IBM Support

PI40220: EXTENDED MESSAGE SELECTION PROVIDER HANGS WHEN CONNECTING TO THEQUEUE MANAGER. 15/06/03 PTF PECHANGE

A fix is available

Subscribe

You can track all active APARs for this component.

 

APAR status

  • Closed as program error.

Error description

  • Extended message selection provider hangs when connecting to the
    queue manager.
    

Local fix

Problem summary

  • ****************************************************************
    * USERS AFFECTED: All users of WebSphere MQ for z/OS Version 8 *
    *                 Release 0 Modification 0.                    *
    ****************************************************************
    * PROBLEM DESCRIPTION: Applications using Content Based        *
    *                      Filtering (CBF) hang or return MQRC     *
    *                      2551 (MQRC_SELECTION_NOT_AVAILABLE),    *
    *                      and IIB Integration Servers / Execution *
    *                      Groups with CBF enabled do not shut     *
    *                      down correctly when the fix for PI26988 *
    *                      is active on a queue manager with       *
    *                      CONNSWAP=NO in the CSQ6SYSP section of  *
    *                      the zparm.                              *
    ****************************************************************
    * RECOMMENDATION:                                              *
    ****************************************************************
    PI26988 added code to the queue manager to make CBF enabled
    Integration server/Execution groups permanently non-swappable
    when they issue MQCONN to connect to the queue manager, and
    suspend until this was done.
    
    The mechanism used requires that any outstanding requests for
    temporary non-swappability are completed, however the task
    requesting that the address space is made permanently
    non-swappable will have issued a request for temporary
    non-swappability for the duration of the MQCONN call. This
    prevents the permanent request taking effect, and leaves the
    task suspended indefinitely.
    
    Any requests queued to this task will hang or timeout, and
    the task will not end when requested by IIB
    

Problem conclusion

  • CSQMCPRH is changed to remove its request for temporary
    non-swappability when requesting the address space is made
    permanently non-swappable, preventing the hang condition from
    occurring.
    000Y
    CSQAPRHX
    CSQARIB
    CSQMCPRH
    CSQMCUWT
    

Temporary fix

  • *********
    * HIPER *
    *********
    

Comments

APAR Information

  • APAR number

    PI40220

  • Reported component name

    WMQ Z/OS 8

  • Reported component ID

    5655W9700

  • Reported release

    000

  • Status

    CLOSED PER

  • PE

    YesPE

  • HIPER

    YesHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2015-05-01

  • Closed date

    2015-05-19

  • Last modified date

    2015-07-01

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

    PI36093

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

    UI27763

Modules/Macros

  • CSQAPRHX CSQARIB  CSQMCPRH CSQMCUWT
    

Fix information

  • Fixed component name

    WMQ Z/OS 8

  • Fixed component ID

    5655W9700

Applicable component levels

  • R000 PSY UI27763

       UP15/06/03 P F506 «

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":"LOB36","label":"IBM Automation"}}]

Document Information

Modified date:
01 July 2015