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ORA-01866 reported on enqueue and ORA-00600: [KWQITNMPTME:WAIT/DONE/EXP] reported by the Queue Monitor processes when enqueing into a TRANSACTIONAL queue (Doc ID 1053752.1)

Last updated on AUGUST 30, 2021

Applies to:

Oracle Database Cloud Schema Service - Version N/A and later
Gen 1 Exadata Cloud at Customer (Oracle Exadata Database Cloud Machine) - Version N/A and later
Oracle Database Exadata Express Cloud Service - Version N/A and later
Oracle Cloud Infrastructure - Database Service - Version N/A and later
Oracle Database Backup Service - Version N/A and later
Information in this document applies to any platform.


Messages are being enqueued into a DBMS_AQADM.TRANSACTIONAL queue table either via propagation or a standalone enqueue session.

The groups of messages are enqueued with the message property delay set.

A variety of error messages may be reported or symptoms arise:

  1. On enqueue ORA-01866: the datetime class is invalid is reported. This error does not prevent the messages from being enqueued.
  2. After the messages have been enqueue the qmon worker processes can report ORA-00600: [kwqitnmptme:wait/done/exp], [0]. This error can be worked around using the manual update method mentioned in internal Note 361089.1.
  3. Messages can be dequeued out of order.


Databases had been upgraded from 9.2 to 10.2.


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