"Could not start JMX connector server" error ...

[Tim Darr]

I am getting an exception related to JMX connection on version 2.7 on Windows 7, running Java 8 when I run ddf.bat.

Any suggestions?

[Jeff Vettraino]

Hi Tim,

Can you post the complete exception? Is it possible that the jmx port is already in use by another server (or process)?  The port and up settings are in the etc/org.apache.karaf.management.cfg file.

Jeff

On Jul 15, 2015 1:57 PM, "Tim Darr" <tdar...@gmail.com> wrote:

I am getting an exception related to JMX connection on version 2.7 on Windows 7, running Java 8 when I run ddf.bat.

Any suggestions?

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[Mark]

I've run into problems when the configuration files list "0.0.0.0", and its not a valid IP to connect to.  I usually end up defining a "real" IP address in the etc/org.apache.karaf.management.cfg file.

[Michael Menousek]

0.0.0.0 means to listen on all interfaces.  If you enter an IP there it will only bind to that interface.  I do find it odd that behavior would change when you enter an IP there.

Michael

--

[Mark]

I don't see it on the bind side, its the JMX client connection side where I experience errors.  By entering an actual IP address, the exceptions go away.

[Michael Menousek]

Ah well that sounds like a problem!  Would you have any issues with us using localhost out of the box?  I assume that'd work.

Thanks,

Michael

[Mark]

That sounds fine with me.  Although "localhost" has become a bad word with me, regarding the PKI/SSL setup problems I've been having :)

Thanks,

Mark

[Tim Darr]

Exception in thread "JMX Connector Thread [service:jmx:rmi://0.0.0.0:44444/jndi/rmi://0.0.0.0:1099/karaf-root]" java.lang.RuntimeException: Could not start JMX connector server

at org.apache.karaf.management.ConnectorServerFactory$1.run(ConnectorServerFactory.java:248)

Caused by: java.io.IOException: Cannot bind to URL [rmi://0.0.0.0:1099/karaf-root]: javax.naming.CommunicationException [Root exception is java.rmi.ConnectIOException: Exception creating connection to: 0.0.0.0; nested exception is: 

java.net.SocketException: Permission denied: connect]

at javax.management.remote.rmi.RMIConnectorServer.newIOException(RMIConnectorServer.java:826)

at javax.management.remote.rmi.RMIConnectorServer.start(RMIConnectorServer.java:431)

at org.apache.karaf.management.ConnectorServerFactory$1.run(ConnectorServerFactory.java:235)

Caused by: javax.naming.CommunicationException [Root exception is java.rmi.ConnectIOException: Exception creating connection to: 0.0.0.0; nested exception is: 

java.net.SocketException: Permission denied: connect]

at com.sun.jndi.rmi.registry.RegistryContext.bind(RegistryContext.java:143)

at com.sun.jndi.toolkit.url.GenericURLContext.bind(GenericURLContext.java:226)

at javax.naming.InitialContext.bind(InitialContext.java:419)

at javax.management.remote.rmi.RMIConnectorServer.bind(RMIConnectorServer.java:643)

at javax.management.remote.rmi.RMIConnectorServer.start(RMIConnectorServer.java:426)

... 1 more

Caused by: java.rmi.ConnectIOException: Exception creating connection to: 0.0.0.0; nested exception is: 

java.net.SocketException: Permission denied: connect

at sun.rmi.transport.tcp.TCPEndpoint.newSocket(TCPEndpoint.java:631)

at sun.rmi.transport.tcp.TCPChannel.createConnection(TCPChannel.java:216)

at sun.rmi.transport.tcp.TCPChannel.newConnection(TCPChannel.java:202)

at sun.rmi.server.UnicastRef.newCall(UnicastRef.java:341)

at sun.rmi.registry.RegistryImpl_Stub.bind(Unknown Source)

at com.sun.jndi.rmi.registry.RegistryContext.bind(RegistryContext.java:137)

... 5 more

Caused by: java.net.SocketException: Permission denied: connect

at java.net.DualStackPlainSocketImpl.connect0(Native Method)

at java.net.DualStackPlainSocketImpl.socketConnect(DualStackPlainSocketImpl.java:79)

at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:339)

at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:198)

at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:182)

at java.net.PlainSocketImpl.connect(PlainSocketImpl.java:172)

at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392)

at java.net.Socket.connect(Socket.java:579)

at java.net.Socket.connect(Socket.java:528)

at java.net.Socket.<init>(Socket.java:425)

at java.net.Socket.<init>(Socket.java:208)

at sun.rmi.transport.proxy.RMIDirectSocketFactory.createSocket(RMIDirectSocketFactory.java:40)

at sun.rmi.transport.proxy.RMIMasterSocketFactory.createSocket(RMIMasterSocketFactory.java:147)

at sun.rmi.transport.tcp.TCPEndpoint.newSocket(TCPEndpoint.java:613)

... 10 more

[Tim Darr]

Changing to localhost worked for me.