Hi all !
I am currently making stress tests. Thereto I wrote a simple client program
that starts (in my current case) 50 threads.
The log I produce looks something like this:
Client-987784556305 starts ...
Client-987784556505 starts ...
Client-987784556786 starts ...
Client-987784556786 is back from EJB-Instantiation after <0.09> sec
Client-987784556305 is back from EJB-Instantiation after <0.581> sec
Client-987784556505 is back from EJB-Instantiation after <0.401> sec
Client-987784556986 starts ...
Client-987784556986 is back from EJB-Instantiation after <0.1> sec
Client-987784557186 starts ...
Client-987784557186 is back from EJB-Instantiation after <0.05> sec
Client-987784557387 starts ...
Client-987784557387 is back from EJB-Instantiation after <0.06> sec
Client-987784557587 starts ...
Client-987784557787 starts ...
Client-987784557787 is back from EJB-Instantiation after <0.191> sec
Client-987784557587 is back from EJB-Instantiation after <0.391> sec
Client-987784557988 starts ...
Client-987784557988 is back from EJB-Instantiation after <0.09> sec
Client-987784558188 starts ...
Client-987784558188 is back from EJB-Instantiation after <0.05> sec
Client-987784558388 starts ...
Client-987784558388 is back from EJB-Instantiation after <0.07> sec
Client-987784558588 starts ...
Client-987784558588 is back from EJB-Instantiation after <0.091> sec
Client-987784556305 is back from startSession after <1.873> sec
Client-987784557186 is back from startSession after <1.523> sec
Client-987784556505 is back from startSession after <1.853> sec
Client-987784556986 is back from startSession after <1.673> sec
Client-987784556786 is back from startSession after <1.873> sec
Client-987784558789 starts ...
Client-987784558989 starts ...
Client-987784559189 starts ...
Client-987784559390 starts ...
Client-987784559590 starts ...
Client-987784559790 starts ...
Client-987784559990 starts ...
Client-987784560191 starts ...
Client-987784560391 starts ...
Client-987784560591 starts ...
Client-987784560792 starts ...
java.rmi.ConnectException: Connection refused to host: rackets; nested
exception
is:
java.net.ConnectException: Connection refused: no further
information
java.net.ConnectException: Connection refused: no further information
at java.net.PlainSocketImpl.socketConnect(Native Method)
at java.net.PlainSocketImpl.doConnect(PlainSocketImpl.java:312)
at
java.net.PlainSocketImpl.connectToAddress(PlainSocketImpl.java:125)
at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:112)
at java.net.Socket.<init>(Socket.java:273)
at java.net.Socket.<init>(Socket.java:100)
at
sun.rmi.transport.proxy.RMIDirectSocketFactory.createSocket(RMIDirect
SocketFactory.java:25)
at
sun.rmi.transport.proxy.RMIMasterSocketFactory.createSocket(RMIMaster
SocketFactory.java:120)
at sun.rmi.transport.tcp.TCPEndpoint.newSocket(TCPEndpoint.java:499)
at
sun.rmi.transport.tcp.TCPChannel.createConnection(TCPChannel.java:190
)
at
sun.rmi.transport.tcp.TCPChannel.newConnection(TCPChannel.java:174)
at sun.rmi.server.UnicastRef.invoke(UnicastRef.java:83)
at
org.jboss.ejb.plugins.jrmp.server.JRMPContainerInvoker_Stub.invokeHom
e(Unknown Source)
at
org.jboss.ejb.plugins.jrmp.interfaces.HomeProxy.invoke(HomeProxy.java
:248)
at $Proxy0.create(Unknown Source)
at bbt.cn.archprot.util.PseudoUseCase.run(PseudoUseCase.java:45)
at java.lang.Thread.run(Thread.java:484)
Client-987784560992 starts ...
