DFS3971 UNABLE TO PROCESS FAST PATH DUE TO EMH SHORTAGE

Explanation
 IMS was unable to obtain an Expedited
Message Handling (EMH) buffer for the size requested to process the Fast Path
transaction.

System action
 IMS rejects the Fast Path transaction
and sends this message to the terminal user.

System programmer response
 Determine the current EMH buffer
usage. Stop or close terminals and sessions that currently have EMH
buffers but do not need them. This action frees EMH buffers for use
by terminals and sessions that require them.
The
next time you restart IMS, increase the EMH buffer pool
definitions for the buffer sizes needed.