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IV50448: CPU UTILIZATION QUERIES FAIL DUE TO NON-MONOTONIC TIMESTAMPS

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You can track all active APARs for this component.

 

APAR status

  • Closed as program error.

Error description

  • Error Message: OperatingSystemMXBean.getSystemCpuLoad() returns
an error code if the system time changes.
.
Stack Trace: N/A
.

Local fix

  • Retry the call to getSystemCpuLoad()

Problem summary

  • getSystemCpuLoad() used a real time clock which may not be
monotonic under time adjustments, such as from NTP.
This affects Java 6.0 only.

Problem conclusion

  • This defect will be fixed in:
6.0.0 SR15
.
getSystemCpuLoad() now uses a monotonic clock, if available.

Temporary fix

  • 



Comments


    

  • 



APAR Information




    

  • APAR number
    IV50448
    • 

  • Reported component name
    J9 COMMON CODE
    • 

  • Reported component ID
    620700127
    • 

  • Reported release
    600
    • 

  • Status
    CLOSED  PER
    • 

  • PE
    NoPE
    • 

  • HIPER
    NoHIPER
    • 

  • Special Attention
    NoSpecatt
    • 

  • Submitted date
    2013-10-07
    • 

  • Closed date
    2013-10-07
    • 

  • Last modified date
    2013-10-07
    • 





    

  • 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
    J9 COMMON CODE
    • 

  • Fixed component ID
    620700127
    • 



Applicable component levels


    

  • R600  PSY
       UP
    • 








      
              
                            

              

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Document Information


            

            


                        

            Modified date:
            

            07 October 2013
            

            
                      

        


        

        


      

    

  



    

  

  
    
            

          
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