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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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