DFS1989E OTMA input messages from member yyyyyyyy have reached the maximum active input message limit zzzz

Explanation

An OTMA message flood condition exists for member yyyyyyyy. The input messages have reached a default or client specified Transaction Instance Block (TIB) limit, indicated by zzzz.

System action

IMS OTMA rejects any new input messages from the member until free TIBs are available.

Programmer response

Determine the following:
  • Whether the input transactions are processed by dependent regions
  • Whether the remote transactions insert back to the I/O PCB
  • Whether the OTMA clients are flooding the IMS
You might need to control or stop the OTMA clients to prevent the flood conditions. Ensure that the IMS regions are started to run the OTMA transactions. You might need to contact the IMS system programmer for assistance. Also, you can use the /DISPLAY TMEMBER TPIPE command to display the input message counts.

Module

DFSYFD00