Hi sjarvie,   The next step with an error like this is to look at the logs for the container that's failing.  If you're running a MapReduce job (i.e. not distributed shell), you should be able to find these in the JobHistoryServer.  It will display a list of jobs and you can go into a job and navigate to the application master logs.  If you experience errors when trying to access these logs, make sure that yarn.log-aggregation-enable is set to true.   -Sandy ... View more