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PM56506: A SVRCONN HAS COMPRESSION TYPE OF ZLIBFAST SPECIFIED BUT DATA SENT TO THE CLIENT SIDE DOES NOT APPEAR COMPRESSED

A fix is available

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APAR status

  • Closed as program error.

Error description

  • When a SVRCONN is defined with a COMPMSG type of ZLIBFAST any
    replies sent are not compressed. Per Hursley Change Team
    rriMQIServerCall is invoking rfpCOMPRESS_API in order to
    determine if the reply should be compressed; however, this code
    should be invoking rfpCOMPRESS_API_REPLY.
    

Local fix

Problem summary

  • ****************************************************************
    * USERS AFFECTED: All users of Websphere MQ for z/OS Version 7 *
    *                 Release 0 Modification 1.                    *
    ****************************************************************
    * PROBLEM DESCRIPTION: Compression for messages is not         *
    *                      occurring over a SVRCONN channel for    *
    *                      data sent from z/OS to the client.      *
    ****************************************************************
    * RECOMMENDATION:                                              *
    ****************************************************************
    If compression is negotiated between a client application and a
    SVRCONN channel the API reply segments returned are not
    compressed.
    
    In this case an incorrect check is being made against the
    segment type to determine if the segment is eligible for
    compression.
    

Problem conclusion

  • The code has been changed to check the segment type correctly.
    010Y
    CMQXRSRV
    

Temporary fix

Comments

  • ×**** PE14/02/13 FIX IN ERROR. SEE APAR PI09593  FOR DESCRIPTION
    

APAR Information

  • APAR number

    PM56506

  • Reported component name

    WMQ Z/OS V7

  • Reported component ID

    5655R3600

  • Reported release

    010

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2012-01-23

  • Closed date

    2012-04-30

  • Last modified date

    2014-02-24

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

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

    UK78367

Modules/Macros

  • CMQXRSRV
    

Fix information

  • Fixed component name

    WMQ Z/OS V7

  • Fixed component ID

    5655R3600

Applicable component levels

  • R010 PSY UK78367

       UP12/05/23 P F205

Fix is available

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Document Information

Modified date:
24 February 2014