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IT25669: RECORD TIME FOR SUBSCRIPTIONS NOW PASSED FROM MASTER IN METADATA TO SLAVES TO DETERMINE EXPIRATION TIME.

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You can track all active APARs for this component.

 

APAR status

  • Closed as program error.

Error description

  • Errors AMQ9511 and AMQ9448 are logged along with FFST
    regarding ProbeID: RM220005 and Probe Type: MSGAMQ9511
    given by one or more slave repmans due to inconsistencies
    between CPUs regarding subscriptions in number and
    referenced object as well as expiration time.
    When multiple slaves are affected, in consequence the
    problem described in IT24388 may occur.
    This is a generic description of a multi root cause error
    scenario, please also check APARs about other problems
    identified: IT25665, IT25666, IT25669, IT25671.
    This APAR is about inconsistent expiration times of
    subscriptions and other cluster cache entries,
    varying between CPUs.
    

Local fix

  • N/A
    

Problem summary

  • When object or subscription records were initially
    created or refreshed, the expiration time was calculated
    in slaves based on current time of day, which always differs
    from time used by master repository manager. As a result
    subscriptions or entries were not dropped during maintenance,
    causing error described above due to inconsistencies in
    maintenance process.
    

Problem conclusion

  • Code was changed to always record time used by master
    in metadata to be forwarded along with the request to slaves.
    Recorded time now is used instead of current time of day to
    determine new expiration times in slave maintenance process.
    

Temporary fix

Comments

APAR Information

  • APAR number

    IT25669

  • 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

    2018-07-12

  • Closed date

    2018-07-13

  • Last modified date

    2018-07-13

  • 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

  • R531 PSY

       UP

[{"Line of Business":{"code":"LOB36","label":"IBM Automation"},"Business Unit":{"code":"BU053","label":"Cloud \u0026 Data Platform"},"Product":{"code":"SSFKSJ","label":"WebSphere MQ"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"5.3.1"}]

Document Information

Modified date:
27 September 2021