Unable to launch SimulatedApplicationMaster.

[dolcino-li]

Hi, I meet this issue when I try to run this DynoYarn.

From the ticket, https://issues.apache.org/jira/browse/YARN-8849. I suppose that DynoYarn will launch an UnmanagedAM to simulate the AM to send request to the DynoRM.

However, from the code in SimulatedAppSubmitter, yarnClient will submit the SimulatedApplicationMaster Space to DynoRM directly without UnmanagedAM settings. But DynoRM can't distribute a container for SimulatedApplicationMaster, since all nodemanagers in DynoYarn are simulated.