Learn Hadoop Administration

Apache Hadoop Introduction

Apache Hadoop Installation

à We can install Hadoop on any operating system and on any hardware.

à  We can install on On-Premise or Any Cloud.

We can install Hadoop in 3ways. They are:

1.     Standalone/Local Mode

2.     pSudo Distribution Mode

3.     Fully Distribution Mode.

 

Standalone/Local Mode: -

à In this mode all Daemons runs on Single Machine and on Single JVM.

à It will not be distributed concept

à It will use local filesystem

à It is only for Development, not for Testing purpose, not for production

    purpose.

à The main advantage of this mode is Debugging  

 

pSudo Distribution Mode: -

à In this mode all Daemons runs on Single Machine but on different JVM.

à This mode uses Distributed concept

à It uses HDFS Filesystem

à This mode only Development not for Testing Purpose, Not for Production

    purpose.

           

Fully Distribution Mode: -     

à In Fully Distribution Mode, All Daemons runs on different machines and

    on different JVM's.

à It is Highly Recommended to run All Master Daemons on separate machines.

à It is Highly Recommended to run All Slave Daemons on same machine

    But we will take multiple slave machines.

à This Mode is for Development, Testing and Production.