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Hadoop >> mail # user >> How to Set No of Mappers in program


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Re: How to Set No of Mappers in program
For my 5000 recorded file .. How many mappers will be running?

And is there a way to know how my files are splited?
On Wed, Nov 13, 2013 at 9:51 AM, unmesha sreeveni <[EMAIL PROTECTED]>wrote:

> How to set the no of mappers?
>
> I am running a job with input file of 5000 records.but actually it is a
> small file for hadoop..but i need to know whether it can be exceuted faster.
>
> when i tried to run my job it took nearly 30 min to complete my job...
> why so?
>
> If i set my mappers to a lower count whether any reflection happens to my
> job performance?
>
> --
> *Thanks & Regards*
>
> Unmesha Sreeveni U.B
>
> *Junior Developer*
>
>
>
--
*Thanks & Regards*

Unmesha Sreeveni U.B

*Junior Developer*
NEW: Monitor These Apps!
elasticsearch, apache solr, apache hbase, hadoop, redis, casssandra, amazon cloudwatch, mysql, memcached, apache kafka, apache zookeeper, apache storm, ubuntu, centOS, red hat, debian, puppet labs, java, senseiDB