Can you pastebin and provide your specific mapper userlog (syslogs/stderr/stdout)?
On Thu, Apr 19, 2012 at 6:05 PM, Sudip Sinha <sudipsinha.ba...@gmail.com> wrote: > Hi, > > I'm reposting this as I've not received any reply to my earlier post on the > same issue. > > I've read that the combiner only works if it is specified AND the sort > memory buffer overflows in the mapper. > http://mail-archives.apache.org/mod_mbox/hadoop-hdfs-user/201107.mbox/%3c374d8f3f-b8b1-499f-bedb-bfee32190...@hortonworks.com%3E > > But when I run a Hadoop streaming job in R using RHadoop, the combiner > always runs when specified. This is on a very small dataset. > > Is this the desired behaviour? > > More on this: https://github.com/RevolutionAnalytics/RHadoop/issues/70 > > Thanks, > Sudip Sinha -- Harsh J
