PM78781: QREPLICATION OLDEST_TRANS VALUE SOMETIMES HAS INCORRECT VALUE.

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APAR status

  • Closed as program error.

Error description

  • Qreplication sometimes stores wrong value into Oldest_Trans
    column in the applymon table.
    

Local fix

Problem summary

  • A heartbeat message might contain a current log time of 0 if the
    heartbeat interval expires before the logreader has published
    the first transaction or hit end of log.
    

Problem conclusion

  • If Q Apply receives 0, it will store the MQ put time as
    OLDEST_TRANS to prevent the value going backwards.  However the
    MQ put time may be higher than some transactions yet to be
    published.
    By suspending heartbeat messages until an appropriate log
    time can be sent, this ensures OLDEST_TRANS is always accurate.
    

Temporary fix

Comments

  • fix is contained in PTF UK80762 (APAR= PM66551)
    defect wsdbu01058557
    

APAR Information

  • APAR number

    PM78781

  • Reported component name

    WS REPLICATION

  • Reported component ID

    5655L8800

  • Reported release

    910

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2012-12-07

  • Closed date

    2012-12-07

  • Last modified date

    2012-12-27

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

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

    PM78783

Modules/Macros

  • ASN
    

Fix information

  • Fixed component name

    WS REPLICATION

  • Fixed component ID

    5655L8800

Applicable component levels

  • R910 PSY

       UP



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Document information


More support for:

InfoSphere Replication Server

Software version:

910

Reference #:

PM78781

Modified date:

2012-12-27

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