

4. grails create-mongodb-class Car
5. add some attributes for db-class
   grails-app/mongo/Car.groovy

   class Car{     String brand     String title }

6. grails generate-all Car
7. grails run-app (make sure the mongodb is open)
8. add some data by browser
9. done

Future Work

Sharding structure(working)

Reference

• quick start mongodb
• Master Slave on mongodb
• Mongodb Plugin on Grails
• Sharding Introduction