DFS2281I UPPER THRESHOLD REACHED FOR xxxxx.
Explanation
The device relative record number (DRRN) in-use-count for either LGMSG or SHMSG, as indicated by xxxxx, was greater than the high threshold count.
System action
All messages being retrieved from Shared Queues will wait until the low threshold value is obtained.
Programmer response
Determine why the DRRN count was so high. Problem areas could include the number of messages queued to SMTO or BMP with a high transaction count.