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MapReduce >> mail # user >> stop generating these "part-XXXX" empty files when using MultipleOutputs in mapreduce job


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stop generating these "part-XXXX" empty files when using MultipleOutputs in mapreduce job
I use MultipleOutputs so the output data are no longer stored in files "part-XXX". But they are still generated (though empty). Is it possible to stop generating these files when running MR job? (BTW, my MR job only has mapper). Thanks

Senqiang
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