CACB120E CACB0120E Both STREAMNAME system log stream stream_name and CACLOG DD are not available.

Explanation
The data server cannot capture diagnostic trace
messages because the log stream that is defined in the STREAMNAME
parameter is not available and no CACLOG DD dataset is available.
The Log service will end.

stream_name

Stream name used for the diagnostic log.

User response
Specify a diagnostic trace log name in
the STREAMNAME configuration parameter or add a CACLOG DD that is
available for the Log service's use.