IBM Support

PI65464: HIGH CPU UTILITIZATION MAY OCCUR WHEN COPYING BUSINESS OBJECTS.

Fixes are available

9.0.0.3: WebSphere Application Server traditional V9.0 Fix Pack 3
8.0.0.13: WebSphere Application Server V8.0 Fix Pack 13
7.0.0.43: WebSphere Application Server V7.0 Fix Pack 43
9.0.0.4: WebSphere Application Server traditional V9.0 Fix Pack 4
8.5.5.12: WebSphere Application Server V8.5.5 Fix Pack 12
9.0.0.5: WebSphere Application Server traditional V9.0 Fix Pack 5
8.0.0.14: WebSphere Application Server V8.0 Fix Pack 14
9.0.0.6: WebSphere Application Server traditional V9.0 Fix Pack 6
8.5.5.13: WebSphere Application Server V8.5.5 Fix Pack 13
9.0.0.7: WebSphere Application Server traditional V9.0 Fix Pack 7
7.0.0.45: WebSphere Application Server V7.0 Fix Pack 45
8.0.0.15: WebSphere Application Server V8.0 Fix Pack 15
7.0.0.45: Java SDK 1.6 SR16 FP60 Cumulative Fix for WebSphere Application Server
7.0.0.43: Java SDK 1.6 SR16 FP41 Cumulative Fix for WebSphere Application Server
9.0.0.8: WebSphere Application Server traditional V9.0 Fix Pack 8
8.5.5.14: WebSphere Application Server V8.5.5 Fix Pack 14
9.0.0.9: WebSphere Application Server traditional V9.0 Fix Pack 9
9.0.0.10: WebSphere Application Server traditional V9.0 Fix Pack 10
8.5.5.15: WebSphere Application Server V8.5.5 Fix Pack 15
9.0.0.11: WebSphere Application Server traditional V9.0 Fix Pack 11
9.0.5.0: WebSphere Application Server traditional Version 9.0.5 Refresh Pack
9.0.5.1: WebSphere Application Server traditional Version 9.0.5 Fix Pack 1
9.0.5.2: WebSphere Application Server traditional Version 9.0.5 Fix Pack 2
8.5.5.17: WebSphere Application Server V8.5.5 Fix Pack 17
9.0.5.3: WebSphere Application Server traditional Version 9.0.5 Fix Pack 3
9.0.5.4: WebSphere Application Server traditional Version 9.0.5 Fix Pack 4
9.0.5.5: WebSphere Application Server traditional Version 9.0.5 Fix Pack 5
9.0.5.6: WebSphere Application Server traditional Version 9.0.5 Fix Pack 6

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APAR status

  • Closed as program error.

Error description

  • Steps to copy business objects may encounter high CPU
    utilization, with
    collected thread dumps showing calls through EcoreUtil.copy, for
    example, as shown below:
    
    WeakHashMap.get(Object)Object+35
      (line 699)
    org.eclipse.emf.ecore.util.FeatureMapUtil$BasicValidator$Cache.g
    et(org.e
    clipse.emf.ecore.EStructuralFeature)Boolean [compiled] +3
      (line 2714)
    org.eclipse.emf.ecore.util.FeatureMapUtil$BasicValidator.isValid
    (org.ecl
    ipse.emf.ecore.EStructuralFeature)void+16
      (line 2886)
    org.eclipse.emf.ecore.util.BasicFeatureMap.add(Object)void+95
      (line 954)
    org.eclipse.emf.ecore.util.EcoreUtil$Copier.copyReferences()void
    [compiled] +388
      (line 1255)
    org.eclipse.emf.ecore.util.EcoreUtil.copy(org.eclipse.emf.ecore.
    EObject)
    org.eclipse.emf.ecore.EObject [compiled] +16
      (line 710)
    com.ibm.ws.bo.service.BOCopyImpl.copy(commonj.sdo.DataObject)com
    monj.sdo
    .DataObject+36
      (line 139)
    com.ibm.ws.bo.delegate.BOCopyDelegate.copy(commonj.sdo.DataObjec
    t)common
    j.sdo.DataObject [compiled] +13
      (line 107)
    com.ibm.ws.sibx.smobo.util.BOHelper.copy(commonj.sdo.DataObject)
    commonj.
    sdo.DataObject+7
      (line 167)
    com.ibm.ws.sibx.smobo.impl.ServiceMessageObjectImpl.clone()com.i
    bm.websp
    here.sibx.smobo.ServiceMessageObject+59
      (line 3652)
    com.ibm.ws.sibx.scax.mediation.engine.SIBXMessageCloner.cloneMes
    sage(com
    monj.sdo.DataObject)commonj.sdo.DataObject+39
      (line 120)
    com.ibm.ws.sibx.scax.mediation.engine.JavaMediationPrimitive.set
    Terminal
    Fired(com.ibm.ws.sibx.scax.mediation.engine.TerminalFiredEvent)v
    oid+139
      (line 2202)
    

