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PM19323: REPEATED SICONNECTIONDROPPEDEXCEPTION: CWSIJ0047E: AN OPERATION ON WAS ATTEMPTED ON A CONNECTION THAT IS ALREADY CLOSED

Fixes are available

7.0.0.13: WebSphere Application Server V7.0 Fix Pack 13 for AIX
7.0.0.13: WebSphere Application Server V7.0 Fix Pack 13 for HP-UX
7.0.0.13: WebSphere Application Server V7.0 Fix Pack 13 for IBM i
7.0.0.13: WebSphere Application Server V7.0 Fix Pack 13 for Linux
7.0.0.13: WebSphere Application Server V7.0 Fix Pack 13 for Solaris
7.0.0.13: WebSphere Application Server V7.0 Fix Pack 13 for Windows
7.0.0.13: Java SDK 1.6 SR8FP1 Cumulative Fix for WebSphere Application Server
7.0.0.15: WebSphere Application Server V7.0 Fix Pack 15 for AIX
7.0.0.15: Java SDK 1.6 SR9 Cumulative Fix for WebSphere Application Server
7.0.0.15: WebSphere Application Server V7.0 Fix Pack 15 for HP-UX
7.0.0.15: WebSphere Application Server V7.0 Fix Pack 15 for IBM i
7.0.0.15: WebSphere Application Server V7.0 Fix Pack 15 for Linux
7.0.0.15: WebSphere Application Server V7.0 Fix Pack 15 for Solaris
7.0.0.15: WebSphere Application Server V7.0 Fix Pack 15 for Windows
7.0.0.17: WebSphere Application Server V7.0 Fix Pack 17
7.0.0.17: Java SDK 1.6 SR9 FP1 Cumulative Fix for WebSphere Application Server
7.0.0.19: WebSphere Application Server V7.0 Fix Pack 19
7.0.0.21: WebSphere Application Server V7.0 Fix Pack 21
7.0.0.23: WebSphere Application Server V7.0 Fix Pack 23
7.0.0.25: WebSphere Application Server V7.0 Fix Pack 25
7.0.0.27: WebSphere Application Server V7.0 Fix Pack 27
7.0.0.29: WebSphere Application Server V7.0 Fix Pack 29
7.0.0.31: WebSphere Application Server V7.0 Fix Pack 31
7.0.0.27: Java SDK 1.6 SR13 FP2 Cumulative Fix for WebSphere Application Server
7.0.0.33: WebSphere Application Server V7.0 Fix Pack 33
7.0.0.35: WebSphere Application Server V7.0 Fix Pack 35
7.0.0.37: WebSphere Application Server V7.0 Fix Pack 37
7.0.0.39: WebSphere Application Server V7.0 Fix Pack 39
7.0.0.41: WebSphere Application Server V7.0 Fix Pack 41
7.0.0.43: WebSphere Application Server V7.0 Fix Pack 43
7.0.0.45: WebSphere Application Server V7.0 Fix Pack 45
7.0.0.19: Java SDK 1.6 SR9 FP2 Cumulative Fix for WebSphere Application Server
7.0.0.21: Java SDK 1.6 SR9 FP2 Cumulative Fix for WebSphere
7.0.0.23: Java SDK 1.6 SR10 FP1 Cumulative Fix for WebSphere
7.0.0.25: Java SDK 1.6 SR11 Cumulative Fix for WebSphere Application Server
7.0.0.27: Java SDK 1.6 SR12 Cumulative Fix for WebSphere Application Server
7.0.0.29: Java SDK 1.6 SR13 FP2 Cumulative Fix for WebSphere Application Server
7.0.0.45: Java SDK 1.6 SR16 FP60 Cumulative Fix for WebSphere Application Server
7.0.0.31: Java SDK 1.6 SR15 Cumulative Fix for WebSphere Application Server
7.0.0.35: Java SDK 1.6 SR16 FP1 Cumulative Fix for WebSphere Application Server
7.0.0.37: Java SDK 1.6 SR16 FP3 Cumulative Fix for WebSphere Application Server
7.0.0.39: Java SDK 1.6 SR16 FP7 Cumulative Fix for WebSphere Application Server
7.0.0.41: Java SDK 1.6 SR16 FP20 Cumulative Fix for WebSphere Application Server
7.0.0.43: Java SDK 1.6 SR16 FP41 Cumulative Fix for WebSphere Application Server
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APAR status

  • Closed as program error.

Error description

  • Repeated SYSOUT messages surface in the adjunct region with:
    
    CWSIC2023E: A communication error occurred when sending to
    or receiving from a remote client: exception
    com.ibm.wsspi.sib.core.exception..SIConnectionDroppedException:
    CWSIJ0047E: An operation was attempted on a connection that is
    already closed..com.ibm.ws.sib.utils.ras.SibMessage
    
