Learning

Starting Eclipse and running MapReduce Program =============================== Step1: Open the home directory Step2: Go inside the eclipse directory Step3: Doube click on the eclipse.exe file to open the eclipse IDE Step4: Provide the workspace path Next the eclipse IDE Starts and look like this Step5: Just close the workbench After closing the workbench you will see something like below figure Step6: Now let’s create a project           Right click in Project explorer Select → New → Project → Map/Reduce Project Next Provide Project Name → Wordcount in the Project name field Next Provide Project Name → Wordcount Next Configure hadoop installation directory Click on → Configure hadoop installation directory Next click → Browse → goto hadoop installation directory I.e,. /usr/local/hadoop → Ok → ok → next → finish Once done you will see something like below fig

INTRODUCTION Sqoop is a tool designed to transfer data between Hadoop and relational databases or mainframes. You can use Sqoop to import data from a relational database management system (RDBMS) such as MySQL or Oracle or a mainframe into the Hadoop Distributed File System (HDFS), transform the data in Hadoop MapReduce, and then export the data back into an RDBMS. Sqoop automates most of this process, relying on the database to describe the schema for the data to be imported. Sqoop uses MapReduce to import and export the data, which provides parallel operation as well as fault tolerance. Steps for Installation Step 1 - Download sqoop-1.4.4.bin hadoop-1.0.0.tar.gz from the mirror website sqoop.apache.org wget http://mirror.cogentco.com/pub/apache/sqoop/1.4.4/sqoop-1.4.4.bin__hadoop-1.0.0.tar.gz Step 2 - Untar the downloaded file tar -xvzf sqoop-1.4.4.bin__hadoop-1.0.0.tar.gz Step 3 - Copy the extracted folder in /usr/local/sqoop location sudocp -