You can check the log message when run your job script file on cmd.
It is very convenient to set the log in job view to output the record into a file or table.
Statistics table records details like begin Time, End Time which is generated by any job.
Logs table records the messages from Java Exception, tDie and/or tWarn (prerequisite: there must be an error in your job).
Flow Meter table records the number of rows processed in the defined flow(prerequisite: you have to use tFlowMeter in your job).