group : lê minh hi ế u phan th ị thanh th ả o ph ạ m hoàng long nguy ễ n huy hùng 1 big...

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Group : Lê Minh HiếuPhan Thị Thanh ThảoPhạm Hoàng LongNguyễn Huy Hùng

BIG DATA – NoSQLTopic 1

2Contents Big Data

Introduction Definition Characteristics

NoSQL Definition Database types Characteristics Support NoSQL tools Advantage and disadvantage of

NoSQL Take away

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Following Vice President of Infrastructure Engineering at Facebook:

Introduction

4Definition

BIG DATA NoSQL Take away!

Data sets -> software tools (capture, manage, and process data)

Structured, semi-structured and unstructured data

About Petabytes (PB) and Exabyte (EB) of data• PB = 2 to the 50th power

bytes.• EB = 2 to the sixtieth power

bytes.

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Characteristic

Volume refers to the amount of data

Variety refers to the number of types

of data

Velocity refers to the speed of data

processing

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Characteristic

Variability - refers to the inconsistency which can be shown by the data at times

Veracity - refers to the quality of the data being captured can vary greatly.

Complexity - refers to complex process management data

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Advantage and Disadvantage of Big Data

Advantages

Flexible schema

Quicker/ cheaper to set

up

Massive scalability

Eventual consistency

=> higher performance

and availability

Disadvantages

No declarative query

language => more

programming

Eventual consistency =>

fewer guarantees

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What is Big Data

Characteristics of Big Data

18Reference

What is Big Data? URL:http://en.wikipedia.org/wiki/Big_data. Retrieved April 19 th 2015

Big Data definition. URL:http://searchcloudcomputing.techtarget.com/definition/big-data-Big-Data. Retrieved April 19 th 2015

Big Data characteristics. URL:http://bigdatahandler.com/2013/10/23/big-data-characteristics-problems-and-solution. Retrieved April 19 th 2015

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