Learn about S322 abends in mainframe programming from an expert. Understand the common causes, including CPU time limits and looping programs. Get a clear, detailed explanation.
Table of Contents
Question
What is abend s322
A. Job cancelled by the operator
B. The system has run out on the CPU time and the job is being cancelled
C. Looping program problem
D. Both B and C
Answer
D. Both B and C
Explanation
An S322 abend in mainframe programming indicates that a job has been cancelled due to exceeding the CPU time limit and/or having a looping program problem.
When a job consumes more CPU time than the maximum amount allocated to it by the operating system, it will be terminated with an S322 abend. This prevents runaway jobs from monopolizing system resources. The CPU time limit is set by the TIME parameter in the job’s JCL.
Additionally, an S322 abend can occur if a program enters an infinite loop, continually executing without making progress or reaching a normal end. Looping problems are often caused by faulty program logic, such as an incorrect loop control variable, or missing exit conditions.
In summary, an S322 abend is triggered by either the system cancelling a job for using too much CPU time, or the job cancelling itself due to a looping program. Both of these situations, individually or in combination, will produce an S322 abend.
Therefore, the correct answer is option D: Both B and C. An S322 abend means the job exceeded the CPU time limit and/or had a looping program problem.
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