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IC94647: WEBSPHERE MQ FOR HP NONSTOP SERVER DOES NOT DELETE DYNAMIC QUEUES ON CLOSE IF AN MQGMO_SET_SIGNAL MQGET GMO IS OUTSTANDING.

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APAR status

  • Closed as program error.

Error description

  • On HP Nonstop, when using MQGMO_SET_SIGNAL with WebSphere
    MQ dynamic queues, if the  MQCLOSE/MQCO_DELETE_PURGE
    operation is performed with an outstanding signal (
    that is, before a signal was received or it timed out)
    the queue is not deleted. If the MQGMO_SET_SIGNAL option
    is not used, the queues will be deleted as expected.
    

Local fix

  • Do not use MQGMO_SET_SIGNAL GMO when doing MQGETs on
    dynamic queues.
    

Problem summary

  • If an application opens a model queue and then posts an MQGET
    with MQGMO_SET_SIGNAL against it,  if the queue is closed with
    MQCO_DELETE or MQCO_DELETE_PURGE,  the following set of FDCs are
    produced.
    QS074001 from qslUnloadQueue
    QS072003 from qslHandleDelete
    QS164001 from qslMapHandle
    QS191000 from qslHandleClose
    KN070001 from kqiDeleteQPath
    This is a result of the object delete logic in the queue server
    not handling the case where there are outstanding waiters
    at the time an object is deleted
    

Problem conclusion

  • If tbe object being deleted is a dynamic queue, it is not an
    error to delete it with outstanding MQGET with MQGMO_SET_SIGNAL.
    The queue server object delete logic should cancel the waiter(s)
    and then delete the object.
    

Temporary fix

  • Terminate the application that originally posted the MQGET with
    MQGMO_SET_SIGNAL, then delete the orphaned object manually.
    

Comments

APAR Information

  • APAR number

    IC94647

  • Reported component name

    WEBS MQ NSS ITA

  • Reported component ID

    5724A3902

  • Reported release

    531

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2013-08-05

  • Closed date

    2013-08-16

  • Last modified date

    2013-08-16

  • APAR is sysrouted FROM one or more of the following:

  • APAR is sysrouted TO one or more of the following:

Fix information

  • Fixed component name

    WEBS MQ NSS ITA

  • Fixed component ID

    5724A3902

Applicable component levels

[{"Line of Business":{"code":"LOB36","label":"IBM Automation"},"Business Unit":{"code":"BU053","label":"Cloud & Data Platform"},"Product":{"code":"SSFKSJ","label":"WebSphere MQ"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"5.3.1"}]

Document Information

Modified date:
17 November 2020