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PI74856: WAB 1.0 FEATURE ADDED IN THE CICTS:CORE FATURE, INCREASING THE CPU TIME DURING OSGI BUNDLE INSTALL

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APAR status

  • Closed as documentation error.

Error description

  • The customer has upgraded from 680 to 700 and experienced an
increase in CPU during the install of hundreds of OSGi bundles
with web-manifests.

At 700 the wab feature is automatically installed into Liberty
causing the increase of CPU.

The wab feature was not present in CICS 680, so the applications
were not considered web-application.

Local fix

  • repackage the application to not be web-application

Problem summary

  • ****************************************************************
* USERS AFFECTED: All CICS users.                              *
****************************************************************
* PROBLEM DESCRIPTION: Increased CPU usage during installation *
*                      of OSGi bundles containing web          *
*                      applications.                           *
****************************************************************
In CICS TS for z/OS 5.1 and 5.2, the wab-1.0 Liberty feature
could be removed from the default server.xml.  This allowed OSGi
bundles with manifests containing a Web-Context root to be
installed, but not as web applications.
Enhancements to CICS TS for z/OS 5.3 mean the wab-1.0 feature is
now required by CICS and included in the cicsts:core-1.0 and
cicsts:standard-1.0 features.
As a result Liberty will now treat OSGi bundles with a
Web-Context root as web applications and install them as such,
which for a large number of OSGi bundles may cause a
noticeable increase in CPU.

Problem conclusion

  • The CICS Transaction Server for z/OS Version 5 Release 3
Upgrading to CICS TS Version 5.3 (GC34-7436-00) and Java
Applications in CICS (SC34-7417-00) manuals will be updated to
state that the wab-1.0 feature is now required, and part of
cicsts:core-1.0 and cicsts:standard-1.0.

Temporary fix

  • 



Comments


    

  • 



APAR Information




    

  • APAR number
    PI74856
    • 

  • Reported component name
    CICS TS Z/OS V5
    • 

  • Reported component ID
    5655Y0400
    • 

  • Reported release
    00L
    • 

  • Status
    CLOSED  DOC
    • 

  • PE
    NoPE
    • 

  • HIPER
    NoHIPER
    • 

  • Special Attention
    NoSpecatt / Xsystem
    • 

  • Submitted date
    2017-01-12
    • 

  • Closed date
    2017-03-03
    • 

  • Last modified date
    2017-03-03
    • 





    

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

    • 

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

    • 




Publications Referenced


GC34743600SC34741700   





Fix information


    



Applicable component levels


    








      
              
                            

              

              [{"Business Unit":{"code":"BU058","label":"IBM Infrastructure w\/TPS"},"Product":{"code":"SSGMGV","label":"CICS Transaction Server"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"5.3","Edition":"","Line of Business":{"code":"LOB35","label":"Mainframe SW"}},{"Business Unit":{"code":"BU054","label":"Systems w\/TPS"},"Product":{"code":"SG19M","label":"APARs - z\/OS environment"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"5.3","Edition":"","Line of Business":{"code":"","label":""}}]
              

                          

          
 
        

      

    

      

        

          

            
Document Information


            

            


                        

            Modified date:
            

            03 March 2017
            

            
                      

        


        

        


      

    

  



    

  

  
    
            

          
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