Yes, User submitting a job needs to have an account on all the nodes. Sent from my iPhone
On Jun 7, 2012, at 6:20 AM, Koert Kuipers <ko...@tresata.com> wrote: > with kerberos enabled a mapreduce job "runs as" the user that submitted it. > does this mean the user that submitted the job needs to have linux accounts > on all machines on the cluster? > > how does mapreduce do this (run jobs as the user)? do the tasktrackers use > secure impersonation to run-as the user? > > thanks! koert
