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From: Christian Kunz <ckunz@yahoo-inc.com>
To: "common-user@hadoop.apache.org" <common-user@hadoop.apache.org>
Date: Wed, 2 Feb 2011 13:23:34 -0800
Subject: Re: IdentityReducer is called instead of my own
Thread-Topic: IdentityReducer is called instead of my own
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Without seeing the source code of the reduce method of  the InvIndexReduce =
class
my best guess would be that the signature is incorrect. I saw this happen w=
hen migrating from old to new api:

protected void reduce(KEYIN key, Iterable<VALUEIN> values, Context context)

(Iterable, not Iterator as in the old api)

-Christian


On Feb 2, 2011, at 12:22 PM, Marco Didonna wrote:

> Hello everybody,
> I am experiencing a weird issue: I have written a small hadoop program
> and I am launching it using this https://gist.github.com/808297
> JobDriver. Strangely InvIndexReducer is never invoked and the default
> reducer kicks in. I really cannot understand where the problem could be:
> as you can see I am using the new version of the api, (hadoop >=3D 0.20).
>=20
> Any help is appreciated
>=20
> MD
>=20