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Job Tmp Data: Is it really writing locally?

Question asked by mandoskippy on Nov 25, 2012
Latest reply on Nov 25, 2012 by Ted Dunning
When I watch a big job run on my cluster, I expect the data being written to /tmp/mapr-hadoop to be more. Instead I see lots of reads and lots of writes to my mapr disks rather than my local disk.  I NEVER see more data than say a couple of MB written to tmp, even running terasort.  Something seems off here when if you consider MapR wants us to 10GB + free on on our /tmp.  Is something not writing correctly locally? What settings control this? I know I am going on gut here, but something feels off.

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