Your SlideShare is downloading. ×
SDEC2011 Essentials of map reduce
Upcoming SlideShare
Loading in...5
×

Thanks for flagging this SlideShare!

Oops! An error has occurred.

×

Introducing the official SlideShare app

Stunning, full-screen experience for iPhone and Android

Text the download link to your phone

Standard text messaging rates apply

SDEC2011 Essentials of map reduce

883
views

Published on

Published in: Technology

0 Comments
1 Like
Statistics
Notes
  • Be the first to comment

No Downloads
Views
Total Views
883
On Slideshare
0
From Embeds
0
Number of Embeds
0
Actions
Shares
0
Downloads
103
Comments
0
Likes
1
Embeds 0
No embeds

Report content
Flagged as inappropriate Flag as inappropriate
Flag as inappropriate

Select your reason for flagging this presentation as inappropriate.

Cancel
No notes for slide

Transcript

  • 1. Confidential, for personal use only. All original content copyright owned by Treasury of Ideas LLC. Copyright for all other & referenced work is retained by their respective owners.Essentials of MapReduceMastering Hadoop Map-reduce for Data AnalysisShashank Tiwariblog: shanky.org | twitter: @tshankyst@treasuryofideas.com
  • 2. Confidential, for personal use only. All original content copyright owned by Treasury of Ideas LLC. Copyright for all other & referenced work is retained by their respective owners.Understanding Map Reduce
  • 3. Confidential, for personal use only. All original content copyright owned by Treasury of Ideas LLC. Copyright for all other & referenced work is retained by their respective owners.Understanding Map Reduce
  • 4. Confidential, for personal use only. All original content copyright owned by Treasury of Ideas LLC. Copyright for all other & referenced work is retained by their respective owners.Understanding Map Reduce
  • 5. Confidential, for personal use only. All original content copyright owned by Treasury of Ideas LLC. Copyright for all other & referenced work is retained by their respective owners.Understanding Map Reduce
  • 6. Confidential, for personal use only. All original content copyright owned by Treasury of Ideas LLC. Copyright for all other & referenced work is retained by their respective owners.Understanding Map Reduce
  • 7. Confidential, for personal use only. All original content copyright owned by Treasury of Ideas LLC. Copyright for all other & referenced work is retained by their respective owners.Walk Through a Map Reduce Example• A mapper class that emits key/value pairs.• A reducer class that takes the values emitted from mapper and manipulates it to create aggregations. In the data upload example, the mapper only inserts the data into an HBase table.• A driver class that puts the mapper class and the reducer class together.• A class that triggers the job in its main method • NYSE HLOC Data Hadoop MapReduce
  • 8. Confidential, for personal use only. All original content copyright owned by Treasury of Ideas LLC. Copyright for all other & referenced work is retained by their respective owners.Questions?• blog: shanky.org | twitter: @tshanky• st@treasuryofideas.com