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Subject: Re: Question related to Number of Mapper
From: Michael Segel <michael_segel@hotmail.com>
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 <CAHxBGfJhv+TLdMA+TLYV-mjvg6-bZ4Lo0e8EmkDXe6-nV0F1KA@mail.gmail.com>
Date: Wed, 7 Nov 2012 10:31:56 -0600
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To: user@hadoop.apache.org

0 Custer didn't run. He got surrounded and then massacred.  :-P (See =
Custer's last stand at Little Big Horn)=20

Ok... plain text files 100 files 2 blocks each would by default attempt =
to schedule 200 mappers.=20

Is this one of those online Cert questions?=20

On Nov 7, 2012, at 10:20 AM, Ramasubramanian Narayanan =
<ramasubramanian.narayanan@gmail.com> wrote:

> Hi,
>=20
> If a  Custer=92s HDFS block size is 64MB. You have a directory =
containing 100 plain text files, each of which Is 100MB in size. The =
InputFormat for your job is TextInputFormat. How many Mappers will run?
>=20
> regards,
> Rams
>=20
>=20
>=20