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IC70978: RELEASING FCM RESOURCES MAY TAKE LONGER THAN EXPECTED

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You can track all active APARs for this component.

 

APAR status

  • Closed as program error.

Error description

  • In DPF environments, the release of FCM buffers or channels may
    take longer than expected if a large number of FCM resources are
    allocated. One possible consequence of this is
    db2stop may time out due to it taking a relatively long time to
    free fast communication manager resources. FCM is shut down
    during the final phase of db2stop. When this phase takes longer
    than the time specified by START_STOP_TIME then the node is
    forcefully terminated. Another possible consequence is
    performance slowdowns that coincide with periods when FCM
    
    automatic tuning releases resources.
    

Local fix

  • If db2stop is timing out then increase the START_STOP_TIME value
    in the database manager configuration.
    

Problem summary

  • ****************************************************************
    * USERS AFFECTED:                                              *
    * All users using DB2 V9.7 FP3a and below are affected.        *
    ****************************************************************
    * PROBLEM DESCRIPTION:                                         *
    * In DPF environments, the release of FCM buffers or channels  *
    * may take longer than expected if a large number of FCM       *
    * resources are allocated.                                     *
    ****************************************************************
    * RECOMMENDATION:                                              *
    * Use the local fix, or upgrade to DB2 V9.7 FP4                *
    ****************************************************************
    

Problem conclusion

  • This APAR is fixed in DB2 V9.7 FP4.
    

Temporary fix

Comments

APAR Information

  • APAR number

    IC70978

  • Reported component name

    DB2 FOR LUW

  • Reported component ID

    DB2FORLUW

  • Reported release

    970

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2010-09-07

  • Closed date

    2011-04-29

  • Last modified date

    2011-04-29

  • APAR is sysrouted FROM one or more of the following:

    IC70973

  • APAR is sysrouted TO one or more of the following:

Fix information

  • Fixed component name

    DB2 FOR LUW

  • Fixed component ID

    DB2FORLUW

Applicable component levels

  • R970 PSY

       UP

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Document Information

Modified date:
29 April 2011