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PI28582: SYNCREPLICA REPLAY OF "MKELEM" OPERATION MAY MAKE TWO "CREATE ELEMENT" EVENTS IN THE VOB DATABASE

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APAR status

  • Closed as program error.

Error description

  • In a ClearCase VOB with ACLs enabled, certain other
    circumstances (as yet unclear) may result in
    the replay of a mkelem operation getting annotated
        "Warning: Defaulting protection to rolemap of parent
    directory in importing replica "replica-name".
    
    This annotation gets added to the comments of the oplog entry,
    and also to the element itself.
    The event type / operation of the event is "create" / "mkelem"
    So that an "lshistory" of the element shows
    %cleartool lshist -eventid
    oid:20203257.337a11e3.9cd8.6c:3b:e5:b4:5d:f8
    ...
    event 536882352:
    2013-10-12     user      create version
    "20203257.337a11e3.9cd8.6c:3b:e5:b4:5d:f8@@/main/0"
    event 536882351:
    2013-10-12     user      create branch
    "20203257.337a11e3.9cd8.6c:3b:e5:b4:5d:f8@@/main"
    event 536882350:
    2013-10-12     user      create file element
    "20203257.337a11e3.9cd8.6c:3b:e5:b4:5d:f8@@"
      "Warning: Defaulting protection to rolemap of parent directory
    in importing replica "replica-name".
       Initial version"
    event 536882349:
    2013-10-12     user      create file element
    "20203257.337a11e3.9cd8.6c:3b:e5:b4:5d:f8@@"
      "Initial version"
    
    
    
    This double "create file element" is benign for ClearCase run
    time operations,
       but causes problems during reformatvob and mkreplica
    

Local fix

  • This double "create file element" is benign for ClearCase run
    time operations,
       but causes problems during reformatvob and mkreplica
    
    To clean this bad event from the database, allowing reformatvob,
    raise a PMR with Rational lient Support.
    

Problem summary

  • ****************************************************************
    * USERS AFFECTED:                                              *
    * Users of ClearCase MultiSite.                                *
    ****************************************************************
    * PROBLEM DESCRIPTION:                                         *
    * In a ClearCase nonpreserving replica with ACLs enabled,      *
    * syncreplica replay of a mkelem oplog may generate a second   *
    * "create file element" event in the database, which can cause *
    * failures in reformatvob and mkreplica -import.               *
    ****************************************************************
    * RECOMMENDATION:                                              *
    ****************************************************************
    

Problem conclusion

  • A fix is available in ClearCase versions 8.0.1.14 and 9.0.0.4
    

Temporary fix

Comments

APAR Information

  • APAR number

    PI28582

  • Reported component name

    CLEARCASE WIN

  • Reported component ID

    5724G2900

  • Reported release

    801

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2014-10-28

  • Closed date

    2017-03-16

  • Last modified date

    2017-03-16

  • 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

    CLEARCASE WIN

  • Fixed component ID

    5724G2900

Applicable component levels

[{"Business Unit":{"code":"BU053","label":"Cloud & Data Platform"},"Product":{"code":"SSSH27","label":"Rational ClearCase"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"801","Line of Business":{"code":"LOB36","label":"IBM Automation"}}]

Document Information

Modified date:
29 June 2020