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
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
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.