Unknown deploy mode '[deployMode]' for YarnYarnClusterManager — ExternalClusterManager for YARN
YarnClusterManager is the only currently known ExternalClusterManager in Spark. It creates a TaskScheduler and a SchedulerBackend for YARN.
createTaskScheduler method
createTaskScheduler creates a YarnClusterScheduler for cluster deploy mode and a YarnScheduler for client deploy mode.
It throws a SparkException for unknown deploy modes.
createSchedulerBackend method
createSchedulerBackend creates a YarnClusterSchedulerBackend for cluster deploy mode and a YarnClientSchedulerBackend for client deploy mode.
It throws a SparkException for unknown deploy modes.
Unknown deploy mode '[deployMode]' for Yarninitialize method
initialize simply initializes the input TaskSchedulerImpl.