Failed to connect to service:jmx:rmi

[githubkevinyou]

2019-07-31 14:10:52,311 - [ERROR] k.m.j.KafkaJMX$ - Failed to connect to service:jmx:rmi:///jndi/rmi://10.1.10.121:9999/jmxrmi java.rmi.UnknownHostException: Unknown host: vl010001137165; nested exception is: java.net.UnknownHostException: vl010001137165 at sun.rmi.transport.tcp.TCPEndpoint.newSocket(TCPEndpoint.java:616) 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.invoke(UnicastRef.java:129) at java.rmi.server.RemoteObjectInvocationHandler.invokeRemoteMethod(RemoteObjectInvocationHandler.java:227) at java.rmi.server.RemoteObjectInvocationHandler.invoke(RemoteObjectInvocationHandler.java:179) at com.sun.proxy.$Proxy5.newClient(Unknown Source) at javax.management.remote.rmi.RMIConnector.getConnection(RMIConnector.java:2430) at javax.management.remote.rmi.RMIConnector.connect(RMIConnector.java:308) at javax.management.remote.JMXConnectorFactory.connect(JMXConnectorFactory.java:270) Caused by: java.net.UnknownHostException: vl010001137165 at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:392) at java.net.Socket.connect(Socket.java:589) at java.net.Socket.connect(Socket.java:538) at java.net.Socket.(Socket.java:434) at java.net.Socket.(Socket.java:211) at sun.rmi.transport.proxy.RMIDirectSocketFactory.createSocket(RMIDirectSocketFactory.java:40) at sun.rmi.transport.proxy.RMIMasterSocketFactory.createSocket(RMIMasterSocketFactory.java:148) at sun.rmi.transport.tcp.TCPEndpoint.newSocket(TCPEndpoint.java:613) at sun.rmi.transport.tcp.TCPChannel.createConnection(TCPChannel.java:216) 2019-07-31 14:10:52,312 - [ERROR] k.m.a.c.BrokerViewCacheActor - Failed to get broker metrics for BrokerIdentity(2,10.1.10.121,9999,false,true,Map(PLAINTEXT -> 9092)) java.rmi.UnknownHostException: Unknown host: 10.1.10.121; nested exception is: java.net.UnknownHostException: 10.1.10.121 at sun.rmi.transport.tcp.TCPEndpoint.newSocket(TCPEndpoint.java:616) at sun.rmi.transport.tcp.TCPChannel.createConnection(TCPChannel.java:216) at sun.rmi.transport.tcp.TCPChannel.newConnection(TCPChannel.java:202) at sun.rmi.server.UnicastRef.invoke(UnicastRef.java:129) at java.rmi.server.RemoteObjectInvocationHandler.invokeRemoteMethod(RemoteObjectInvocationHandler.java:227) at java.rmi.server.RemoteObjectInvocationHandler.invoke(RemoteObjectInvocationHandler.java:179) at com.sun.proxy.$Proxy5.newClient(Unknown Source) at javax.management.remote.rmi.RMIConnector.getConnection(RMIConnector.java:2430) at javax.management.remote.rmi.RMIConnector.connect(RMIConnector.java:308) at javax.management.remote.JMXConnectorFactory.connect(JMXConnectorFactory.java:270) Caused by: java.net.UnknownHostException: 10.1.10.121 at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:184) 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.(Socket.java:434) at java.net.Socket.(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) at sun.rmi.transport.tcp.TCPChannel.createConnection(TCPChannel.java:216) 开启防火墙systemctl start firewall就会报错,而且添加例外端口firewall-cmd --permanent --zone=public --add-port=9999/tcp,也一样出错；关闭防火墙systemctl stop firewalld就没问题。

[kengrary]

-Dcom.sun.management.jmxremote.rmi.port=9999 添加这个到启动参数试试

[funkol2007]

I have meet similary problem：

My settings are as follows: JMX_PORT='23311' KAFKA_JMX_OPTS='-Dcom.sun.management.jmxremote -Dcom.sun.management.jmxremote.authenticate=false -Dcom.sun.management.jmxremote.ssl=false -Djava.rmi.server.hostname=10.122.100.206 -Dcom.sun.management.jmxremote.rmi.port=23311'