Hi Try setting the parameter mapred.reduce.tasks
hadoop jar hadoop-0.20.2-examples.jar wordcount -D mapred.reduce.tasks=4 <Input> <Output> Thanks. Sumit ________________________________ From: Hoot Thompson <h...@ptpnow.com> To: hadoop-u...@lucene.apache.org Sent: Tuesday, 29 November 2011 8:03 PM Subject: Multiple reducers I'm trying to prove that my cluster will in fact support multiple reducers, the wordcount example doesn't seem to spawn more that one (1). Is that correct? Is there a sure fire way to prove my cluster is configured correctly in terms of launching the maximum (say two per node) number of mappers and reducers? Thanks!
