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IT31028: Queue Manager reports the error RM702021 or RM883031 when all cluster full repositories are demoted

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APAR status

  • Closed as program error.

Error description

  • When all Full Repositories for a given cluster name are demoted,
    the partial repository queue managers began to generate failure
    data capture (FDC) records with one or both of the following
    errors:
    
    ******
    Probe Id     :- RM702021
    Component     :- rrmCheckSubsForQMgr
    Comment1     :- Missing subscription
    MQM Function Stack
    amqrrfma_main
    rrmMain
    rrmRepository
    rrmGetMsg
    rrmRunTimers
    rrmMaintenance
    rfxEnumCLQMGR
    rrmMaintainClqMgr
    rrmCheckSubsForQMgr
    xcsFFST
    ******
    
    ******
    Probe Id     :- RM883031
    Component     :- rrmCheckSubsForQueue
    MQM Function Stack
    amqrrfma_main
    rrmMain
    rrmRepository
    rrmGetMsg
    rrmRunTimers
    rrmMaintenance
    rfxEnumCLQ
    rrmMaintainClq
    rrmCheckSubsForQueue
    xcsFFST
    ******
    

Local fix

Problem summary

  • ****************************************************************
    USERS AFFECTED:
    Users who remove all Full Repositories for a given cluster name,
    by demoting them.
    
    
    Platforms affected:
    MultiPlatform
    
    ****************************************************************
    PROBLEM DESCRIPTION:
    In this case, the FDC records were written by code running on an
    internal schedule in the cluster repository manager process.
    The code that is checking that proper subscription records exist
    internally within the clustering component of the queue manager.
    
    The FDC is a "false positive".  That is, there is no problem.
    
    The reason the FDC appears is that no subscriptions exist for a
    particular queue or queue manager object, in the particular
    cluster for which there are now no Full Repositories.
    
    However, the fact there are no Full Repositories for that
    cluster means it is valid that there are no subscriptions.
    

Problem conclusion

  • The MQ code has been corrected so that the subscriptions
    validity check on a  Partial Repository is only performed for a
    cluster in which there is at least one Full Repository known.
    This then means that, in the scenario described in this APAR,
    the FDCs are no longer written.
    
    ---------------------------------------------------------------
    The fix is targeted for delivery in the following PTFs:
    
    Version    Maintenance Level
    v8.0       8.0.0.14
    v9.0 LTS   9.0.0.9
    v9.1 CD    9.1.5
    
    The latest available maintenance can be obtained from
    'WebSphere MQ Recommended Fixes'
    http://www-1.ibm.com/support/docview.wss?rs=171&uid=swg27006037
    
    If the maintenance level is not yet available information on
    its planned availability can be found in 'WebSphere MQ
    Planned Maintenance Release Dates'
    http://www-1.ibm.com/support/docview.wss?rs=171&uid=swg27006309
    ---------------------------------------------------------------
    

Temporary fix

Comments

APAR Information

  • APAR number

    IT31028

  • Reported component name

    IBM MQ BASE M/P

  • Reported component ID

    5724H7261

  • Reported release

    900

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2019-11-20

  • Closed date

    2020-01-13

  • Last modified date

    2020-01-13

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

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

    PH20952

Fix information

  • Fixed component name

    IBM MQ BASE M/P

  • Fixed component ID

    5724H7261

Applicable component levels

[{"Business Unit":{"code":"BU053","label":"Cloud & Data Platform"},"Product":{"code":"SSYHRD","label":"IBM MQ"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"9.0","Edition":"","Line of Business":{"code":"LOB36","label":"IBM Automation"}}]

Document Information

Modified date:
13 January 2020