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PI67531: RACE CONDITION CAN CAUSE CLEARCASE REMOTE CLIENT SERVER TO REACH THE MAX CONNECTION LIMIT

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You can track all active APARs for this component.

APAR status

  • Closed as program error.

Error description

  • After a CCRC connection is allowed to expire, a race condition
    can occur when the CCRC client attempts to reconnect to the CCRC
    server. This will cause the client to use more sessions for a
    single user on the server than it should. Eventually the CCRC
    server will run out of sessions and new client connections will
    not be possible.
    
    A generic login error will be seen by the client:
    CRMAP7009: Command "Login" failed: Error: "Unable to connect to
    server at URL <url>.
    
    The CCRC server logs will contain the following message:
    CCRC WAN Server has reached maximum session capacity.
    

Local fix

  • n/a
    

Problem summary

  • ****************************************************************
    * USERS AFFECTED:                                              *
    * User of an IBM ClearCase CCRC WAN server.                    *
    ****************************************************************
    * PROBLEM DESCRIPTION:                                         *
    * In rare conditions when automatically re-establishing a      *
    * login session to an IBM Rational ClearCase CCRC WAN server,  *
    * a CTE, CMAPI or rcleartool client might consume all the      *
    * sessions available on a CCRC WAN server.                     *
    ****************************************************************
    * RECOMMENDATION:                                              *
    ****************************************************************
    

Problem conclusion

  • A fix is available in ClearCase versions 8.0.1.12 and 9.0.0.2
    

Temporary fix

Comments

APAR Information

  • APAR number

    PI67531

  • 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

    2016-08-12

  • Closed date

    2016-09-19

  • Last modified date

    2016-09-19

  • 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

  • R801 PSY

       UP

  • R900 PSY

       UP



Document information

More support for: Rational ClearCase

Software version: 801

Reference #: PI67531

Modified date: 19 September 2016