Usage Question or Issue? Stupid User error?

Products

• Mainframe Application Tuner

Issue/Introduction

When attempting to use the AA function (Analyze Action) on a running job, got a data set 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 is not correct or am I trying to do something the product does not do?

Environment

Release:
Component: MATUNE

Resolution

As we expected, the product is working as designed.

The data set is open for the MAT server to update. It belongs to the 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 MAT is doing is echoing messages generated by z/OS data set management based on the OPEN and normal locking for concurrent update.