IBM Support

IT08729: SUSPENDED CDSA SESSIONS TAKE UNUSUALLY LONG TIME TO BE RESUMED WHEN SYSTEM IS UNDER HEAVY LOAD

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Direct links to fixes

si_52_build_5020500_interimfix_8
si_52_build_5020500_interimfix_8
si_52_build_5020500_interimfix_8

 

APAR status

  • Closed as program error.

Error description

  • When a BP executes a CD Begin Session Service,
the CDSA considers its current session load and either
executes or suspends the request.
Suspended requests are resumed as resources
become available, but are taking an unusually long time
to resume.

Local fix

  • STRRTC - 464802
GUB / GUB
Circumvention: None

Problem summary

  • Users Affected:
All

Problem Description:
PNODE sessions suspended because of insufficient PNODE session
resources eventually resume, but at a very slow rate.

Platforms affected:
All

Problem conclusion

  • Resolution Summary:
Suspend Queue processing performance has been improved by
allowing returning sessions to claim suspendended session of
other group member adapters, instead of restricting selection to
those belonging to itself. In addition, a number of scenarios
have been improved including automatic
resumption of suspended sessions when an adapter goes down with
sessions in the suspend queue.

IMPORTANT: This release modifies the database schema and
requires all nodes in the cluster to be down before proceding
to install the interim fix.

Delivered In:
5020500_8

Temporary fix

  • 



Comments


    

  • 



APAR Information




    

  • APAR number
    IT08729
    • 

  • Reported component name
    STR B2B INTEGRA
    • 

  • Reported component ID
    5725D0600
    • 

  • Reported release
    525
    • 

  • Status
    CLOSED  PER
    • 

  • PE
    NoPE
    • 

  • HIPER
    NoHIPER
    • 

  • Special Attention
    NoSpecatt
    • 

  • Submitted date
    2015-05-05
    • 

  • Closed date
    2015-08-18
    • 

  • Last modified date
    2015-09-01
    • 





    

  • 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
    STR B2B INTEGRA
    • 

  • Fixed component ID
    5725D0600
    • 



Applicable component levels


    

  • R525  PSY
       UP
    • 








      
              
                            

              

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Document Information


            

            


                        

            Modified date:
            

            01 September 2015
            

            
                      

        


        

        


      

    

  



    

  

  
    
            

          
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