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LEANDRO DA COSTA GONÇALVES
INTRODUTION
 Framework for distributed computing;
 Used in clusters/grids;
 Thousands of nodes;
 Common hardware;
 Petabytes of data;
 Open Source (Apache license);
 Java;
 Originally inspired by Google's MapReduce and GFS.
WHO USES HADOOP?
 FACEBOOK;
 GOOGLE;
 YAHOO;
 STOCK EXCHANGE FROM NEW YORK;
 CERN.
PRINCIPALS COMPONENTS
Auto-recovery
High bandwidth consuption
Clustering
Highly tolerant of failures
Fault Tolerance
Distributed processing
LIFE CYCLE OF MAPREDUCE
MAPREDUCE OF WORD COUNT
MAPPER
REDUCER
THE MAIN
THE HADOOP ECOSYSTEM
CONCLUSION
BigData
The foundations Apache and Spring Source
Google and Facebook
Social networks

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