UnknownHostException from application client

Troubleshooting

Problem

A WebSphere Application client is unable to connect to a WebSphere Application Server when trying to do a JNDI lookup of an EJB. The root exception is java.net.UnknownHostException.

Symptom

Trace from the Application Server:

1292951558 at host myHost.company.com >> org.omg.CORBA.COMM_FAILURE: vmcid: 0x49421000 minor code: 40 completed: No
at com.ibm.ws.runtime.workloadcontroller.OrbWorkloadRegulator.getException

(OrbWorkloadRegulator.java:814)
at com.ibm.ws.runtime.workloadcontroller.OrbWorkloadRegulator.handleRequest
ForQuiesceRequestedMode(OrbWorkloadRegulator.java:464)
at com.ibm.ws.runtime.workloadcontroller.OrbWorkloadRegulator.handleRequest

(OrbWorkloadRegulator.java:348)
at com.ibm.ws.runtime.workloadcontroller.
OrbWorkloadRequestInterceptor.receive_request

(OrbWorkloadRequestInterceptor.java:44)
at com.ibm.rmi.pi.InterceptorManager.iterateReceiveRequest

(InterceptorManager.java:748)

In an ORB trace
orbtrc.txt:
13:59:07.063 com.ibm.ws.orbimpl.transport.WSTCPTransportConnection createSocket:635 P=545782:O=0:CT ORBRas[default] createSocket

(String host, int port, InetAddress localInetAddress) is not implemented by this transport. Ignoring the value localInetAddress=localhost/127.0.0.1

13:59:09.327 com.ibm.ws.orbimpl.transport.WSTCPTransportConnection connect:467 P=545782:O=0:CT ORBRas[default] java.net.UnknownHostException: myHost
at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:176)
at java.net.Socket.connect(Socket.java:459)
at java.net.Socket.connect(Socket.java:409)
at java.net.Socket.<init>(Socket.java:315)

[{"Product":{"code":"SSEQTP","label":"WebSphere Application Server"},"Business Unit":{"code":"BU048","label":"IBM Software"},"Component":"Application Client","Platform":[{"code":"PF002","label":"AIX"},{"code":"PF010","label":"HP-UX"},{"code":"PF012","label":"IBM i"},{"code":"PF016","label":"Linux"},{"code":"PF027","label":"Solaris"},{"code":"PF033","label":"Windows"}],"Version":"9.0;8.5.5;8.0;7.0","Edition":"Edition Independent","Line of Business":{"code":"LOB77","label":"Automation Platform"}},{"Product":{"code":"SSNVBF","label":"Runtimes for Java Technology"},"Business Unit":{"code":"BU054","label":"Systems w\/TPS"},"Component":"Java SDK","Platform":[{"code":"","label":""}],"Version":"","Edition":"","Line of Business":{"code":"LOB08","label":"Cognitive Systems"}},{"Product":{"code":"SS7K4U","label":"WebSphere Application Server for z\/OS"},"Business Unit":{"code":"BU048","label":"IBM Software"},"Component":" ","Platform":[{"code":"PF035","label":"z\/OS"}],"Version":"7.0","Edition":"","Line of Business":{"code":"LOB77","label":"Automation Platform"}}]

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Historical Number

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Document Information

More support for:
WebSphere Application Server

Software version:
9.0, 8.5.5, 8.0, 7.0

Operating system(s):
AIX, HP-UX, IBM i, Linux, Solaris, Windows

Document number:
338047

Modified date:
03 March 2025

UID

swg21198886

IBM Support

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