im using ccm to learn some cassandra, im trying to use ccm node1 nodetool status and run into this error:
Traceback (most recent call last): File "/usr/local/Cellar/ccm/3.1.4_1/libexec/bin/ccm", line 105, in cmd.run() File "/usr/local/Cellar/ccm/3.1.4_1/libexec/lib/python3.7/site-packages/ccmlib/cmds/node_cmds.py", line 233, in run stdout, stderr, rc = self.node.nodetool(" ".join(self.args[1:])) File "/usr/local/Cellar/ccm/3.1.4_1/libexec/lib/python3.7/site-packages/ccmlib/node.py", line 812, in nodetool return handle_external_tool_process(p, ['nodetool', '-h', 'localhost', '-p', str(self.jmx_port)] + cmd.split()) File "/usr/local/Cellar/ccm/3.1.4_1/libexec/lib/python3.7/site-packages/ccmlib/node.py", line 2072, in handle_external_tool_process raise ToolError(cmd_args, rc, out, err) ccmlib.node.ToolError: Subprocess ['nodetool', '-h', 'localhost', '-p', '7100', 'status'] exited with non-zero status; exit status: 3; stderr: Error connecting to remote JMX agent! java.rmi.ConnectIOException: Exception creating connection to: 10.1.8.166; nested exception is: java.net.SocketException: Network is unreachable (connect failed) 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.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.$Proxy0.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) at org.apache.cassandra.tools.NodeProbe.connect(NodeProbe.java:150) at org.apache.cassandra.tools.NodeProbe.(NodeProbe.java:120) at org.apache.cassandra.tools.NodeCmd.main(NodeCmd.java:1185) Caused by: java.net.SocketException: Network is unreachable (connect failed) 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.(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) ... 12 more
solved, probably something went wrong with the connection because earlier i was fidgeting with a python application to connect to my cluster with datastax's driver.
a quick restart of the cluster solved the problem.