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

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

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

• The fix for this APAR is currently targeted for inclusion in
  fix pack 8.5.5.17 and 9.0.5.2.  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 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

• R850 PSY

     UP

• R900 PSY

     UP