IBM Support

IT34095: The NETTIME parameter for the DISPLAY CHSTATUS command has unexpectedly high values

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APAR status

  • Closed as program error.

Error description

  • A sender channel to a z/OS queue manager reported unexpectedly
high values for NETTIME.

NETTIME is a value calculated when the channel has MONCHL set
to LOW, MEDIUM, or HIGH.

Local fix

  • Apply z/OS APAR PH29093 if appropriate

Problem summary

  • ****************************************************************
USERS AFFECTED:
Users who have connections between z/OS and Distributed queue
managers and who use the NETTIME channel status attribute may be
affected by this problem.


Platforms affected:
MultiPlatform

****************************************************************
PROBLEM DESCRIPTION:
The NETTIME parameter of channel status was set to an
unexpectedly large value.  This problem was caused by the IBM MQ
code performing a calculation using the elapsed processing time
provided by z/OS which resulted in a negative value.   z/OS APAR
PH29093 documents this issue.

As a result of the incorrect calculation then NETTIME ends up
being displayed as a large  value in runmqsc.

Problem conclusion

  • APAR PH29093 on z/OS corrects the issue so that IBM MQ on
Distributed no longer receives the invalid data.  This APAR
corrects the IBM MQ Distributed code so that it is no longer
possible for a negative result to be calculated if invalid data
is received.

---------------------------------------------------------------
The fix is targeted for delivery in the following PTFs:

Version    Maintenance Level
v9.1 LTS   9.1.0.8
v9.2 LTS   9.2.0.3
v9.x CD    9.2.3

The latest available maintenance can be obtained from
'WebSphere MQ Recommended Fixes'
http://www-1.ibm.com/support/docview.wss?rs=171&uid=swg27006037

If the maintenance level is not yet available information on
its planned availability can be found in 'WebSphere MQ
Planned Maintenance Release Dates'
http://www-1.ibm.com/support/docview.wss?rs=171&uid=swg27006309
---------------------------------------------------------------

Temporary fix

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Comments


    

  • 



APAR Information




    

  • APAR number
    IT34095
    • 

  • Reported component name
    IBM MQ BASE MP
    • 

  • Reported component ID
    5724H7271
    • 

  • Reported release
    910
    • 

  • Status
    CLOSED  PER
    • 

  • PE
    NoPE
    • 

  • HIPER
    NoHIPER
    • 

  • Special Attention
    NoSpecatt / Xsystem
    • 

  • Submitted date
    2020-09-02
    • 

  • Closed date
    2021-04-27
    • 

  • Last modified date
    2021-05-05
    • 





    

  • 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
    IBM MQ BASE MP
    • 

  • Fixed component ID
    5724H7271
    • 



Applicable component levels


    








      
              
                            

              

              [{"Line of Business":{"code":"LOB45","label":"Automation"},"Business Unit":{"code":"BU053","label":"Cloud & Data Platform"},"Product":{"code":"SSYHRD","label":"IBM MQ"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"910"}]
              

                          

          
 
        

      

    

      

        

          

            
Document Information


            

            


                        

            Modified date:
            

            06 May 2021
            

            
                      

        


        

        


      

    

  



    

  

  
    
            

          
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