Win a copy of Mesos in Action this week in the Cloud/Virtualizaton forum!
  • Post Reply
  • Bookmark Topic Watch Topic
  • New Topic

Beyond Hello World

 
Nishant Sonar
Greenhorn
Posts: 2
Java Spring Ubuntu
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
Hello Chuck

I read hadoop books previously from O'Rielly Hadoop Definitive Guide, also followed some articles available from the Internet , but i could not go ahead of hello world program as I felt the difficulty in mapping the problem domain to writing map reduce programs. Also I felt it very difficult to map the mappers and reducers in the hadoop distributable with the problem domain.
Do you have any notion in your books towards mapping the problem in map reduce programs.

Nissshh
 
Campbell Ritchie
Sheriff
Pie
Posts: 48968
60
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
I know it is a few days since you joined, but this seems to be just about your 1st post.

Welcome to JavaRanch
 
Chuck Lam
author
Greenhorn
Posts: 12
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
One thing I kept in mind in writing the book was to have many realistic examples using MapReduce, so you can see various ways of applying it. MapReduce is a different way at structuring problems so it does take some time to get used to. Just as a event-based framework helps a lot in writing GUIs, the MapReduce framework helps in writing large data processing programs. The hurdle is getting used to a different view on this class of problems.
 
Hussein Baghdadi
clojure forum advocate
Bartender
Posts: 3479
Clojure Mac Objective C
  • Mark post as helpful
  • send pies
  • Quote
  • Report post to moderator
I'm wondering how a "Hello World" program is doable in Hadoop.
 
  • Post Reply
  • Bookmark Topic Watch Topic
  • New Topic