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Yeshan, Which version of hadoop are you using? Officially, combiner for non-java command was added in 0.21 https://issues.apache.org/jira/browse/HADOOP-4842 but I¹d bet some of those 0.20s have this backported. Koji On 1/18/11 12:06 AM, "Harsh J" <[email protected]> wrote: > Right now, the Combiner has to be a Java Class. A command is > unacceptable, as noted here: > http://wiki.apache.org/hadoop/HadoopStreaming > > On Tue, Jan 18, 2011 at 1:30 PM, xieyeshan <[email protected]> > wrote: >> hi,all >> >> I want to use combiner in hadoop streaming, but combiner is not the same >> as mapper or reducer in streaming.How could I do this? >> Thanks! >> >> >> Yours, >> >> Yeshan Xie >> >> 2011-01-18 >> >> >> >> xieyeshan >> > > > > -- > Harsh J > www.harshj.com >
