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PI68959: WMQ V900 - AN MQ CLIENT GETS A RC2119 'MESSAGE NOT CONVERTED', EVEN THE BUFFER IS TOO SMALL. A RC2080 IS EXPECTED.

A fix is available

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APAR status

  • Closed as program error.

Error description

  • An MQ Client issues an MQGET and provides a data buffer that is
    too small. A RC 2119 MQRC_NOT_CONVERTED is returned to the
    application.
    
    The CHIN trace shows a RC2142 MQRC_HEADER_ERROR is returned to
    the application.
    

Local fix

  • n/a
    

Problem summary

  • ****************************************************************
    * USERS AFFECTED:                                              *
    * All users of IBM MQ for z/OS Version 9 Release 0             *
    * Modification 0.                                              *
    ****************************************************************
    * PROBLEM DESCRIPTION:                                         *
    * Clients issuing MQGET to get or browse a message receive     *
    * MQRC_NOT_CONVERTED (MQRC 2119) when the message contains     *
    * very large RFH2 headers.                                     *
    ****************************************************************
    * RECOMMENDATION:                                              *
    * none                                                         *
    ****************************************************************
    After the client channel gets a message, rstSendAsyncMessage is
    called to send the message to the client. This routine segments
    the message based on the maximum transmission size for the
    channel (approx 32K for non-SSL channels/15K for SSL channels),
    and calls rriConvertValidate to convert the transmission to the
    client's encoding/ccsid, and validate the length of any headers
    in the message.
    If the message contains large RFH2 headers, causing the headers
    to span beyond the end of the first transmission segment,
    rriConvertValidate incorrectly determines that the header length
    is wrong, causing MQRC_NOT_CONVERTED to be returned.
    

Problem conclusion

  • rriConvertValidate is changed to no longer set
    MQRC_NOT_CONVERTED in this situation.
    

Temporary fix

Comments

APAR Information

  • APAR number

    PI68959

  • Reported component name

    MQ Z/OS V9

  • Reported component ID

    5655MQ900

  • Reported release

    000

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2016-09-09

  • Closed date

    2016-09-30

  • Last modified date

    2016-11-02

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

    PI56625

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

    UI41313

Modules/Macros

  • CMQXRMCV
    

Fix information

  • Fixed component name

    MQ Z/OS V9

  • Fixed component ID

    5655MQ900

Applicable component levels

  • R000 PSY UI41313

       UP16/10/14 P F610

Fix is available

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Document Information

Modified date:
02 November 2016