Tag Archives: hadoop interview

Top 20 Hadoop MapReduce Interview Questions

BigData and Data analytics Jobs are the most sought after jobs of current time. It is important to understand the basics before you appear for interview. In this post, I am covering few of the basic MapReduce interview questions for Hadoop MapReduce. saurzcode_hadoop
  1. What is MapReduce ?
  2. What is combiner and when you … Continue Reading ››

How-To : Setup Development Environment for Hadoop MapReduce

This post is intended for folks who are looking out for a quick start on developing a basic Hadoop MapReduce application. We will see how to set up a basic MR application for WordCount using Java, Maven and Eclipse and run a basic MR program in local mode , which is easy for debugging at an early stage. Assuming JDK 1.6+ is … Continue Reading ››

How-To : Connect HiveServer2 service with JDBC Client ?

HiveServer2 (HS2) is a server interface that enables remote clientsto execute queries against Hive and retrieve the results. The current implementation, based on Thrift RPC, is an improved version of HiveServer and supports multi-client concurrency and authentication. It is designed to provide better support for open API clients like JDBC and ODBC.imagesContinue Reading ››