IBM Support

PM74533: The exception, LockTimeoutException, prevents shard failure recovery.

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APAR status

  • Closed as program error.

Error description

  • Performing a force-recycle operation on a data grid with two
WebSphere DataPower XC10 appliances results in a
LockTimeoutException exception.

Local fix

  • 



Problem summary


    

  • ****************************************************************
* USERS AFFECTED:  All users of WebSphere eXtreme Scale.       *
****************************************************************
* PROBLEM DESCRIPTION: A timing window existed where lock      *
*                      contention could prevent failure        *
*                      recovery processing.                    *
****************************************************************
* RECOMMENDATION:                                              *
****************************************************************
A concurrency issue resulted in a LockTimeoutException
exception, which prevented shard failure recovery.

    



Problem conclusion


    

  • The code was fixed to resolve the concurrency issue.

    



Temporary fix


    

  • 



Comments


    

  • 



APAR Information




    

  • APAR number
    PM74533
    • 

  • Reported component name
    WS EXTREME SCAL
    • 

  • Reported component ID
    5724X6702
    • 

  • Reported release
    850
    • 

  • Status
    CLOSED  PER
    • 

  • PE
    NoPE
    • 

  • HIPER
    NoHIPER
    • 

  • Special Attention
    NoSpecatt
    • 

  • Submitted date
    2012-10-08
    • 

  • Closed date
    2012-10-24
    • 

  • Last modified date
    2012-10-24
    • 





    

  • 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
    WS EXTREME SCAL
    • 

  • Fixed component ID
    5724X6702
    • 



Applicable component levels


    

  • R711  PSY
       UP
    • 

  • R850  PSY
       UP
    • 








      
              
                            

              

              [{"Business Unit":{"code":"BU053","label":"Cloud & Data Platform"},"Product":{"code":"SSTVLU","label":"WebSphere eXtreme Scale"},"Component":"","ARM Category":[],"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"850","Edition":"","Line of Business":{"code":"LOB45","label":"Automation"}}]
              

                          

          
 
        

      

    

      

        

          

            
Document Information


            

            


                        

            Modified date:
            

            24 October 2012
            

            
                      

        


        

        


      

    

  



    

  

  
    
            

          
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