Hi Arko,
What is value of 'no_of_reduce_tasks'?
If no of reduce tasks are 0, then the map task will directly write map output
into the Job output path.
Thanks
Devaraj
From: Arko Provo Mukherjee [arkoprovomukher...@gmail.com]
Sent: Tuesday, April
Oh no! I just figured it out :-/
It's actually dying on the Combine step, with an error about the
Reduce class (because the WordCount example uses the Reduce class as
both the reducer and combiner).
This makes sense now.
Sorry for the silly question, and thanks for the help!
Bryan
On Mon, Apr
Hi Bryan
Can you post in the error stack trace?
Regards
Bejoy KS
On Tue, Apr 17, 2012 at 8:41 AM, Bryan Yeung wrote:
> Hello Bejoy,
>
> Thanks for your reply.
>
> Isn't that exactly what I've done with my modifications to
> WordCount.java? Could you have a look at the diff I supplied and/
Hello Bejoy,
Thanks for your reply.
Isn't that exactly what I've done with my modifications to
WordCount.java? Could you have a look at the diff I supplied and/or
the WordCount.java file I attached and tell me how I've deviated from
what you say below?
Thanks,
Bryan
On Mon, Apr 16, 2012 at 11
HI Bryan
You can set different key and value types with the following steps
- ensure that the map output key value type is the reducer input key value type
- specify it on your Driver Class as
//set map output key value types
job.setMapOutputKeyClass(theClass)
job.setMapOutputValueClass(the
Hello Everyone,
I'm relatively new to hadoop mapreduce and I'm trying to get this
simple modification to the WordCount example to work.
I'm using hadoop-1.0.2, and I've included both a convenient diff and
also attached my new WordCount.java file.
The thing I am trying to achieve is to have the v
