PM03334: Remove the requirement for the session.dat file in all CM Server operations

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You can track all active APARs for this component.

APAR status

  • Closed as program error.

Error description

  • Remove the requirement of session.dat file in all IBM Rational
    Change Management (CM) Server operations
    
    
    ClearCase 7.1.x
    
    ALL Platforms [in which the CM server is able to be hosted from]
    
    
    Symptoms:
    
    As usage of the CM server increases, and more views are created,
    the session.dat file grows in size.  After a point in time (days
    to a few weeks), the run time of ClearCase operations starts to
    increase exponentially.  As every operation is trying to access
    the session.dat file, the size of the file is proportionate to
    the increase of the delay of the commands.
    
    On Windows, session.dat is found in:
    
       C:\Program Files\Rational\clearcase\var\ccweb
    
    On Solaris (as well as other UNIXes), here:
    
       /var/adm/rational/clearcase/ccweb
    
    Thus, the growing size of session.dat file slows down all
    ClearCase operations associated with CM Server, and must be
    removed.
    
    
    Workaround:  Contact IBM Rational Support for the appropriate
    steps to temporarily recover from this problem.
    

Local fix

Problem summary

  • The session.dat file is owned by the CCRC user who first
    created it - the ownership is dictated by the
    (username,domain,primary group) tuple. So if a user changes
    primary groups but use the same username and domain for
    authentication, access to the session.dat file would fail
    resulting in CCRC operations failing.
    

Problem conclusion

  • A fix is available in ClearCase version 7.1.1.1.
    

Temporary fix

Comments

APAR Information

  • APAR number

    PM03334

  • Reported component name

    CLEARCASE UNIX

  • Reported component ID

    5724G2901

  • Reported release

    701

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2009-12-11

  • Closed date

    2010-04-15

  • Last modified date

    2011-09-02

  • 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 UNIX

  • Fixed component ID

    5724G2901

Applicable component levels

  • R701 PSN

       UP



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Document information


More support for:

Rational ClearCase

Software version:

7.0.1

Reference #:

PM03334

Modified date:

2011-09-02

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