CCD-410 Preparation

General Topics 

• http://hadoop-gyan.blogspot.com/2012/11/map-reduce.html 

Partition 

• http://www.hadoopmaterial.com/2013/10/custom-partitioner.html
• http://hadooptutorial.wikispaces.com/Custom+partitioner

Sequence File 

• http://thinkbiganalytics.com/hadoop-sequence-files-and-a-use-case/
• http://dailyhadoopsoup.blogspot.com/2014/01/sequence-file.html

Sorting using Hadoop – TotalOrderPartitioner

• https://pipiper.wordpress.com/2013/05/02/sorting-using-hadoop-totalorderpartitioner/

NLineInputFormat in Java MapReduce 

• http://hadooped.blogspot.com/2013/09/nlineinputformat-in-java-mapreduce-use.html

MultipleInputs

• http://www.lichun.cc/blog/2012/05/hadoop-multipleinputs-usage/

DBInputFormat & DBOutputFormat

• https://archanaschangale.wordpress.com/tag/dbinputformat/

job.setJarByClass

• http://www.bigdataspeak.com/2014/06/what-is-need-to-use-jobsetjarbyclass-in.html

Difference between job.submit & job.waitForCompletion

• http://stackoverflow.com/questions/16702298/what-is-the-difference-between-job-submit-and-job-waitforcomplete-in-hadoop
• http://stackoverflow.com/questions/7483624/running-jobs-parallely-in-hadoop

Map Join & Reducer Join 

• http://codingjunkie.net/mapreduce-reduce-joins/
• http://hadoop-learner.blogspot.com/2013/07/hadoop-certification.html
• http://dailyhadoopsoup.blogspot.com/2014/02/mapreduce-inputs-and-splitting.html

Sample Questions: 

• http://www.aiopass4sure.com/cloudera-exams/ccd-410-exam-questions/which-invocation-correctly-passesmapredjobname-with-a-value-of-example-to-hadoop.html

MultipleInputs :

• http://halitics.blogspot.com/2013/10/multiple-input-files-example-prog.html