I am trying to submit a Samza job to yarn and I get a error:

Exception in thread "main" java.io.IOException: Cannot bind to URL
[rmi://localhost:44960/jmxrmi]: javax.naming.ServiceUnavailableException
[Root exception is java.rmi.ConnectException: Connection refused to host:
localhost; nested exception is:

        java.net.ConnectException: Connection refused]

        at
javax.management.remote.rmi.RMIConnectorServer.newIOException(RMIConnectorServer.java:827)

        at
javax.management.remote.rmi.RMIConnectorServer.start(RMIConnectorServer.java:432)

        at org.apache.samza.metrics.JmxServer.<init>(JmxServer.scala:89)

        at org.apache.samza.metrics.JmxServer.<init>(JmxServer.scala:43)

        at
org.apache.samza.job.yarn.SamzaAppMaster$.main(SamzaAppMaster.scala:87)

        at
org.apache.samza.job.yarn.SamzaAppMaster.main(SamzaAppMaster.scala)

Caused by: javax.naming.ServiceUnavailableException [Root exception is
java.rmi.ConnectException: Connection refused to host: localhost; nested
exception is:

        java.net.ConnectException: Connection refused]

        at
com.sun.jndi.rmi.registry.RegistryContext.bind(RegistryContext.java:147)

        at
com.sun.jndi.toolkit.url.GenericURLContext.bind(GenericURLContext.java:228)

        at javax.naming.InitialContext.bind(InitialContext.java:425)

        at
javax.management.remote.rmi.RMIConnectorServer.bind(RMIConnectorServer.java:644)

        at
javax.management.remote.rmi.RMIConnectorServer.start(RMIConnectorServer.java:427)

        ... 4 more

Caused by: java.rmi.ConnectException: Connection refused to host:
localhost; nested exception is:

        java.net.ConnectException: Connection refused

        at sun.rmi.transport.tcp.TCPEndpoint.newSocket(TCPEndpoint.java:619)

        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:342)

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

        at
com.sun.jndi.rmi.registry.RegistryContext.bind(RegistryContext.java:141)

        ... 8 more

Caused by: java.net.ConnectException: Connection refused

        at java.net.PlainSocketImpl.socketConnect(Native Method)

        at
java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:350)

        at
java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:206)

        at
java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:188)

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

        at java.net.Socket.connect(Socket.java:589)

        at java.net.Socket.connect(Socket.java:538)

        at java.net.Socket.<init>(Socket.java:434)

        at java.net.Socket.<init>(Socket.java:211)

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

        at
sun.rmi.transport.proxy.RMIMasterSocketFactory.createSocket(RMIMasterSocketFactory.java:148)

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

        ... 13 more

Any idea on what could be the issue?

- Shekar

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