Local fix

  • n/a
    

Problem summary

  • ****************************************************************
    * USERS AFFECTED:  Users of IBM WebSphere Application Server   *
    *                  SIB / Business Object function.             *
    ****************************************************************
    * PROBLEM DESCRIPTION: Service integration bus (SIB) and/or    *
    *                      Business Object operations can see      *
    *                      high CUP utilization.                   *
    ****************************************************************
    * RECOMMENDATION:                                              *
    ****************************************************************
    When performing application operations which use SIB or
    Business Object functionality, high CPU usage can be seen in
    method "copy" of class "org.eclipse.emf.ecore.util.EcoreUtil",
    invoked from method "copy" from class
    "com.ibm.ws.bo.service.BOCopyImpl".
    A collected thread dump from the application server process
    will show a stack similar to the following:
    WeakHashMap.get(Object)Object+35 (line 699)
    org.eclipse.emf.ecore.util.FeatureMapUtil$BasicValidator$Cache.g
    et(org.eclipse.emf.ecore.EStructuralFeature)Boolean [compiled]
    +3 (line 2714)
    org.eclipse.emf.ecore.util.FeatureMapUtil$BasicValidator.isValid
    (org.eclipse.emf.ecore.EStructuralFeature)void+16 (line 2886)
    org.eclipse.emf.ecore.util.BasicFeatureMap.add(Object)void+95
    (line 954)
    org.eclipse.emf.ecore.util.EcoreUtil$Copier.copyReferences()void
    [compiled] +388 (line 1255)
    org.eclipse.emf.ecore.util.EcoreUtil.copy(org.eclipse.emf.ecore.
    EObject)org.eclipse.emf.ecore.EObject [compiled] +16 (line 710)
    com.ibm.ws.bo.service.BOCopyImpl.copy(commonj.sdo.DataObject)com
    monj.sdo.DataObject+36 (line 139)
    com.ibm.ws.bo.delegate.BOCopyDelegate.copy(commonj.sdo.DataObjec
    t)commonj.sdo.DataObject [compiled] +13 (line 107)
    com.ibm.ws.sibx.smobo.util.BOHelper.copy(commonj.sdo.DataObject)
    commonj.sdo.DataObject+7 (line 167)
    com.ibm.ws.sibx.smobo.impl.ServiceMessageObjectImpl.clone()com.i
    bm.websphere.sibx.smobo.ServiceMessageObject+59 (line 3652)
    com.ibm.ws.sibx.scax.mediation.engine.SIBXMessageCloner.cloneMes
    sage(commonj.sdo.DataObject)commonj.sdo.DataObject+39 (line
    120)
    com.ibm.ws.sibx.scax.mediation.engine.JavaMediationPrimitive.set
    TerminalFired(com.ibm.ws.sibx.scax.mediation.engine.TerminalFire
    dEvent)void+139 (line 2202)
    For this problem, a collected thread dump must show the call
    through class ECoreUtil.
    

Problem conclusion

  • The problem occurs because the step of copying Business
    Objects, which is implemented by class "EcoreUtil", performs
    validation of the copied objects.  The validation step is
    expensive and is unnecessary because validation has already
    been performed on the Business Object which is being copied.
    
    The problem is resolved by a code update which skips the
    validation step when copying Business Objects.
    
    The fix for this APAR is currently targeted for inclusion in
    fix pack versions 7.0.0.43, 8.0.0.13, 8.5.5.12, and
    9.0.0.3.  Please refer to the Recommended Updates
    page for delivery information:
    http://www.ibm.com/support/docview.wss?rs=180&uid=swg27004980
    

Temporary fix

Comments

APAR Information

  • APAR number

    PI65464

  • Reported component name

    WEBS APP SERV N

  • Reported component ID

    5724H8800

  • Reported release

    700

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2016-07-06

  • Closed date

    2016-12-01

  • Last modified date

    2018-01-16

  • 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

    WEBS APP SERV N

  • Fixed component ID

    5724H8800

Applicable component levels

  • R700 PSY

       UP

  • R800 PSY

       UP

  • R850 PSY

       UP

  • R900 PSY

       UP

[{"Business Unit":{"code":"BU053","label":"Cloud \u0026 Data Platform"},"Product":{"code":"SSEQTP","label":"WebSphere Application Server"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"7.0","Line of Business":{"code":"LOB36","label":"IBM Automation"}}]

Document Information

Modified date:
14 October 2021