IBM Support

PI54952: CONCURRENTMODIFICATIONEXCEPTION IN RTCP

Subscribe

You can track all active APARs for this component.

APAR status

  • Closed as program error.

Error description

  • Starting a lot of stubs causes  ConcurrentModificationException
    in RTCP
    
    STEPS TO REPRODUCE:
    
    1. Start a large number of stubs in RTCP
    
    2. Notice that RTCP web interface starts to run very slow
    
    3. messages.log for RTCP shows ConcurrentModificationException
    messages
    
    4. Start Task Manager
    
    5. Notice that a java process on the server consumes ~30%
    constantly
    
    EXPECTED RESULTS:
    
    The stubs should start normally with no degradation of
    peformance in RTCP
    
    ACTUAL RESULTS:
    
    RTCP runs very slow and consumes 30% or more CPU
    
    WORKAROUND:
    
    None
    

Local fix

Problem summary

  • ****************************************************************
    * USERS AFFECTED:                                              *
    * All users of Rational Integration Tester working with        *
    * multiple stubs while dashboard is open                       *
    ****************************************************************
    * PROBLEM DESCRIPTION:                                         *
    * RTCP throws exception when starting too many stubs while     *
    * dashboard is open                                            *
    ****************************************************************
    * RECOMMENDATION:                                              *
    * Upgrade to Rational Integration Tester v8.7.1.1 which        *
    * includes a fix for this issue                                *
    ****************************************************************
    

Problem conclusion

  • A fix for this issue was provided in version 8.7.1.1 of Rational
    Integration Tester.
    

Temporary fix

Comments

APAR Information

  • APAR number

    PI54952

  • Reported component name

    RATL INTEGRA TE

  • Reported component ID

    5725G79IT

  • Reported release

    870

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2016-01-06

  • Closed date

    2016-01-11

  • Last modified date

    2016-01-11

  • 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

    RATL INTEGRA TE

  • Fixed component ID

    5725G79IT

Applicable component levels

  • R800 PSN

       UP

  • R801 PSN

       UP

  • R850 PSN

       UP

  • R851 PSN

       UP

  • R860 PSN

       UP

  • R870 PSN

       UP

  • R871 PSY

       UP



Document information

More support for: Rational Test Workbench

Software version: 8.7

Reference #: PI54952

Modified date: 11 January 2016