Client-987784558789 is back from EJB-Instantiation after <2.213> sec
Client-987784557387 is back from startSession after <3.565> sec
Client-987784558989 is back from EJB-Instantiation after <2.123> sec
Client-987784559390 is back from EJB-Instantiation after <1.722> sec
Client-987784559189 is back from EJB-Instantiation after <1.933> sec
Client-987784561192 starts ...
java.rmi.ConnectException: Connection refused to host: rackets; nested
exception
is:
java.net.ConnectException: Connection refused: no further
information
java.net.ConnectException: Connection refused: no further information
at java.net.PlainSocketImpl.socketConnect(Native Method)
at java.net.PlainSocketImpl.doConnect(PlainSocketImpl.java:312)
at
java.net.PlainSocketImpl.connectToAddress(PlainSocketImpl.java:125)
at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:112)
at java.net.Socket.<init>(Socket.java:273)
at java.net.Socket.<init>(Socket.java:100)
at
sun.rmi.transport.proxy.RMIDirectSocketFactory.createSocket(RMIDirect
SocketFactory.java:25)
at
sun.rmi.transport.proxy.RMIMasterSocketFactory.createSocket(RMIMaster
SocketFactory.java:120)
at sun.rmi.transport.tcp.TCPEndpoint.newSocket(TCPEndpoint.java:499)
at
sun.rmi.transport.tcp.TCPChannel.createConnection(TCPChannel.java:190
)
at
sun.rmi.transport.tcp.TCPChannel.newConnection(TCPChannel.java:174)
at sun.rmi.server.UnicastRef.invoke(UnicastRef.java:83)
at
org.jboss.ejb.plugins.jrmp.server.JRMPContainerInvoker_Stub.invokeHom
e(Unknown Source)
at
org.jboss.ejb.plugins.jrmp.interfaces.HomeProxy.invoke(HomeProxy.java
:248)
at $Proxy0.create(Unknown Source)
at bbt.cn.archprot.util.PseudoUseCase.run(PseudoUseCase.java:45)
at java.lang.Thread.run(Thread.java:484)
Client-987784561392 starts ...
Client-987784559590 is back from EJB-Instantiation after <1.983> sec
Client-987784561593 starts ...
Client-987784558789 is back from startSession after <0.751> sec
Client-987784560591 is back from EJB-Instantiation after <1.172> sec
Client-987784561793 starts ...
Client-987784559790 is back from EJB-Instantiation after <2.023> sec
Client-987784560992 is back from EJB-Instantiation after <0.821> sec
Client-987784561993 starts ...
Client-987784562194 starts ...
Client-987784562394 starts ...
Client-987784560792 is back from EJB-Instantiation after <1.722> sec
Client-987784560191 is back from EJB-Instantiation after <2.323> sec
Client-987784561192 is back from EJB-Instantiation after <1.332> sec
Client-987784561793 is back from EJB-Instantiation after <0.751> sec
Client-987784562594 starts ...
Client-987784562794 starts ...
Client-987784562995 starts ...
Client-987784563195 starts ...
Client-987784561392 is back from EJB-Instantiation after <1.923> sec
Client-987784559189 is back from startSession after <2.223> sec
Client-987784563395 starts ...
Client-987784561593 is back from EJB-Instantiation after <1.832> sec
Client-987784563606 starts ...
Client-987784563796 starts ...
Client-987784563996 starts ...
Client-987784564196 starts ...
Client-987784564397 starts ...
Client-987784564597 starts ...
Client-987784564797 starts ...
Client-987784561993 is back from EJB-Instantiation after <2.914> sec
Client-987784564998 starts ...
Client-987784562394 is back from EJB-Instantiation after <2.744> sec
Client-987784557787 is back from startSession after <7.17> sec
Client-987784557587 is back from startSession after <7.19> sec
Client-987784565198 starts ...
Client-987784565398 starts ...
Client-987784565598 starts ...
Client-987784565799 starts ...
