PM82449: Replication is enhanced for more efficient scaling in environments with a large number of maps.

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APAR status

  • Closed as program error.

Error description

  • Asynchronous replication takes significantly longer to get all
    the data replicated when a large number of maps exist.
    

Local fix

Problem summary

  • ****************************************************************
    * USERS AFFECTED:  WebSphere eXtreme Scale users who have      *
    *                  data                                        *
    *                  grids with a large number of maps and use   *
    *                  asynchronous replication or multiple        *
    *                  domains.                                    *
    ****************************************************************
    * PROBLEM DESCRIPTION: The calculation to determine how much   *
    *                      data to replicate per replication       *
    *                      cycle was too pessimistic.              *
    ****************************************************************
    * RECOMMENDATION:                                              *
    ****************************************************************
    The algorithm to determine how much data to replicate per
    replication cycle was updated to be more optimistic so that
    more data is replicated per replication cycle when there is a
    large number of maps.
    

Problem conclusion

  • An interim fix for this problem is available for the V8.5 Fix
    Pack 1 and V8.5 Fix Pack 3.
    

Temporary fix

Comments

APAR Information

  • APAR number

    PM82449

  • Reported component name

    WS EXTREME SCAL

  • Reported component ID

    5724X6702

  • Reported release

    850

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2013-02-08

  • Closed date

    2013-03-28

  • Last modified date

    2013-03-28

  • 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

  • R850 PSY

       UP

  • R860 PSY

       UP



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Document information


More support for:

WebSphere eXtreme Scale

Software version:

850

Reference #:

PM82449

Modified date:

2013-03-28

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