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From Dean Wampler <>
Subject Re: Query is taking long time to process and return the result
Date Mon, 29 Oct 2012 15:41:46 GMT
It's impossible to answer such a vague, open-ended question without
specifics. What's the query, for example? How is the data organized (e.g.,
is it partitioned)? What are the cluster characteristics?

On Mon, Oct 29, 2012 at 10:20 AM, shashwat shriparv <> wrote:

> I am trying to run hive query on huge amount of data(almost in half of
> petabyte), and these query running map reduce internally. it takes very
> long time to generate the data set(map reduce to complete) what
> optimization mechanism for hive and Hadoop i can use to make these query
> faster, one more important question i have does the amount of disk
> available for map reduce or in /tmp directory is important for faster map
> reduce?
> --
> ∞
> Shashwat Shriparv

*Dean Wampler, Ph.D.*

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