java.rmi.ConnectException: Connection refused to host: rackets; nested
exception
is:
java.net.ConnectException: Connection refused: no further
information
java.net.ConnectException: Connection refused: no further information
at java.net.PlainSocketImpl.socketConnect(Native Method)
at java.net.PlainSocketImpl.doConnect(PlainSocketImpl.java:312)
at
java.net.PlainSocketImpl.connectToAddress(PlainSocketImpl.java:125)
at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:112)
at java.net.Socket.<init>(Socket.java:273)
at java.net.Socket.<init>(Socket.java:100)
at
sun.rmi.transport.proxy.RMIDirectSocketFactory.createSocket(RMIDirect
SocketFactory.java:25)
at
sun.rmi.transport.proxy.RMIMasterSocketFactory.createSocket(RMIMaster
SocketFactory.java:120)
at sun.rmi.transport.tcp.TCPEndpoint.newSocket(TCPEndpoint.java:499)
at
sun.rmi.transport.tcp.TCPChannel.createConnection(TCPChannel.java:190
)
at
sun.rmi.transport.tcp.TCPChannel.newConnection(TCPChannel.java:174)
at sun.rmi.server.UnicastRef.invoke(UnicastRef.java:83)
at
org.jboss.ejb.plugins.jrmp.server.JRMPContainerInvoker_Stub.invokeHom
e(Unknown Source)
at
org.jboss.ejb.plugins.jrmp.interfaces.HomeProxy.invoke(HomeProxy.java
:248)
at $Proxy0.create(Unknown Source)
at bbt.cn.archprot.util.PseudoUseCase.run(PseudoUseCase.java:45)
at java.lang.Thread.run(Thread.java:484)
java.rmi.ConnectException: Connection refused to host: rackets; nested
exception
is:
java.net.ConnectException: Connection refused: no further
information
java.net.ConnectException: Connection refused: no further information
at java.net.PlainSocketImpl.socketConnect(Native Method)
at java.net.PlainSocketImpl.doConnect(PlainSocketImpl.java:312)
at
java.net.PlainSocketImpl.connectToAddress(PlainSocketImpl.java:125)
at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:112)
at java.net.Socket.<init>(Socket.java:273)
at java.net.Socket.<init>(Socket.java:100)
at
sun.rmi.transport.proxy.RMIDirectSocketFactory.createSocket(RMIDirect
SocketFactory.java:25)
at
sun.rmi.transport.proxy.RMIMasterSocketFactory.createSocket(RMIMaster
SocketFactory.java:120)
at sun.rmi.transport.tcp.TCPEndpoint.newSocket(TCPEndpoint.java:499)
at
sun.rmi.transport.tcp.TCPChannel.createConnection(TCPChannel.java:190
)
at
sun.rmi.transport.tcp.TCPChannel.newConnection(TCPChannel.java:174)
at sun.rmi.server.UnicastRef.invoke(UnicastRef.java:83)
at
org.jboss.ejb.plugins.jrmp.server.JRMPContainerInvoker_Stub.invokeHom
e(Unknown Source)
at
org.jboss.ejb.plugins.jrmp.interfaces.HomeProxy.invoke(HomeProxy.java
:248)
at $Proxy0.create(Unknown Source)
at bbt.cn.archprot.util.PseudoUseCase.run(PseudoUseCase.java:45)
at java.lang.Thread.run(Thread.java:484)
Client-987784565999 starts ...
Client-987784562194 is back from EJB-Instantiation after <3.905> sec
Client-987784560792 is back from startSession after <3.585> sec
Client-987784560191 is back from startSession after <3.615> sec
Client-987784566199 starts ...
Client-987784562594 is back from EJB-Instantiation after <3.906> sec
java.rmi.ConnectException: Connection refused to host: rackets; nested
exception
is:
java.net.ConnectException: Connection refused: no further
information
java.net.ConnectException: Connection refused: no further information
at java.net.PlainSocketImpl.socketConnect(Native Method)
at java.net.PlainSocketImpl.doConnect(PlainSocketImpl.java:312)
at
java.net.PlainSocketImpl.connectToAddress(PlainSocketImpl.java:125)
at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:112)
at java.net.Socket.<init>(Socket.java:273)
at java.net.Socket.<init>(Socket.java:100)
at
sun.rmi.transport.proxy.RMIDirectSocketFactory.createSocket(RMIDirect
SocketFactory.java:25)
at
sun.rmi.transport.proxy.RMIMasterSocketFactory.createSocket(RMIMaster
