Lab 08 – MapReduce using custom class as Key
Hi, I can say lab 07 is a milestone in this BigData blog post series as it has a complete […]
Big Data, Map Reduce
Map Reduce
Big Data, hadoop, Map Reduce
Lab 07 – A mini MR project with mapper, reducer and partitioner
Hi Hadoopers, I prefer to make a milestone check at this point, hence more and more practicals are scheduled in […]
Big Data, Map Reduce
java.io.IOException: Illegal partition for Big Data (3)
Hi, I was writing a sample MR program with Partitioner for 6th lab exercise. My job failed with below given […]
Big Data, Map Reduce
Lab 06 – A simple hadoop partitioner
Hi Hadoopers, Lab 04 – A Hadoop Reducer demo talks about a MapReduce program with 3 reducers. By default Hadoop […]
Big Data, Map Reduce
Lab 05 – A hadoop combiner demo
Dear Hadoopers, Let’s fine tune our exercises by adding a Combiner. Looking at the previous exercise is recommended to understand […]
Big Data, Map Reduce
Lab 04 – A Hadoop Reducer demo
Hi Hadoopers, We have seen two posts giving you the demo on how to write simple mappers. Lab 02 – […]
Big Data, Map Reduce
Lab 03 – A Hadoop Mapper to get the category of an RSS feed with Eclipse and Maven
Dear Hadoopers, I hope you found my earlier post to write a simple mapper https://javashine.wordpress.com/2016/09/11/lab-02-a-simple-hadoop-mapper-with-eclipse-and-maven/ was interesting. Here is another […]
Big Data, Map Reduce, maven
Lab 02 – A Simple Hadoop Mapper with Eclipse and Maven
Hi Hadoopers, All the tasks given below are done on the Hadoop server. I assume you have downloaded the Eclipse […]
Big Data, hadoop, Map Reduce
Map Reduce 1 – Insight
Dear fellow Hadoopers, After a quick introduction to HDFS, my instructor started Map/Reduce concepts today. I could realize that he […]