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Distributed system, Cloud, Hadoop etc.

/Distributed system, Cloud, Hadoop etc.

Simple Hive UDF example

By |January 3rd, 2014|

Today I explored how to write your own custom UDF  in HIVE. There are two ways to create your UDF, one is  simple and the other is complex. The simple one allows you to create UDF with primitive Hadoop datatypes such as  Text, IntWritable, LongWritable, DoubleWritable, etc. extending UDF class.  For richer data types Map, List, Set you need to use the complex one extending GenericUDF class.

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Map Reduce Exec engines: Azkaban vs Oozie (Part II)

By |December 23rd, 2013|

Map Reduce Exec engines: Azkaban vs Oozie (Part I)

By |December 12th, 2013|

“Vertica > PIG > Hadoop” on Counting Triangle problem

By |November 26th, 2013|

Playing with Hadoop Pig

By |November 25th, 2013|

SQL and pig!

Writing Hive Custom Aggregate Functions (UDAF): Part II

By |November 20th, 2013|

Writing Hive Custom Aggregate Functions (UDAF): Part I – Setting Eclipse

By |November 20th, 2013|

Technical: Hadoop – Sqoop on Cloudera (CDH) – Is Sqoop Set up and Configured for MS SQL Server

By |November 20th, 2013|