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From Prem Yadav <>
Subject Re: Hive huge 'startup time'
Date Fri, 18 Jul 2014 13:52:56 GMT
may be you can post your partition structure and the query..Over
partitioning data is one of the reasons it happens.

On Fri, Jul 18, 2014 at 2:36 PM, diogo <> wrote:

> This is probably a simple question, but I'm noticing that for queries that
> run on 1+TB of data, it can take Hive up to 30 minutes to actually start
> the first map-reduce stage. What is it doing? I imagine it's gathering
> information about the data somehow, this 'startup' time is clearly a
> function of the amount of data I'm trying to process.
> Cheers,

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