Cassandra nodetool: Connection refused to host: 172.24.0.10
When i am using Cassandra's nodetool to see the ring of a remote host (use IP address), it gives following error, how to make this work? BTW - I can ping that host using IP address.
root@ServerA:~/cassandra# bin/nodetool -h 172.24.0.10 ring Error connecting to remote JMX agent! java.rmi.ConnectException: Connection refused to host: 127.0.1.1; 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.Unicast开发者_JS百科Ref.invoke(UnicastRef.java:128) at javax.management.remote.rmi.RMIServerImpl_Stub.newClient(Unknown Source) at javax.management.remote.rmi.RMIConnector.getConnection(RMIConnector.java:2343) at javax.management.remote.rmi.RMIConnector.connect(RMIConnector.java:296) at javax.management.remote.JMXConnectorFactory.connect(JMXConnectorFactory.java:267) at org.apache.cassandra.tools.NodeProbe.connect(NodeProbe.java:106) at org.apache.cassandra.tools.NodeProbe.(NodeProbe.java:82) at org.apache.cassandra.tools.NodeCmd.main(NodeCmd.java:405) Caused by: java.net.ConnectException: Connection refused at java.net.PlainSocketImpl.socketConnect(Native Method) at java.net.AbstractPlainSocketImpl.doConnect(AbstractPlainSocketImpl.java:310) at java.net.AbstractPlainSocketImpl.connectToAddress(AbstractPlainSocketImpl.java:176) at java.net.AbstractPlainSocketImpl.connect(AbstractPlainSocketImpl.java:163) at java.net.SocksSocketImpl.connect(SocksSocketImpl.java:384) at java.net.Socket.connect(Socket.java:546) at java.net.Socket.connect(Socket.java:495) at java.net.Socket.(Socket.java:392) at java.net.Socket.(Socket.java:206) at sun.rmi.transport.proxy.RMIDirectSocketFactory.createSocket(RMIDirectSocketFactory.java:40) at sun.rmi.transport.proxy.RMIMasterSocketFactory.createSocket(RMIMasterSocketFactory.java:146) at sun.rmi.transport.tcp.TCPEndpoint.newSocket(TCPEndpoint.java:613) ... 10 more
You need to enable remote JMX:
To enable monitoring and management from remote systems, set this system property when you start the JVM: com.sun.management.jmxremote.port=portNum
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