Oh, of course it will. From what I know about using this it just
allows you to launch 1 job instead of several. Every time a Map/Reduce
pair finishes it will dump to the HDFS (or whatever you're using)
- Grant
Quoting abc xyz <[email protected]>:
one option can be to use multiple chained jobs using JobControl object.
But can anyone tell whether in this case the output of first job be
written to
the disk? Actually I want to minimize access to the disk.
Cheers
________________________________
From: Fariha Atta <[email protected]>
To: [email protected]
Sent: Fri, July 2, 2010 8:45:12 AM
Subject: Re: Chaining Map-Reduce
But it provides chaining like Map+ | Reduce | Map* i.e. we can use only one
reducer.
On Fri, Jul 2, 2010 at 8:37 AM, Venkatesh S <[email protected]> wrote:
You could use ChainMapper and ChainReducer API in hadoop.
Grant Mackey
UCF Research Assistant
Engineering III
Rm 238 Cubicle 1
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