Hi all, I can successfully debug the MapReduce ApplicationMaster in standalone mode by launching the pi estimator example with this command:
hadoop jar hadoop-mapreduce-examples-3.0.0-SNAPSHOT.jar pi "-Dyarn.app.mapreduce.am.command-opts=-Xdebug -Xrunjdwp:transport=dt_socket,server=y,suspend=y,address=8000" 10 10 and then attaching a debugger to port 8000 using Eclipse. This doesn't work with the DistributedShell example, presumably because it's not configurable with yarn.app.mapreduce.am.command as it's not MapReduce. Looking in yarn-default.xml, I don't see an equivalent parameter. For learning purposes, how can I debug the DistributedShell example (and other AMs)? Thanks! Curtis
