hadoop-user mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Austin Chungath <austi...@gmail.com>
Subject Need help optimizing reducer
Date Mon, 04 Mar 2013 19:57:31 GMT
Hi all,

I have 1 reducer and I have around 600 thousand unique keys coming to it.
The total data is only around 30 mb.
My logic doesn't allow me to have more than 1 reducer.
It's taking too long to complete, around 2 hours. (till 66% it's fast then
it slows down/ I don't really think it has started doing anything till 66%
but then why does it show like that?).
Are there any job execution parameters that can help improve reducer
Any suggestions to improve things when we have to live with just one


View raw message