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PI90551: WHERE AN OBJECT HAS NO OTHER ASSOCIATED OBJECT, DCM RECEIVE WILLSET MODIFY_TIME TO EPOCH ZERO

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APAR status

  • Closed as program error.

Error description

  • Prerequisites
    
    1. Synergy 7.2.1 (can be created with 7.2.1.3)
    2. Three DCM enabled databases. For example - DB_1, DB_2, DB_3
    
    
    Steps to reproduce:
    
    1. Create an object which does not have any other associated
    objects. For example a Change CR with no associated attachment
    or task in DB_1.
    
    2. Create a transfer set to include this CR and transfer it from
    DB_1 to DB_2.
    
    3. In DB_2, query for the newly arrived CR and inspect its
    modify_time.
    
    
    Expected Results:
    
    modify_time should be the modify_time it was in DB_1.
    
    
    Actual Results:
    
    modify_time is set to the timezone equivalent of "Jan 1, 1970,
    00:00" or Epoch Zero.
    
    
    Impact:
    
    If CRs are updated in DB_2 and transferred back to DB_1, there
    is no impact as the modify_time is then updated.
    
    However, if DB_2 is used as hub to transfer objects between DB_1
    and DB_3 but not accessed by users, there can be an impact as
    follows:
    
    a. DB_2 transfers the CR to DB_3.
    b. DB_3 has the modify_time set to EPOCH Zero.
    c. A user then makes a change to the CR thus updating the
    modify_time.
    d. Thereafter, the CR updates are transferred back to DB_2 and
    then to DB_1.
    e. Next, Step C is repeated, and the CR updates are successfully
    transferred back to DB_2.
    
    f. Generating the transfer set on DB_2 to transfer to DB_1 will
    fail because the last_generate time is after the modify_time of
    EPOCH Zero. Therefore no other updates are transferred to DB_1.
    
    This defect was previously logged as APAR PI49249:
    http://www-01.ibm.com/support/docview.wss?uid=swg1PI49249
    and reintroduced in Rational Synergy 7.2.1.6
    

Local fix

Problem summary

  • ****************************************************************
    * USERS AFFECTED:                                              *
    * DCM users                                                    *
    ****************************************************************
    * PROBLEM DESCRIPTION:                                         *
    * WHERE AN OBJECT HAS NO OTHER ASSOCIATED OBJECT, DCM RECEIVE  *
    * WILL SET MODIFY_TIME TO EPOCH ZERO                           *
    ****************************************************************
    * RECOMMENDATION:                                              *
    ****************************************************************
    

Problem conclusion

  • Fixed in Synergy 7.2.1.6 ifix001.
    

Temporary fix

Comments

APAR Information

  • APAR number

    PI90551

  • Reported component name

    TLOGIC SYNERGY

  • Reported component ID

    5724V66SN

  • Reported release

    721

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2017-11-22

  • Closed date

    2018-01-03

  • Last modified date

    2018-01-03

  • 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

    TLOGIC SYNERGY

  • Fixed component ID

    5724V66SN

Applicable component levels

  • R721 PSY

       UP

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Document Information

Modified date:
18 October 2021