number of message queue service aa...aa transactions in execution has exceeded the upper limit; cannot execute the requested transaction.

aa...aa: Message queue server name

S: Performs either of the following:

1. If the error occurs in a write to the message queue file, the system discards the message.
2. If the error occurs in a read from the message queue file, the system reschedules the event as an error event.

Countermeasure: Terminate MCF normally. Then, increase the maximum number of concurrently executed transactions in the message queue service definition, and then start MCF.