• Post Reply Bookmark Topic Watch Topic
  • New Topic
programming forums Java Mobile Certification Databases Caching Books Engineering Micro Controllers OS Languages Paradigms IDEs Build Tools Frameworks Application Servers Open Source This Site Careers Other Pie Elite all forums
this forum made possible by our volunteer staff, including ...
Marshals:
  • Campbell Ritchie
  • Paul Clapham
  • Tim Cooke
  • Jeanne Boyarsky
  • Liutauras Vilda
Sheriffs:
  • Frank Carver
  • Henry Wong
  • Ron McLeod
Saloon Keepers:
  • Tim Moores
  • Frits Walraven
  • Tim Holloway
  • Stephan van Hulst
  • Carey Brown
Bartenders:
  • Al Hobbs
  • Piet Souris
  • Himai Minh

How closely coupled is Mahout to Hadoop and MapReduce?

 
Ranch Hand
Posts: 74
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
Hi,

Thanks for your answers to my "Questions about Mahout's maturity" post.

Are the algorithms implemented by Mahout all implemented in Hadoop, i.e., does using Mahout imply that the problem can be implemented in Hadoop and is therefore amenable to implementation in MapReduce? As Mahout is about scalability, I suppose this question is getting at whether all of its scalability is, in the end, based on MapReduce.

Also, is there something in the book about running on Google AppEngine (GAE) and Amazon EC2?

Thanks,
Glenn
 
Ranch Hand
Posts: 172
Redhat Ruby C++
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
I was about to ask the same thing. About one of the wuestions that you made, I read is that the GAE would do MapReduce jogs soon.
 
author
Posts: 21
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
Most of it is based on Hadoop / MapReduce, yes. Not all of it is though, in particular a lot of the recommender code, which also has a significant non-distributed presence.

I don't think you can run Hadoop on GAE? Or at least I have not heard that you can, nor tried. I have personally run it on EC2. The book has a few pages on running Hadoop jobs on EC2; it's generally quite straightforward if you understand what's going on when you run it locally.
 
Ranch Hand
Posts: 63
  • Mark post as helpful
  • send pies
    Number of slices to send:
    Optional 'thank-you' note:
  • Quote
  • Report post to moderator
Most of mahout algorithms can be run on a in memory mode...
You need not have Map Reduce, however Map Reduce is required to run large datasets
 
Maybe he went home and went to bed. And took this tiny ad with him:
Garden Master Course kickstarter
https://coderanch.com/t/754577/Garden-Master-kickstarter
reply
    Bookmark Topic Watch Topic
  • New Topic