Loading presentation...

Present Remotely

Send the link below via email or IM


Present to your audience

Start remote presentation

  • Invited audience members will follow you as you navigate and present
  • People invited to a presentation do not need a Prezi account
  • This link expires 10 minutes after you close the presentation
  • A maximum of 30 users can follow your presentation
  • Learn more about this feature in our knowledge base article

Do you really want to delete this prezi?

Neither you, nor the coeditors you shared it with will be able to recover it again.


Prepared by Eng :Ahmed Shalash

Hadoop Lecture 0

ahmed shalash

on 17 February 2015

Comments (0)

Please log in to add your comment.

Report abuse

Transcript of Prepared by Eng :Ahmed Shalash

Slides based on original course by UDACITY
Prepared by Eng :Ahmed Shalash
what is data ?
Data is a collection of facts, such as numbers, words, measurements, observations or even just descriptions of things.
what is information ?

Data that is (1) accurate and timely, (2) specific and organized for a purpose, (3) presented within a context that gives it meaning and relevance, and (4) can lead to an increase in understanding and decrease in uncertainty.

what is big data ?
Data that can’t be processed in a single machine.
Big Data

data is created fast
data from different sources in various formats
Challenges for big data
3 V
what is hadoop
hadoop stores data in hdfs
what is HDFS
what is map reduce ?
it is the processing function
Full transcript