The TP Message Log

The TP message log can be used for recovery and problem determination when an error occurs while a TP is processing. You can control the TP message log through parameters from the TP profile and from the APPC/MVS transaction scheduler parmlib member (ASCHPMxx). Table 1 shows the parameters used in the TP message log definition, where the parameters are specified, and where to find detailed information about coding values for these parameters.

Table 1. Parameters Used in TP Message Log Definition
Parameter	Where Specified	Coding Details in:
KEEP_MESSAGE_LOG	TP profile	Transaction Scheduler Section
MESSAGE_DATA_SET	TP profile	Transaction Scheduler Section
DATASET_STATUS	TP profile	Transaction Scheduler Section
MSGLIMIT	ASCHPMxx	z/OS MVS Initialization and Tuning Reference
MSGLEVEL	TP profile JCL or ASCHPMxx	z/OS MVS JCL Reference or z/OS MVS Initialization and Tuning Reference