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PH25650: Message CWWKO0230I is issued even if the Asynchronous I/O support was not activated.

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APAR status

  • Closed as program error.

Error description

  • The Asynchronous I/O support is enabled with a SAF profile
permitting the server's user id.  If the liberty server is
able to bind to an Angel process then the Asynchronous I/O
support is activated.  The message activation message is
issued when the Asynchronous I/O support is activated:

CWWKO0229I: Native Asynchronous I/O support for z/OS has
been activated.

The Asynchronous I/O support is deactivated, normally during
a normal server stop, the following message is issued:

CWWKO0230I: Native Asynchronous I/O support for z/OS has
been deactivated.

It has been observed that if the related SAF profile does
not permit the server's user id for ZOSAIO the deactivation
message is still issued.
This has lead to confusion and determining if the
Asynchronous I/O support was activated or not within some
target servers.

Local fix

  • 



Problem summary


    

  • ****************************************************************
* USERS AFFECTED:  All users of IBM WebSphere Application      *
*                  Server Liberty for z/OS                     *
****************************************************************
* PROBLEM DESCRIPTION: Message CWWKO0230I is issued even if    *
*                      the Asynchronous I/O support was not    *
*                      activated.                              *
****************************************************************
* RECOMMENDATION:                                              *
****************************************************************
The Asynchronous I/O support is enabled with a SAF profile
permitting the server's user id.  If the liberty server is able
to bind to an Angel process then the Asynchronous I/O support is
activated.  The message activation message is issued when the
Asynchronous I/O support is activated:

CWWKO0229I: Native Asynchronous I/O support for z/OS has been
activated.

The Asynchronous I/O support is deactivated, normally during a
normal server stop, the following message is issued:

CWWKO0230I: Native Asynchronous I/O support for z/OS has been
deactivated.

It has been observed that if the related SAF profile does not
permit the server's user id for ZOSAIO the deactivation message
is still issued.
This has lead to confusion and determining if the Asynchronous
I/O support was activated or not within some target servers.

    



Problem conclusion


    

  • Code has been modified to only issue the Asynchronous I/O
support deactivation message, CWWKO0230I, if the Asynchronous
I/O support has been activated (ie. message CWWKO0229I has been
issued).

The fix for this APAR is currently targeted for inclusion in fix
pack 20.0.0.6.  Please refer to the Recommended Updates page for
delivery information:
http://www.ibm.com/support/docview.wss?rs=180&uid=swg27004980

    



Temporary fix


    

  • 



Comments


    

  • 



APAR Information




    

  • APAR number
    PH25650
    • 

  • Reported component name
    LIBERTY PROF -
    • 

  • Reported component ID
    5655W6514
    • 

  • Reported release
    CD0
    • 

  • Status
    CLOSED  PER
    • 

  • PE
    NoPE
    • 

  • HIPER
    NoHIPER
    • 

  • Special Attention
    NoSpecatt / Xsystem
    • 

  • Submitted date
    2020-05-21
    • 

  • Closed date
    2020-05-21
    • 

  • Last modified date
    2020-05-21
    • 





    

  • 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
    LIBERTY PROF -
    • 

  • Fixed component ID
    5655W6514
    • 



Applicable component levels


    








      
              
                            

              

              [{"Business Unit":{"code":"BU054","label":"Systems w\/TPS"},"Product":{"code":"SG19M","label":"APARs - z\/OS environment"},"Platform":[{"code":"PF054","label":"z Systems"}],"Line of Business":{"code":"","label":""}}]
              

                          

          
 
        

      

    

      

        

          

            
Document Information


            

            


                        

            Modified date:
            

            22 May 2020
            

            
                      

        


        

        


      

    

  



    

  

  
    
            

          
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