Intermittent CORBA Error "A remote host refused an attempted connect"
 Technote (troubleshooting)
 
Problem(Abstract)
During times of heavy load, the following error is received in the SystemOut.log: "A remote host refused an attempted connect with a minor code of 4942F301".
 
Cause
One possible cause is that the com.ibm.CORBA.ServerSocketQueueDepth setting is too small and might issue to the SystemOut.log during heavy load.
 
Resolving the problem
Stack Trace:


<Error ErrorCode="javax.naming.NamingException"
ErrorDescription="Error description not available" ErrorRelatedMoreInfo="">
<Attribute Name="ErrorCode" Value="javax.naming.NamingException"/>

<Attribute Name="ErrorDescription" Value="Error description not available"/>
<Error ErrorCode="javax.naming.NamingException"
ErrorDescription="" ErrorRelatedMoreInfo="Error during resolve">
<Stack>javax.naming.NamingException: Error during resolve.
Root exception is org.omg.CORBA.TRANSIENT: A remote host refused an attempted connect operation.:host=nbaxa048,port=45361  minor code: 4942F301

Please refer to the WebSphere Application Server Information Center topic, Object Request Broker service settings that can be added to the administrative console for more information about the following properties:

  • com.ibm.CORBA.ServerSocketQueueDepth
  • com.ibm.CORBA.ShortExceptionDetails
The default is 50. A value of at least 200 is recommended if you experience intermittent, refused connections. If you change to 200 and still experience this problem, but not as often, you might need to increase it again until you no longer see the error. This is a tunable parameter and needs to be tweaked to fit your particular load.

This problem is likely to appear during times of heavy load.
 
 
Cross Reference information
Segment Product Component Platform Version Edition
Application Servers Runtimes for Java Technology Java SDK
 
 


Document Information


Product categories: Software > Application Servers > Distributed Application & Web Servers > WebSphere Application Server > Object Request Broker (ORB)
Operating system(s): Windows
Software version: 6.1
Software edition:
Reference #: 1197105
IBM Group: Software Group
Modified date: Jan 31, 2005