DFS4994I nnnnnn MESSAGE(S) MOVED TO THE type COLD QUEUE DURING IMS/CQS RESYNC

Explanation

During IMS/CQS resync, IMS attempts to resolve the status of messages that CQS has moved to the cold queue. In some cases, the status cannot be resolved because there is not enough information on the IMS and CQS logs. When this happens, IMS leaves the messages on the cold queue. This can occur when:
  • IMS is cold started (messages are in COLD status), or
  • The double-failure situation occurs where both the structure fails (and has to be rebuilt from the log) and CQS also fails (messages are in UNKNOWN status).
IMS issues the DFS4994I message when one or more messages is in either "COLD" or "UNKNOWN" status and is left on the CQS cold queue.
In the message text:
nnnnnn
A six digit decimal number indicating the number of messages that were moved to the cold queue.
type
The IMS structure type - either MSGQ for the shared message queue structure, or EMHQ for the shared expedited message handler queue structure.

System action

IMS continues processing.

System programmer response

Messages on the CQS cold queue may or may not have been processed by the prior instance of IMS. You can use a queue management tool (for example, the IBM® IMS Queue Control Facility for z/OS® or equivalent) to examine the messages on the cold queue and either delete or unlock them as appropriate.

Module

DFSSQ030, DBFSQ030