LoaderSubmit the job toARNAfter execution, if at this timeLoaderIf the service is abnormal, this job executes line failed.

LoaderSubmit the job toYARAfter a small execution, if a certainMapperTask execution fails, can be automatically Try again.

LoaderIf the job fails to execute, garbage data will be generated, which needs to be cleared manually by the user.

LoderSubmit an assignment toYARAfter the job is executed, no other jobs can be submitted until the job is executed Industry.