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From Jonathan Ellis <jbel...@gmail.com>
Subject Re: Error connection to remote JMX agent
Date Sat, 09 Apr 2011 18:01:16 GMT
from cassandra-env.sh:

# add this if you're having trouble connecting:
# JVM_OPTS="$JVM_OPTS -Djava.rmi.server.hostname=<public name>"
#
# see
# http://blogs.sun.com/jmxetc/entry/troubleshooting_connection_problems_in_jconsole
# for more on configuring JMX through firewalls, etc. (Short version:
# get it working with no firewall first.)


On Fri, Apr 8, 2011 at 6:17 PM, Mengchen Yu <yumeng@umail.iu.edu> wrote:
> I use version 0.7.4, I've done something like this:
> 1. I ssh to my Eucalyptus account and applied 1 instance, got a public
> IP and a internal IP.
> 2. I scp the tar ball of apache-cassandra-0.7.4-bin.tar.gz to root of
> my instance, unzip it and create directories
> 3. I run /bin/cassandra -f, everything is fine.
> 4 I run cassandra-cli in another terminal (on the same instance), link
> to localhost, everything is fine.
> 5 I run nodetools -h <MY PUBLIC IP> ring, when I hit enter, the
> machine became idle, there is no feedback.
> 6 So I run nodetools -h <MY INTERNAL IP> ring, I got a very long error:
>
> Error connection to remote JMX agent!
> java.io.IOException: Failed to retrieve RMIServer stub:
> javax.naming.ServiceUnavailableException [Root exception is
> java.rmi.ConnectException: Connection refused to host: **.**.**.**;
> nested exception is:
> java.net.ConnectException: Connection refused]
> at javax.management.remote.rmi.RMIConnector.connect(RMIConnector.java:342)
> at
> javax.management.remote.JMXConnectorFactory.connect(JMXConnectorFactory.java:267)
> at org.apache.cassandra.tools.NodeProbe.connect(NodeProbe.java:137)
> at org.apache.cassandra.tools.NodeProbe.<init>(NodeProbe.java:107)
> at org.apache.cassandra.tools.NodeCmd.main(NodeCmd.java:511)
> Caused by: javax.naming.ServiceUnavailableException [Root exception is
> java.rmi.ConnectException: Connection refused to host: **.**.**.**;
> nested exception is:
> java.net.ConnectException: Connection refused]
> at
> com.sun.jndi.rmi.registry.RegistryContext.lookup(RegistryContext.java:118)
> at
> com.sun.jndi.toolkit.url.GenericURLContext.lookup(GenericURLContext.java:203)
> at javax.naming.InitialContext.lookup(InitialContext.java:409)
> at
> javax.management.remote.rmi.RMIConnector.findRMIServerJNDI(RMIConnector.java:1902)
> at
> javax.management.remote.rmi.RMIConnector.findRMIServer(RMIConnector.java:1871)
> at javax.management.remote.rmi.RMIConnector.connect(RMIConnector.java:276)
> ... 4 more
> Caused by: java.rmi.ConnectException: Connection refused to host:
> **.**.**.**; 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:340)
> at sun.rmi.registry.RegistryImpl_Stub.lookup(Unknown Source)
> at
> com.sun.jndi.rmi.registry.RegistryContext.lookup(RegistryContext.java:114)
> ... 9 more
> 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.<init>(Socket.java:392)
> at java.net.Socket.<init>(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)
> ... 14 more
>
> I have seen a topic about similar nodetool error, but my JMX_PORT is
> already 8080.
> Thanks in advance.
>
> Mengchen Yu
>



-- 
Jonathan Ellis
Project Chair, Apache Cassandra
co-founder of DataStax, the source for professional Cassandra support
http://www.datastax.com

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