IBM Support

LO93044: PRIME SYNC THREAD EXCESSIVE LOOPING IN FINDCHILDDOCS

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APAR status

  • Closed as program error.

Error description

  • When processing prime sync for an Event with a large number of
    slave documents (repeating instances, or replication conflicts,
    or repair documents, ...), it may loop over all the slave
    documents multiple times.  In extreme cases (for example, 40000
    slave documents) this looping can take a very long time, since
    each slave document must be opened to determine what processing
    must be done on it.  You can see the looping by enabling FINEST
    logging for the user whose sync is taking longest, and looking
    in the NTSActivity log for messages with 'findChildDocs'.
    This fix changes the logic to minimize the looping, so each
    slave is opened only once, allowing the prime sync to complete
    much more quickly.
    

Local fix

  • You can ban the master Event document (by UNID) to prevent
    Traveler from starting the looping.
    

Problem summary

  • This is a rare scenario, was discovered by a customer that had
    40,000 exception documents to a ToDo entry.  This uncovered a
    performance issue processing that many documents.
    

Problem conclusion

  • The IBM Traveler server has been updated and now processes large
    events more efficiently.
    

Temporary fix

Comments

APAR Information

  • APAR number

    LO93044

  • Reported component name

    LOTUS NOTES TRA

  • Reported component ID

    5724E6204

  • Reported release

    901

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2017-09-14

  • Closed date

    2017-11-10

  • Last modified date

    2017-11-10

  • 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

    LOTUS NOTES TRA

  • Fixed component ID

    5724E6204

Applicable component levels

  • R901 PSY

       UP



Document information

More support for: IBM Traveler

Software version: 9.0.1

Reference #: LO93044

Modified date: 10 November 2017


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