A JCL error can be a syntactical or an allocation error. ... and when an error occurs, job is not taken for processing. You can browse ... Return Code Reference.
Common Errors There are two basic types of errors that can lead to job failure. They are: • •
JCL ERROR JOB ABEND
JCL errors A JCL error can be a syntactical or an allocation error. Both these errors are detected by JES and when an error occurs, job is not taken for processing. You can browse your job's outlist to know the errors in detail for all types of errors. The outlist is available in one of the SPOOL volumes and written in WORK volume when you want to browse/edit. To do so, specify MSGCLASS=X, where X is the hold class. Common JCL Errors Some of the common errors, the reasons, and their solutions are discussed below.
1. JOB JOBNAME(####) EXPRESS CANCELLED BY INPUT SERVICE Reason: Error occurred in job Solution: Check the jobcard for syntax and resubmit the job. 2. JOBCARD INVALID Reason: Job statement ended with comma, but continuation line is missing or coded after 16th column. Solution: Rectify the above-mentioned error and resubmit the job. 3. JOB JOBNAME(####) JOB REJECTED Reason: Time parameter is missing in the job. Solution: Check the jobcard for missing TIME parameter or any other parameter, which has to be coded. Resubmit the job. 4. JOB JOBNAME(####) FAILED BY INTERPRETER Reason: Possible reasons are as follows: a) Undefined operation field b) Operation filed does not terminate with a comma/blank c) Job has no job steps d) Incorrect use of apostrophes in the parameter field e) Extra blank is coded between parameters of operand fields
Solution: Check for the above errors and resubmit the job. 5. JOB JOBNAME(####) FAILED BY INITIATOR JOB JOBNAME,STEP=STEPNAME,PROC=PROCNAME Reason: The required parameters are not passed or one or some of the specified parameters are incorrect. Solution: Include all the necessary parameters and resubmit the job. 6. JOB JOBNAME(####) JOB FAILED - JCL ERROR Reason: Dataset not found Solution: Check for the existence of the dataset or check the dataset name and resubmit the job.
JOB ABEND Error An error can be an abend. When a job abends, termination messages are written to the console and to message log regardless of any MSGLEVEL parameter coding in the JOB statement. An ABEND can be the result of: • • • • •
A program logic error Execution time exceeds the amount coded in the time parameter A program is not found in the coded library A hardware or system failure Space constraints after the program started executing
DD Statement Errors Mostly errors in DD statement are common JCL logic errors. Some of these errors are as follows: • • •
If a DD statement is omitted for a particular dataset, which is referred by the application program, the OS is unable to locate it. If a DD statement is coded twice, the OS ignores the first occurrence and assumes the second to be the intended statement If two similar DD statements describe the same dataset, both will be allocated. The application program will however, only use the second description.
Considerable time is wasted, as these types of errors are not recognized by the system until after job processing has started. Return Code Reference All utilities communicate processing results to you via the return code, which is a 4-digit number that you can test in subsequent job steps with the COND parameter. Following are some of the return codes used by each IBM utility.
Successful completion Warning error; probable successful completion User requested processing of dataset labels only Unrecoverable error; step terminates User routine passed 0016 (rarely used) Successful execution Problem in a noncritical function; not usually fatal Error in requested function; some aspect bypassed Serious logical error; function abandoned Severe error; IDCAMS command processing terminated Successful execution (Not used) (Not used) (Not used) I/O error or out of sequence error; step terminated //SYSOUT DDname or message DDname missing
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