hive-user mailing list archives

Site index · List index
Message view « Date » · « Thread »
Top « Date » · « Thread »
From "kulkarni.swarnim@gmail.com" <kulkarni.swar...@gmail.com>
Subject Re: Need urgent help on hive query performance
Date Fri, 30 May 2014 22:34:26 GMT
I feel it's pretty hard to answer this without understanding the following:

1. What exactly are you trying to query? CSV? Avro? ....
2. Where is your data? HDFS? HBase? Local filesystem?
3. What version of hive are you using?
4. What is an example of a query that is slow? Some queries like joins and
stuff would be inherently slower than other simpler ones(though can be
optimized).

Thanks,

-- 
Swarnim


On Fri, May 30, 2014 at 5:32 PM, <shouvanik.haldar@accenture.com> wrote:

>  Can you please give a specific example or blog to refer to. I did not
> understand
>
>
>
> *From:* Ashish Garg [mailto:gargcreation1992@gmail.com]
> *Sent:* Friday, May 30, 2014 3:31 PM
> *To:* user@hive.apache.org
> *Subject:* Re: Need urgent help on hive query performance
>
>
>
> try partitioning the table and run the queries which are partition
> specific. Hope this helps.
>
> Thanks and Regards,
>
> Ashish Garg.
>
>
>
> On Fri, May 30, 2014 at 6:05 PM, <shouvanik.haldar@accenture.com> wrote:
>
> Hi,
>
>
>
> Does anybody  help urgently on optimizing hive query performance? I am
> looking more Hadoop tuning point of view. Currently, small amount of table
> takes much time to query?
>
>
>
> We are running EMR cluster with 1 MASTER node, 2 Core Nodes and  Task
> Nodes.
>
>
>
> Quick help is much appreciated.
>
>
>
> Thanks,
>
> Shouvanik
>
>
>  ------------------------------
>
>
> This message is for the designated recipient only and may contain
> privileged, proprietary, or otherwise confidential information. If you have
> received it in error, please notify the sender immediately and delete the
> original. Any other use of the e-mail by you is prohibited. Where allowed
> by local law, electronic communications with Accenture and its affiliates,
> including e-mail and instant messaging (including content), may be scanned
> by our systems for the purposes of information security and assessment of
> internal compliance with Accenture policy.
>
> ______________________________________________________________________________________
>
> www.accenture.com
>
>
>



-- 
Swarnim

Mime
View raw message