What is the differences between Hadoop 1, Hadoop2, and Hadoop3?

[#1]

@Riddhi Sam

For an explanation of the evolution of Hadoop 1 to Hadoop 2 take a look at this article/blog-post:

http://www.tomsitpro.com/articles/hadoop-2-vs-1,2-718.html

For an explanation of what to expect with Hadoop 3 read the below:

https://hortonworks.com/blog/data-lake-3-0-deploy-minutes-cut-tco-half/

https://hortonworks.com/blog/data-lake-3-0-part-2-multi-colored-yarn/

Also, take a look at the below presentation from Dataworks Summit that covers YARN past, present and future:

https://www.youtube.com/watch?v=PRsr1hgidQI&index=137&list=PLQ-KRsI-e9bBoDjQV_pe7L9171r2Sddsr

[#2 · Accepted solution]

Apache Hadoop has an official wiki page that summarized major changes across 1.x, 2.x. Hope that helps.

https://wiki.apache.org/hadoop/Roadmap

[#3]

Below is the very good article for differences between hadoop 2.x and Hadoop 3.x

Difference Between Hadoop 2 and Hadoop 3

[#4]

@Riddhi Sam

I found these two article, one compare for Hadoop1 Vs Hadoop2, and one compare for Hadoop2 VS Hadoop3

Hope it can answer your question.

[#5]

this one also helpful:

http://data-flair.training/blogs/hadoop-2-x-vs-hadoop-3-x-comparison/