SocketFactory.java:120)
at sun.rmi.transport.tcp.TCPEndpoint.newSocket(TCPEndpoint.java:499)
at
sun.rmi.transport.tcp.TCPChannel.createConnection(TCPChannel.java:190
)
at
sun.rmi.transport.tcp.TCPChannel.newConnection(TCPChannel.java:174)
at sun.rmi.server.UnicastRef.invoke(UnicastRef.java:83)
at
org.jboss.ejb.plugins.jrmp.server.JRMPContainerInvoker_Stub.invokeHom
e(Unknown Source)
at
org.jboss.ejb.plugins.jrmp.interfaces.HomeProxy.invoke(HomeProxy.java
:248)
at $Proxy0.create(Unknown Source)
at bbt.cn.archprot.util.PseudoUseCase.run(PseudoUseCase.java:45)
at java.lang.Thread.run(Thread.java:484)
java.rmi.ConnectException: Connection refused to host: rackets; nested
exception
is:
java.net.ConnectException: Connection refused: no further
information
java.net.ConnectException: Connection refused: no further information
at java.net.PlainSocketImpl.socketConnect(Native Method)
at java.net.PlainSocketImpl.doConnect(PlainSocketImpl.java:312)
at
java.net.PlainSocketImpl.connectToAddress(PlainSocketImpl.java:125)
at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:112)
at java.net.Socket.<init>(Socket.java:273)
at java.net.Socket.<init>(Socket.java:100)
at
sun.rmi.transport.proxy.RMIDirectSocketFactory.createSocket(RMIDirect
SocketFactory.java:25)
at
sun.rmi.transport.proxy.RMIMasterSocketFactory.createSocket(RMIMaster
SocketFactory.java:120)
at sun.rmi.transport.tcp.TCPEndpoint.newSocket(TCPEndpoint.java:499)
at
sun.rmi.transport.tcp.TCPChannel.createConnection(TCPChannel.java:190
)
at
sun.rmi.transport.tcp.TCPChannel.newConnection(TCPChannel.java:174)
at sun.rmi.server.UnicastRef.invoke(UnicastRef.java:83)
at
org.jboss.ejb.plugins.jrmp.server.JRMPContainerInvoker_Stub.invokeHom
e(Unknown Source)
at
org.jboss.ejb.plugins.jrmp.interfaces.HomeProxy.invoke(HomeProxy.java
:248)
at $Proxy0.create(Unknown Source)
at bbt.cn.archprot.util.PseudoUseCase.run(PseudoUseCase.java:45)
at java.lang.Thread.run(Thread.java:484)
java.rmi.ConnectException: Connection refused to host: rackets; nested
exception
is:
java.net.ConnectException: Connection refused: no further
information
java.net.ConnectException: Connection refused: no further information
at java.net.PlainSocketImpl.socketConnect(Native Method)
at java.net.PlainSocketImpl.doConnect(PlainSocketImpl.java:312)
at
java.net.PlainSocketImpl.connectToAddress(PlainSocketImpl.java:125)
at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:112)
at java.net.Socket.<init>(Socket.java:273)
at java.net.Socket.<init>(Socket.java:100)
at
sun.rmi.transport.proxy.RMIDirectSocketFactory.createSocket(RMIDirect
SocketFactory.java:25)
at
sun.rmi.transport.proxy.RMIMasterSocketFactory.createSocket(RMIMaster
SocketFactory.java:120)
at sun.rmi.transport.tcp.TCPEndpoint.newSocket(TCPEndpoint.java:499)
at
sun.rmi.transport.tcp.TCPChannel.createConnection(TCPChannel.java:190
)
at
sun.rmi.transport.tcp.TCPChannel.newConnection(TCPChannel.java:174)
at sun.rmi.server.UnicastRef.invoke(UnicastRef.java:83)
at
org.jboss.ejb.plugins.jrmp.server.JRMPContainerInvoker_Stub.invokeHom
e(Unknown Source)
at
org.jboss.ejb.plugins.jrmp.interfaces.HomeProxy.invoke(HomeProxy.java
:248)
at $Proxy0.create(Unknown Source)
at bbt.cn.archprot.util.PseudoUseCase.run(PseudoUseCase.java:45)
at java.lang.Thread.run(Thread.java:484)
I don't understand, why some threads cannot make an ejb create (respective
why the java.rmi.ConnectExceptions happen).
And ... the count of java.rmi.ConnectExceptions is always different (budges
between 0 and n).
Does anybody has an idea, why this java.rmi.ConnectExceptions occur (and why
sometimes not) ?
If you need more information, please notice me, what kind of more
information you need.
Best regards,
Roman Wittchen
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