Usage Question or Issue? Stupid User error?

Document ID : KB000122935
Last Modified Date : 12/12/2018
Show Technical Document Details
Issue:
When I attempt to use the AA function (Analyze Action) on a running job I receive dataset contention errors with the MAT STC:

DATA SET REMOTE.TDT169.TUNIVP1.D2018345.T1126499 ALREADY IN USE, TRY LATER+,
DATA SET IS ALLOCATED TO ANOTHER JOB OR USER,
IEFA110I DATA SET CONTENTION,
DATA SET REMOTE.TDT169.TUNIVP1.D2018345.T1126499 IN USE BY,
SYSNAME JOBNAME ASID,
DALD MATUNER 00A4,

Is this an indication of a setting that isn't correct or am I trying to do something the product doesn't do?
Resolution:
As we expected, the product is working as designed.

The dataset is open for the CA MAT server to update. It belongs to the CA MAT server as long as the measurement is running and until the measurement ends and finishes flushing all of the measurement data from it's buffers to the monitor file.

All CA MAT is doing is echoing messages generated by z/OS dataset management based on the OPEN and normal locking for concurrent update.