PM69146: The WebSphere eXtreme Scale locking function does not release locks.

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APAR status

  • Closed as program error.

Error description

  • TheLockTimeoutException exception occurs even though the lock
    was granted. Therefore, the lock is not released and future
    requests for the lock fail.
    

Local fix

Problem summary

  • ****************************************************************
    * USERS AFFECTED:  All users of WebSphere eXtreme Scale who    *
    *                  use locking.                                *
    ****************************************************************
    * PROBLEM DESCRIPTION: If you use a key with a high rate of    *
    *                      contention, the lock state can become   *
    *                      corrupted and cause                     *
    *                      LockTimeoutException errors.            *
    ****************************************************************
    * RECOMMENDATION:                                              *
    ****************************************************************
    A problem was identified where a lock request was reported as
    failed; however, the lock was granted shortly after the
    request. The code was updated to do an additional check to
    determine whether the lock request was granted after getting
    the appropriate monitor.
    

Problem conclusion

  • An interim fix is available for this problem.
    

Temporary fix

Comments

APAR Information

  • APAR number

    PM69146

  • Reported component name

    WS EXTREME SCAL

  • Reported component ID

    5724X6702

  • Reported release

    711

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2012-07-18

  • Closed date

    2012-07-27

  • Last modified date

    2012-07-27

  • 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

    WS EXTREME SCAL

  • Fixed component ID

    5724X6702

Applicable component levels

  • R711 PSY

       UP

  • R850 PSY

       UP



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Document information


More support for:

WebSphere eXtreme Scale

Software version:

711

Reference #:

PM69146

Modified date:

2012-07-27

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