Hadoop-Cluster Upgrade

  • date 1st March, 2019 |
  • by Prwatech |
  • 0 Comments

 

How to upgrade Hadoop 1.2.0 to Hadoop 2.6.0 in few steps?

 

Upgrade Hadoop 1.2.0 to Hadoop 2.6.0, In This tutorial, one can easily know the information about How to upgrade Hadoop 1.2.0 to Hadoop 2.6.0 which are available and are used by most of the Hadoop developers and self-learners. Are you dreaming to become to certified Pro Hadoop Developer, then stop just dreaming, get your Hadoop certification course from India’s Leading Hadoop Training institute in Bangalore.

 

This Hadoop cluster upgrade may be required when you upgrade from the older version of the Hadoop cluster to a newer version. Do you want to upgrade Hadoop 1 to 2, So follow the below mentioned Hadoop cluster upgrade steps from Prwatech and learn Hadoop course like a pro from today itself under 15+ Years of Hands-on Experienced Professionals.

 

Hadoop cluster upgrade steps :

 

♦ Step 1: You must have a 1.2.0 running cluster.

 

hadoop cluster setup

 

♦ Step 2: Upgrade java8

 

Hadoop cluster upgrade - Upgrade java8

 

♦ Step 3: Check any upgrade is going on or not.

 

Hadoop cluster upgrade

 

♦ Step 4: Make backup for all data, file of HDFS. using the below command.

 

Hadoop cluster upgrade - take backup to all data

 

♦ Step 5:- Close your Cluster

 

Hadoop cluster upgrade - close your cluster
♦ Step 6:- Download Hadoop 2.6.0 and untar that

 

Hadoop cluster upgrade - download hadoop 2.6.0

 

♦ Step 7:- Set .bashrc for new Hadoop

 

Hadoop cluster upgrade - set for new hadoop

 

♦ Step 8:- Check Hadoop version

 

Hadoop cluster upgrade - check hadoop version

 

♦ Step 9:- Set all the configuration files.

 

core-site.xml
hdfs-site.xml
mapred-site.xml
yarn-site.xml
Hadoop-env.sh

(Refer Hadoop-Singlenode 2.x blog)

 

♦ Step 10:- Now upgrade your name node

 

Hadoop cluster upgrade - upgrade namemode

 

♦ Step 11:- Check NameNode started or not

 

Hadoop cluster upgrade - check namemode

 

♦ Step 12:- Start DataNode

 

Hadoop cluster upgrade - start data node

 

♦ Step 13:- Now finalize your upgrade

 

Hadoop cluster upgrade - finalize upgrade

 

♦ Step 14:- Start other daemons

 

Hadoop cluster upgrade

 

Become a certified expert in Hadoop technology by getting enrolled from Prwatech E-learning India’s leading advanced Hadoop training institute. Register Now for more updates on Hadoop upgrades. Our expert trainers will help you towards mastering real-world skills in relation to these Hadoop technologies.

 

 

Leave a Reply

Your email address will not be published. Required fields are marked *

Quick Support

image image