]
Sent: Monday, March 24, 2008 1:36 PM
To: core-user@hadoop.apache.org
Subject: MapReduce with related data from disparate files
I have a cluster of 5 machines up and accepting jobs, and I'm trying to
work
out how to design my first MapReduce task for the data I have.
So, I wonder if anyone
Map-reduce excels at gluing together files like this.
The map phase selects the key and makes sure that you have some way of
telling what the source of the record is.
The reduce phase takes all of the records with the same key and glues them
together. It can do your processing, but it is also
@hadoop.apache.org
Subject: MapReduce with related data from disparate files
I have a cluster of 5 machines up and accepting jobs, and I'm trying to
work
out how to design my first MapReduce task for the data I have.
So, I wonder if anyone has any experience with the sort of problem I'm
trying
