IBM Support

PH00755: FIXING CONCURRENTMODIFICATIONEXCEPTION REPORTED DURING MULTI SYNC OPERATION

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APAR status

  • Closed as program error.

Error description

  • Running multisync operation using the script fails with
    ConcurrentModificationException mentioned below.
    [6/20/18 18:52:03:710 CEST] FFDC
    Exception:java.util.ConcurrentModificationException
    SourceId:com.ibm.ws.management.cellmanager.DeploymentManager.mul
    tiSync.run ProbeId:206
    Reporter:com.ibm.ws.management.deploymentmanager.MultiSyncManage
    r$MultiSyncManagerThread@f5b42512
    java.util.ConcurrentModificationException
    at java.util.HashMap$HashIterator.nextEntry(HashMap.java:934)
    at java.util.HashMap$KeyIterator.next(HashMap.java:968)
    at
    com.ibm.ws.management.deploymentmanager.MultiSyncManager$MultiSy
    ncManagerThread.checkCurrentSyncs(MultiSyncManager.java:630)
    at
    com.ibm.ws.management.deploymentmanager.MultiSyncManager$MultiSy
    ncManagerThread.run(MultiSyncManager.java:424)
    at
    com.ibm.ws.management.deploymentmanager.MultiSyncManager.begin(M
    ultiSyncManager.java:151)
    at
    com.ibm.ws.management.deploymentmanager.MultiSyncManager.begin(M
    ultiSyncManager.java:127)
    at
    com.ibm.ws.management.deploymentmanager.DeploymentManager.multiS
    ync(DeploymentManager.java:300)
    

Local fix

  • N/A
    

Problem summary

  • ****************************************************************
    * USERS AFFECTED:  All users of IBM WebSphere Application      *
    *                  Server Network Deployment Version 8.5.5 or  *
    *                  later                                       *
    ****************************************************************
    * PROBLEM DESCRIPTION: In rare circumstances using             *
    *                      DeploymentManager MBean multisync       *
    *                      operation may fail                      *
    *                      with ConcurrentModificationException.   *
    ****************************************************************
    * RECOMMENDATION:                                              *
    ****************************************************************
    Running multisync operation fails with
    ConcurrentModificationException
    mentioned below.
    [6/20/18 18:52:03:710 CEST] FFDC
    Exception:java.util.ConcurrentModificat
    ionException
    SourceId:com.ibm.ws.management.cellmana
    ger.DeploymentManager.mul
    tiSync.run ProbeId:206
    Reporter:com.ibm.ws.management.deployme
    ntmanager.MultiSyncManage
    r$MultiSyncManagerThread@f5b42512
    java.util.ConcurrentModificationExcepti
    on
    

Problem conclusion

Temporary fix

Comments

APAR Information

  • APAR number

    PH00755

  • Reported component name

    WEBS APP SERV N

  • Reported component ID

    5724H8800

  • Reported release

    850

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt / Xsystem

  • Submitted date

    2018-07-20

  • Closed date

    2018-08-07

  • Last modified date

    2018-08-07

  • 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

    WEBS APP SERV N

  • Fixed component ID

    5724H8800

Applicable component levels



Document information

More support for: WebSphere Application Server
General

Software version: 850

Reference #: PH00755

Modified date: 07 August 2018


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