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PI42203: WebSphere eXtreme Scale can experience out-of-memory errors when the heap is consumed by XsByteBufferInternal (XIO) code.

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APAR status

  • Closed as program error.

Error description

  • The com.ibm.ws.objectgrid.io.XsByteBufferInternal plug-in
completely consumes the heap, causing an out of memory (OOM)
error.

Local fix

  • 



Problem summary


    

  • ****************************************************************
* USERS AFFECTED:  WebSphere eXtreme Scale users who use the   *
*                  IBM eXtremeIO (XIO) transport mechanism.    *
****************************************************************
* PROBLEM DESCRIPTION: The                                     *
*                      com.ibm.ws.objectgrid.io.XsByteBuffe    *
*                      rInternal plug-in might consume large   *
*                      amounts of heap causing an OOM          *
*                      condition.                              *
****************************************************************
* RECOMMENDATION:                                              *
****************************************************************
An XIO communication error can occur where
com.ibm.ws.objectgrid.io.XsByteBufferInternal can consume
large amounts of heap causing a OOM condition.

    



Problem conclusion


    

  • A code fix was made to eliminate this error condition.

    



Temporary fix


    

  • 



Comments


    

  • 



APAR Information




    

  • APAR number
    PI42203
    • 

  • Reported component name
    WS EXTREME SCAL
    • 

  • Reported component ID
    5724X6702
    • 

  • Reported release
    860
    • 

  • Status
    CLOSED  PER
    • 

  • PE
    NoPE
    • 

  • HIPER
    NoHIPER
    • 

  • Special Attention
    NoSpecatt
    • 

  • Submitted date
    2015-06-02
    • 

  • Closed date
    2015-09-01
    • 

  • 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
    WS EXTREME SCAL
    • 

  • Fixed component ID
    5724X6702
    • 



Applicable component levels


    

  • R860  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":"860","Edition":"","Line of Business":{"code":"LOB45","label":"Automation"}}]
              

                          

          
 
        

      

    

      

        

          

            
Document Information


            

            


                        

            Modified date:
            

            01 September 2015
            

            
                      

        


        

        


      

    

  



    

  

  
    
            

          
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