Introduction to Apache Hadoop & Pig

149 Pages·2010·6.4 MB·English

Introduction to Apache
Hadoop & Pig
Milind Bhandarkar
([email protected])
Y!IM: gridsolutions
Wednesday, 22 September 2010
Agenda
•
Apache Hadoop
•
Map-Reduce
•
Distributed File System
•
Writing Scalable Applications
•
Apache Pig
•
Q & A
2
Wednesday, 22 September 2010
Hadoop: Behind Ever y Click At Yahoo!
3
Wednesday, 22 September 2010
Hadoop At Yahoo!
(Some Statistics)
•
40,000 + machines in 20+ clusters
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Largest cluster is 4,000 machines
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6 Petabytes of data (compressed,
unreplicated)
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1000+ users
•
200,000+ jobs/day
4
Wednesday, 22 September 2010
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Wednesday, 22 September 2010
Sample Applications
•
Data analysis is the inner loop at Yahoo!
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Data ⇒ Information ⇒ Value
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Log processing: Analytics, repor ting, buzz
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Search index
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Content Optimization, Spam filters
•
Computational Adver tising
6
Wednesday, 22 September 2010
BEHIND
EVERY CLICK
Wednesday, 22 September 2010
BEHIND
EVERY CLICK
Wednesday, 22 September 2010
Wednesday, 22 September 2010
Who Uses Hadoop ?
Wednesday, 22 September 2010