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MapReduce >> mail # user >> new join algorithm using mapreduce


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new join algorithm using mapreduce
I am writing new join algorithm using hadoop
and want to do multi way join in single mapreduce job
map --> processes all dataset
reduce-->  join of all dataset
                + aggregate operation

second mapreduce job

will collect result from multple reducer files of first job

I am pretty clear about map phase but dnt have idea how to process
all dataset in single reduce.

So how i should proceed and
do i need to modify code of mapreduce
Thanks

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Thanx and Regards*
* Vikas Jadhav*
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Gauthier, Alexander 2013-01-19, 19:59
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