DFS4157W The number of queued APPC requests reached the maximum limit. All input from APPC clients is stopped.
Explanation
The number of APPC/IMS conversation requests that are queued in 64-bit storage waiting to be accepted by IMS for processing reached the limit that is currently in effect.
System action
IMS issues a request to z/OS® to stop further input from APPC clients.
Operator response
No action is required.
Determine if either IMS is having a problem processing APPC/IMS transaction requests or if there is a sudden flood of incoming APPC/IMS transactions.
If both IMS processing performance and the number of incoming APPC/IMS requests are within acceptable ranges, consider increasing the APPC/IMS limits that are currently in effect. The APPC/IMS limits are specified on the APPCMAXC parameter in the DFSDCxxx member of the IMS PROCLIB data set.