Learn the difference between CANCEL and FORCE commands for canceling executing jobs on the mainframe. Discover the correct command to use and understand its implications.
Table of Contents
Question
The command for cancellation of job that is executing
A. CANCEL JOBNAME
B. FORCE JOBNAME
C. Either A or B
D. None of the above
Answer
The correct answer to cancel a job that is currently executing on the mainframe is:
B. FORCE JOBNAME
Explanation
When a job is actively running on the mainframe, the CANCEL command is not sufficient to terminate it. The CANCEL command is used to cancel jobs that are in the input queue or are currently waiting to execute. However, once a job has started executing, the CANCEL command will not be effective.
To cancel a job that is already executing, you must use the FORCE command followed by the job name. The FORCE command is more powerful than CANCEL and can terminate a running job immediately. It will stop the job at its current point of execution, regardless of whether it has completed its processing or not.
It’s important to note that using the FORCE command can potentially lead to inconsistencies or data integrity issues, as the job is abruptly terminated without allowing it to complete its normal processing and cleanup tasks. Therefore, the FORCE command should be used with caution and only when absolutely necessary.
In summary, to cancel a job that is currently executing on the mainframe, you must use the FORCE command followed by the job name (FORCE JOBNAME). The CANCEL command is not applicable in this scenario, as it is only effective for jobs that have not yet started executing.
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