hive-user mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From Mohammad Tariq <donta...@gmail.com>
Subject Re: Reduce phase hangs
Date Thu, 08 Nov 2012 10:43:02 GMT
Hello Robin,

        Look at the TaskTracker logs and see if you find anything
interesting there.

Regards,
    Mohammad Tariq



On Thu, Nov 8, 2012 at 4:03 PM, Robin Verlangen <robin@us2.nl> wrote:

> Hi there,
>
> It seems that some of my jobs hang in the reduce phase for a very long
> time (for example, days). Is there anything I could tweak on? The query is
> pretty simple, like:
>
> SELECT SUM(colA), to_date(colB) AS dt FROM table GROUP BY to_date(colB)
> ORDER BY dt ASC;
>
> Best regards,
>
> Robin Verlangen
> *Software engineer*
> *
> *
> W http://www.robinverlangen.nl
> E robin@us2.nl
>
> <http://goo.gl/Lt7BC>
>
> Disclaimer: The information contained in this message and attachments is
> intended solely for the attention and use of the named addressee and may be
> confidential. If you are not the intended recipient, you are reminded that
> the information remains the property of the sender. You must not use,
> disclose, distribute, copy, print or rely on this e-mail. If you have
> received this message in error, please contact the sender immediately and
> irrevocably delete this message and any copies.
>
>

Mime
View raw message