TAU0171E

TAU0171E  hh:mm:ss.ttt All subtasks busy. Request not processed.
Explanation:
The LISTENER task received a message from the client but all worker tasks are busy and the server was configured with NOFTASK=M.
Issued by:
TAURIPLI
System administrator response:
If this message occurs in a scheduler, increase the number of worker tasks (configuration variable NUMTCB). If this message occurs in a user server with an ISPF environment, check why the worker task is busy. This message may appear to indicate a possible loop.