Cache coordination in weblogic using RMI - problems

[Prashanth Talapala]

Hi all,
I am trying to create a small ejb app which uses EclipseLink as its JPA provider and am trying to do cache coordination of the EclipseLink cache using RMI. When I try to run a standalone program using rmiregistry and rmi://localhost:1099 things work fine for me. I am able to start several instances of the program and do cache coordination. however, when I try to do this in weblogic the application runs but I dont get any cache coordination messages in the log. I get the following exception:

EL Warning: 2008.12.02 17:14:05.969--ServerSession(11247912)--Thread(ThreadThread-19,5,Pooled Threads)--Exception
EclipseLink-22102 (Eclipse Persistence Services - 1.0.1 (Build 20080905)): org.eclipse.persistence.exceptions.RemoteCommandManagerException
Exception Description: Could not post connection in local naming service under name rmi://10.178.139.99:7001/a02f39ea-6aa4-4108-bb50-d69f8cb48be7
Internal Exception: java.rmi.ConnectIOException: error during JRMP connection establishment; nested exception is:
java.io.EOFException
Exception in thread "Thread-19" Local Exception Stack:
Exception EclipseLink-22102 (Eclipse Persistence Services - 1.0.1 (Build 20080905)): org.eclipse.persistence.exceptions.RemoteCommandManagerException
Exception Description: Could not post connection in local naming service under name rmi://10.178.139.99:7001/a02f39ea-6aa4-4108-bb50-d69f8cb48be7
Internal Exception: java.rmi.ConnectIOException: error during JRMP connection establishment; nested exception is:
java.io.EOFException
at org.eclipse.persistence.exceptions.RemoteCommandManagerException.errorBindingConnection(RemoteCommandManagerException.java:87)
at org.eclipse.persistence.sessions.coordination.rmi.RMITransportManager.createLocalConnectionInRegistry(RMITransportManager.java:172)
at org.eclipse.persistence.sessions.coordination.rmi.RMITransportManager.createLocalConnection(RMITransportManager.java:125)
at org.eclipse.persistence.sessions.coordination.DiscoveryManager.run(DiscoveryManager.java:197)
at java.lang.Thread.run(Thread.java:619)
Caused by: java.rmi.ConnectIOException: error during JRMP connection establishment; nested exception is:
java.io.EOFException
at sun.rmi.transport.tcp.TCPChannel.createConnection(TCPChannel.java:286)
at sun.rmi.transport.tcp.TCPChannel.newConnection(TCPChannel.java:184)
at sun.rmi.server.UnicastRef.newCall(UnicastRef.java:322)
at sun.rmi.registry.RegistryImpl_Stub.rebind(Unknown Source)
at java.rmi.Naming.rebind(Naming.java:160)
at org.eclipse.persistence.sessions.coordination.rmi.RMITransportManager.createLocalConnectionInRegistry(RMITransportManager.java:169)
... 3 more
Caused by: java.io.EOFException
at java.io.DataInputStream.readByte(DataInputStream.java:250)
at sun.rmi.transport.tcp.TCPChannel.createConnection(TCPChannel.java:228)
... 8 more

This exception comes a couple of seconds after I run the query and get the results. Any help in solving this problem would be very helpful.

Thanks in advance,
Prashanth.

--

Prashanth Talapala | Senior Staff Engineer
Oracle Communications Global Business Unit

ORACLE India | Building No. 8, Raheja Mindspace, Madhapur | 500081 Hyderabad

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Prashanth Talapala wrote:

Hi all,
I am trying to create a small ejb app which uses EclipseLink as its JPA provider and am trying to do cache coordination of the EclipseLink cache using RMI. When I try to run a standalone program using rmiregistry and rmi://localhost:1099 things work fine for me. I am able to start several instances of the program and do cache coordination. however, when I try to do this in weblogic the application runs but I dont get any cache coordination messages in the log. I get the following exception:

EL Warning: 2008.12.02 17:14:05.969--ServerSession(11247912)--Thread(ThreadThread-19,5,Pooled Threads)--Exception
EclipseLink-22102 (Eclipse Persistence Services - 1.0.1 (Build 20080905)): org.eclipse.persistence.exceptions.RemoteCommandManagerException
Exception Description: Could not post connection in local naming service under name rmi://10.178.139.99:7001/a02f39ea-6aa4-4108-bb50-d69f8cb48be7
Internal Exception: java.rmi.ConnectIOException: error during JRMP connection establishment; nested exception is:
java.io.EOFException
Exception in thread "Thread-19" Local Exception Stack:
Exception EclipseLink-22102 (Eclipse Persistence Services - 1.0.1 (Build 20080905)): org.eclipse.persistence.exceptions.RemoteCommandManagerException
Exception Description: Could not post connection in local naming service under name rmi://10.178.139.99:7001/a02f39ea-6aa4-4108-bb50-d69f8cb48be7
Internal Exception: java.rmi.ConnectIOException: error during JRMP connection establishment; nested exception is:
java.io.EOFException
at org.eclipse.persistence.exceptions.RemoteCommandManagerException.errorBindingConnection(RemoteCommandManagerException.java:87)
at org.eclipse.persistence.sessions.coordination.rmi.RMITransportManager.createLocalConnectionInRegistry(RMITransportManager.java:172)
at org.eclipse.persistence.sessions.coordination.rmi.RMITransportManager.createLocalConnection(RMITransportManager.java:125)
at org.eclipse.persistence.sessions.coordination.DiscoveryManager.run(DiscoveryManager.java:197)
at java.lang.Thread.run(Thread.java:619)
Caused by: java.rmi.ConnectIOException: error during JRMP connection establishment; nested exception is:
java.io.EOFException
at sun.rmi.transport.tcp.TCPChannel.createConnection(TCPChannel.java:286)
at sun.rmi.transport.tcp.TCPChannel.newConnection(TCPChannel.java:184)
at sun.rmi.server.UnicastRef.newCall(UnicastRef.java:322)
at sun.rmi.registry.RegistryImpl_Stub.rebind(Unknown Source)
at java.rmi.Naming.rebind(Naming.java:160)
at org.eclipse.persistence.sessions.coordination.rmi.RMITransportManager.createLocalConnectionInRegistry(RMITransportManager.java:169)
... 3 more
Caused by: java.io.EOFException
at java.io.DataInputStream.readByte(DataInputStream.java:250)
at sun.rmi.transport.tcp.TCPChannel.createConnection(TCPChannel.java:228)
... 8 more

This exception comes a couple of seconds after I run the query and get the results. Any help in solving this problem would be very helpful.

Thanks in advance,
Prashanth.