What is Hive - Step by Step Part1

What is Hive - Step by Step Part1

  1:41 AM    ssaikgame

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Apache hive is one of the component of Hadoop built on top of HDFS and is a solution of data warehouse in Hadoop. It uses SQL Like language called HiveQL (Open Source) and it is for STRUCTURED DATA only, Generates MapReduce jobs that run on the Hadoop cluster. Originally...

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What is SQOOP? - step by step

What is SQOOP? - step by step

  4:16 PM    ssaikgame

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::SQOOP::  (SQL + HADOOP) Sqoop is one of the component of Hadoop, built on top of HDFS is meant for interacting with RDBMS systems. SQOOP == SQL + HADOOP RDBMS(Oracle or MySQL): Relational DB carries structured data. Sometimes if you are getting huge amount...

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Program to find Length of each word in Hadoop

Program to find Length of each word in Hadoop

  1:04 PM    ssaikgame

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Following program is to find the length of the each word in the given input file. For example, if your input file contains the following info "Hi SsaiK this program help someone who new to Hadoop" Output: Hadoop 6 help 4 Hi 2 new 3 program 7 someone 7 SsaiK 5 this...

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What is PIG? - Hadoop

What is PIG? - Hadoop

  3:08 PM    ssaikgame

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Apache PIG is meant for process the data i.e., for data summarization, querying and advanced querying. Pig has its own scripting language called, pig Latin scripting. Whenever we are executing PIG actions, internally Map Reduce jobs are getting triggered by the...

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Vowel and Consonant map reduce program in Hadoop

Vowel and Consonant map reduce program in Hadoop

  6:51 AM    ssaikgame

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The following program is to finds number of vowels and Consonants in the given input file, for example,  my input file is "vandc.txt" Contains:: Hello there! i love you. it contains 1 vowel ("i") and 4 consonants ("Hello, There!, love, you."), So the output would...

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What is combiner in hadoop?

What is combiner in hadoop?

  1:42 AM    ssaikgame

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What is combiner? Combiner is a Mini Reducer that performs the local reduce task, because Combiner does the same work of Reducer and uses the same program of Reducer or can use custom code too. It receives the input from the mapper on a particular node and sends the output...

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