PJ40884: MQ HEARTBEATS ON TPF 4.1 SENDER CHANNELS

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APAR status

  • Closed as program error.

Error description

  • See problem summary
    

Local fix

  • na
    

Problem summary

  • APAR NUMBER:  PJ40884
    PRODUCT:  TPF4
    FUNCTIONAL AREA:  MQS SUPPORT
    SHIPPED IN PUT:  26
    
    ABSTRACT:
    With PJ31240, an idle fast sender channel does not detect a
    communications error when sending a heartbeat.
    
    APAR CONTENTS:
    FEATURE   TYPE                STATUS    NAME
    Base      Object              Changed   obj/oco/cuix40.o
    
    PREREQUISITE APARS:  To be applied in order listed.
    Base      Object              Changed   obj/oco/cuix40.o
      PJ25780(09)  PJ26156(10)  PJ26379(11)  PJ26393(12)
    PJ27023(12)  PJ27779(15)  PJ31240(21)  PJ35499(24)  PJ36153(24)
    
    COMMENTS:
    A TPF WebSphere MQ Fast Sender channel, (NPMSPEED-FAST) when
    sending a heartbeat, will not detect a communications error.
    When the sender channel attempts to send a heartbeat, if an
    error is returned, the error is never checked resulting in no
    heartbeat being sent. The Heartbeat monitor will then
    continually attempt to send a heartbeat, without detecting the
    network error. If messages arrive on the transmission queue,
    the channel will detect the network error when attempting to
    send the batch, resulting in the channel restarting.
    

Problem conclusion

  • SOLUTION:
    CUIX has been updated to check the return code from sending a
    heartbeat. If an error is detected sending a heartbeat, the
    sender channel will enter channel restart until communications
    can be re-established.
    
    
    DEPENDENCIES
    
    SEGMENTS TO BE ASSEMBLED OR COMPILED:
    None.
    
    SEGMENTS TO BE LINK EDITED:
    cmqs40.exe (Shipped in Tar File)
    
    COREQS:
    None.
    
    MIGRATION CONSIDERATIONS:
    None.
    
    UPDATED INFORMATION UNITS:
    None.
    
    See your IBM representative if you need additional information.
    
    DOWNLOAD INSTRUCTIONS:
    http://www.ibm.com/software/htp/tpf/pages/maint.htm
    

Temporary fix

Comments

APAR Information

  • APAR number

    PJ40884

  • Reported component name

    TPF 4.1

  • Reported component ID

    5748T1401

  • Reported release

    410

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2013-03-11

  • Closed date

    2013-07-01

  • Last modified date

    2013-07-01

  • 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

    TPF 4.1

  • Fixed component ID

    5748T1401

Applicable component levels

  • R410 PSY

       UP



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Document information


More support for:

TPF

Software version:

410

Reference #:

PJ40884

Modified date:

2013-07-01

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