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PH17314: TOO MANY OPEN FILES IN WEBSPHERE V8.5.5 SIBUS MESSAGING ENGINE

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APAR status

  • Closed as program error.

Error description

  • In WebSphere Application Server V8.5.5 a buslink is configured
    between 2 messaging engines. The jvm hosting the remote
    messaging engine is intentionally shutdown. The jvm hosting the
    local messaging engine repeatedly attempts to establish a
    connection to the remote messaging engine to get the buslink
    started. The JMS application that is connected to the local
    messaging engine continuously produces messages to the
    destination over the buslink. This leads to a large number
    of open sockets. When the buslink is stopped the socket count
    drops drastically.
    
    The following errors are logged in the systemout.log:
    
     java.security.PrivilegedActionException: java.io.IOException:
    Too many open files
     at
    java.security.AccessController.doPrivileged(AccessController.jav
    a:707)
     at
    com.ibm.ws.ffdc.impl.FfdcProvider.logIncident(FfdcProvider.java:
    183)
     at
    com.ibm.ws.ffdc.impl.FfdcProvider.logIncident(FfdcProvider.java:
    145)
     at
    com.ibm.ffdc.util.provider.FfdcProvider.log(FfdcProvider.java:30
    0)
     at
    com.ibm.ws.ffdc.impl.FfdcProvider.log(FfdcProvider.java:255)
     at
    com.ibm.ffdc.util.provider.IncidentEntry.log(IncidentEntry.java:
    106)
     at com.ibm.ffdc.util.provider.Ffdc.log(Ffdc.java:95)
     at
    com.ibm.ws.ffdc.FFDCFilter.processException(FFDCFilter.java:128)
     at
    com.ibm.ws.hamanager.coordinator.dcs.HostNameMap.updateAddresses
     (HostNameMap.java:158)
     at
    com.ibm.ws.hamanager.coordinator.dcs.HostNameMapManager$IPRefres
    her.
     alarm(HostNameMapManager.java:134)
     at com.ibm.ejs.util.am._Alarm.runImpl(_Alarm.java:151)
     at com.ibm.ejs.util.am._Alarm.run(_Alarm.java:136)
     at
    com.ibm.ws.util.ThreadPool$Worker.run(ThreadPool.java:1892)
    Caused by: java.io.IOException: Too many open files
     at java.io.File.createTempFile(File.java:2035)
     at
    com.ibm.ws.ffdc.impl.FfdcProvider$1.run(FfdcProvider.java:186)
     at
    com.ibm.ws.ffdc.impl.FfdcProvider$1.run(FfdcProvider.java:184)
     at
    java.security.AccessController.doPrivileged(AccessController.jav
    a:703)
    
    
    CWSIP0291W: An attempt to send a message to exception
    destination
    _SYSTEM.Exception.Destination.XXX.Messaging.000-XXXBus on
    messaging engine XXX.Messaging.000-XXXBus failed due to the
    following :
    com.ibm.ws.sib.processor.exceptions.SIMPLimitExceededException:
    CWSIK0025E: The destination _SYSTEM.Exception.Destination.
    XXX.Messaging.000-XXXBus on messaging engine
    XXX.Messaging.000-XXXBus is
    not available because the high limit for the number of
    messages for this destination has already been reached.
    

Local fix

  • Set the initial state of the buslink to "stopped".
    

Problem summary

  • ****************************************************************
    * USERS AFFECTED:  Users of IBM WebSphere Application          *
    *                  Server Messaging with a busLink             *
    ****************************************************************
    * PROBLEM DESCRIPTION: CWSIP0291W seen when a busLink is       *
    *                      defined.                                *
    ****************************************************************
    * RECOMMENDATION:  Apply the PTF fix.                          *
    ****************************************************************
    Socket leak due to underlying JVM problem.
    

Problem conclusion

Temporary fix

Comments

APAR Information

  • APAR number

    PH17314

  • 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

    2019-09-24

  • Closed date

    2019-12-09

  • Last modified date

    2019-12-09

  • 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 #: PH17314

Modified date: 09 December 2019