MUDD parameter

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Max UDD lines


Default value
Parameter type
Where set
By any user
Related products
Model 204 V2.1 or earlier


The maximum number of output lines (shown by the UDD statistic) written to a directed output (USE) data set per request.

At certain points during loop processing of a request, the elapsed number of output lines written to a directed output data set for the request is compared to the value of MUDD. If the elapsed number is greater, the user is informed that the request is long. The user can either continue or cancel the request.

In batch jobs, in application subsystems, or if the value of the PROMPT parameter includes the X'10' option, this interaction with the user does not happen and the request is canceled.

The maximum MUDD value is X'FFFFFFFE' (4,294,967,294). If MUDD is set to -1, there is no limit to the number of output lines that can be written to a USE data set.