Constraints on Key-values in Mapreduce


Hadoop Data Types 3

Hadoop provides Writable interface based data types for serialization and de-serialization of data storage in HDFS and mapreduce computations. Serialization Serialization is the process of converting object data into byte stream data for transmission over a network across different nodes in a cluster or for persistent data storage. Deserialization Deserialization is the reverse process of serialization and converts byte stream data into object data for reading data from HDFS. Hadoop […]


Review Comments
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I am a plsql developer. Intrested to move into bigdata.

Neetika Singh ITA Hadoop in Dec/2016 December 22, 2016

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