IBM Support

PI50384: PROBE IDS XC076010 AND C0398008 ARE PRODUCED FOR CLIENTS ATTACHED TO Z/OS QMGR DURING SHUTDOWN.

A fix is available

Subscribe

You can track all active APARs for this component.

 

APAR status

  • Closed as program error.

Error description

  • The customer has started rolling out MQ Client 8.0.0.2 to their
    Unix servers. The Clients connect to a WebSphere MQ for z/OS V8
    QMGR. On the weekend when they take the Mainframe down for
    maintenance, the Clients generate FDCs as though they are
    having issues with recognizing the Remote QMGR shutting
    down. The following to probe IDs in the 2 FDCs for a particular
    server that always generate FDCs.
    .
    Probe Id          :- XC076010
    Application Name  :- MQM
    Component         :- xcsGetMessage
    .
    Probe Id          :- CO398008
    Application Name  :- MQM
    Component         :- cciFindConv
    .
    The change team has taken a look at the dump from the z/OS CHIN
    and can see the cause of the FDC issues by cciFindConv on the
    client side. When the CHIN receives the rfpSAT_END_CONV response
    from the client it issues an MQCTL which fails with 2202,
    MQRC_CONNECTION_QUIESCING, and rstSendNotification is again
    invoked and sends the rfpNC_STREAMING_FAILURE noification once
    again.
    

Local fix

Problem summary

  • ****************************************************************
    * USERS AFFECTED: All users of WebSphere MQ Version 8          *
    *                 Release 0 Modification 0.                    *
    ****************************************************************
    * PROBLEM DESCRIPTION: A Client application connected to a V8  *
    *                      z/OS queue manager using SVRCONN        *
    *                      channels configured with SHARECNV>0,    *
    *                      can generate FDC files in the client    *
    *                      side when the CHIN is shutdown while    *
    *                      the application is running.             *
    *                                                              *
    *                      FDC reports error rrcE_PROTOCOL_ERROR,  *
    *                      probe Id CO398008 and error message     *
    *                      AMQ9504.                                *
    ****************************************************************
    * RECOMMENDATION:                                              *
    ****************************************************************
    When the CHIN is shutdown while the client application is
    executing MQ API calls. These API calls fail with MQRC 2202
    (MQRC_CONNECTION_QUIESCING) or MQRC 2009
    (MQRC_CONNECTION_BROKEN). The CHIN should notify the client of
    these failures but if the failure occurs after the channel
    conversation has ended the CHIN still sends these (unexpected)
    notifications causing the protocol error reported by the FDC
    files.
    

Problem conclusion

  • The CHIN has been changed to avoid sending notifications
    to a client after the channel conversations have been
    ended.
    000Y
    CMQXRSTF
    

Temporary fix

Comments

APAR Information

  • APAR number

    PI50384

  • Reported component name

    WMQ Z/OS 8

  • Reported component ID

    5655W9700

  • Reported release

    000

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2015-10-12

  • Closed date

    2016-01-20

  • Last modified date

    2016-03-02

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

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

    UI34590

Modules/Macros

  • CMQXRSTF
    

Fix information

  • Fixed component name

    WMQ Z/OS 8

  • Fixed component ID

    5655W9700

Applicable component levels

  • R000 PSY UI34590

       UP16/02/03 P F602

Fix is available

  • Select the PTF appropriate for your component level. You will be required to sign in. Distribution on physical media is not available in all countries.

[{"Business Unit":{"code":"BU053","label":"Cloud & Data Platform"},"Product":{"code":"SSYHRD","label":"IBM MQ"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"8.0","Edition":"","Line of Business":{"code":"LOB45","label":"Automation"}}]

Document Information

Modified date:
02 March 2016