    A javacore of the looping address space shows:
    
    com/ibm/ejs/ras/CB390TraceEventListener.writeTrace(Native
    Method)
    
    com/ibm/ejs/ras/CB390TraceEventListener.processEvent(CB390TraceE
    ventListener.java:390(Compiled Code))
    com/ibm/ws/logging/WsHandlerWrapper.publish(WsHandlerWrapper.jav
    java/util/logging/Logger.log(Logger.java:1109(Compiled Code))
    com/ibm/ejs/ras/Tr.logToJSR47Logger(Tr.java(Compiled Code))
    com/ibm/ejs/ras/Tr.fireEvent(Tr.java:1611(Compiled Code))
    com/ibm/ejs/ras/Tr.fireMessageEvent(Tr.java:1535(Compiled Code))
    com/ibm/ejs/ras/Tr.error(Tr.java:730(Compiled Code))
    com/ibm/ws/sib/utils/ras/SibMessage$TrListener.message(SibMessag
    com/ibm/ws/sib/utils/ras/SibMessage.error(SibMessage.java:220(Co
    com/ibm/ws/sib/utils/ras/SibTr.error(SibTr.java:738(Compiled
    com/ibm/ws/sib/comms/server/clientsupport/StaticCATHelper.sendAs
    yncExceptionToClient(StaticCATHelper.java:222(Compiled Code))
    com/ibm/ws/sib/comms/server/clientsupport/CATAsynchConsumer.cons
    umeMessages(CATAsynchConsumer.java:1074)
    com/ibm/ws/sib/processor/impl/AsynchConsumer.processMsgs(AsynchC
    onsumer.java:113)
    com/ibm/ws/sib/processor/impl/RMQLocalConsumerPoint.addAsynchMes
    sage(RMQLocalConsumerPoint.java:1769)
    com/ibm/ws/sib/processor/impl/RMQAsynchThread$AsynchRunnable.run
    AsynchConsumer(RMQAsynchThread.java:575)
    com/ibm/ws/sib/processor/impl/RMQAsynchThread$AsynchRunnable.run
    com/ibm/ws/util/ThreadPool$Worker.run(ThreadPool.java:1550(Compi
    

Local fix

Problem summary

  • ****************************************************************
    * USERS AFFECTED:  All users of IBM WebSphere Application      *
    *                  Server V7.0 using WebSphere MQ Servers on   *
    *                  z/OS                                        *
    ****************************************************************
    * PROBLEM DESCRIPTION: A CWSIC2023E exception is repeatedly    *
    *                      outputted to SYSOUT of the Adjunct      *
    *                      region multiple times a second.         *
    *                      During this time no messages            *
    *                      can be received by JMS applications.    *
    ****************************************************************
    * RECOMMENDATION:                                              *
    ****************************************************************
    This problem can only occur when using the WebSphere MQ Servers
    function within WebSphere Application Server on z/OS.
    
    A javacore of the adjunct region shows a thread running doing
    the following:
    
    com/ibm/ejs/ras/Tr.error(Tr.java:730(Compiled Code))
    com/ibm/ws/sib/utils/ras/SibMessage$TrListener.message(SibMessag
    e.java:1com/ibm/ws/sib/utils/ras/SibMessage.error(SibMessage.jav
    a:220(Compiled...))
    com/ibm/ws/sib/utils/ras/SibTr.error(SibTr.java:738(Compiled
    Code))
    com/ibm/ws/sib/comms/server/clientsupport/StaticCATHelper.sendAs
    yncExceptionToClient(StaticCATHelper.java:222(Compiled Code))
    com/ibm/ws/sib/comms/server/clientsupport/CATAsynchConsumer.cons
    umeMessacom/ibm/ws/sib/processor/impl/AsynchConsumer.processMsgs
    (AsynchConsumer.com/ibm/ws/sib/processor/impl/RMQLocalConsumerPo
    int.addAsynchMessage(RMQ
    LocalConsumerPoint.java:1769))
    com/ibm/ws/sib/processor/impl/RMQAsynchThread$AsynchRunnable.run
    AsynchConsumer(RMQAsynchThread.java:575)
    com/ibm/ws/sib/processor/impl/RMQAsynchThread$AsynchRunnable.run
    (RMQAsynchThread.java:432)
    com/ibm/ws/util/ThreadPool$Worker.run(ThreadPool.java:1550(Compi
    led...)
    
    This thread is stuck in an infinite loop that started because
    of an exception from the WMQ Queue Manager.
    

Problem conclusion

  • This APAR fixes the problem and allows the thread to finish
    correctly when an exception occurs from the WMQ Queue Manager.
    
    APAR PM19323 is currently targeted for inclusion in
    Service Level (Fix Pack) 7.0.0.13 of WebSphere
    Application Server
    
    Please refer to URL:
    //www.ibm.com/support/docview.wss?rs=404&uid=swg27006970
    for Fix Pack availability.
    

Temporary fix

Comments

APAR Information

  • APAR number

    PM19323

  • Reported component name

    WEBSPHERE FOR Z

  • Reported component ID

    5655I3500

  • Reported release

    700

  • Status

    CLOSED PER

  • PE

    NoPE

  • HIPER

    NoHIPER

  • Special Attention

    NoSpecatt

  • Submitted date

    2010-07-28

  • Closed date

    2010-09-14

  • Last modified date

    2010-11-03

  • 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

    WEBSPHERE FOR Z

  • Fixed component ID

    5655I3500

Applicable component levels

  • R700 PSY UK61146

       UP10/10/21 P F010

Fix is available

  • Select the PTF appropriate for your component level. You will be required to sign in. Distribution on physical media is not available in all countries.

[{"Business Unit":{"code":"BU053","label":"Cloud & Data Platform"},"Product":{"code":"SS7K4U","label":"WebSphere Application Server for z\/OS"},"Platform":[{"code":"PF025","label":"Platform Independent"}],"Version":"7.0","Line of Business":{"code":"LOB45","label":"Automation"}}]

Document Information

Modified date:
24 October 2021