Home | About | Sematext search-lucene.com search-hadoop.com
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
 Search Hadoop and all its subprojects:

Switch to Threaded View
Hadoop >> mail # user >> How to configure multiple reduce jobs in hadoop 2.2.0


Copy link to this message
-
Re: How to configure multiple reduce jobs in hadoop 2.2.0
Yes, you need to manually set it. Please see the API at
http://hadoop.apache.org/docs/stable2/api/org/apache/hadoop/mapred/JobConf.html#setNumReduceTasks(int)

On Thu, Jan 16, 2014 at 12:45 PM, Ashish Jain <[EMAIL PROTECTED]> wrote:
> Dear All,
>
> I have a 3 node cluster and have a map reduce job running on it. I have 8
> data blocks spread across all the 3 nodes. While running map reduce job I
> could see 8 map tasks running however reduce job is only 1. Is there a way
> to configure multiple reduce jobs?
>
> --Ashish

--
Harsh J
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