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From "kondo@vivinavi.com" <ko...@vivinavi.com>
Subject Re: Error connection to remote JMX agent! on nodetool
Date Tue, 22 Mar 2011 22:50:57 GMT
Hi Sasha
Thank you so much for your advice.
I changed JMX_PORT from 10036 to 8080 in cassandra-env.sh.
Now nodetool ring is working as following.

# nodetool --host **.**.254.54 ring
Address         Status   State     Load            Owns        Token
                                                                                         
  31247585259092561925693111230676487333
**.**.254.53    Up     Normal  51.3 KB         84.50%     
4871825541058236750403047111542070004
**.**.254.54    Up     Normal  66.71 KB       15.50%     
31247585259092561925693111230676487333

Then it seems I could set data to other node by Cassandra-cli --host 
other node IP --port 9160.(Currently only 2 nodes)
However replication never happened.
I can't get data I set at other node.
I don't know what's wrong.
(I thought replication starts when cassandra -p restart)
Please advice me how to do to start replication.
Thank you for your advice in advance.


(2011/03/18 23:38), Sasha Dolgy wrote:
>
> You need to specify the -jmxport with nodetool
>
> On Mar 19, 2011 2:48 AM, "kondo@vivinavi.com 
> <mailto:kondo@vivinavi.com>" <kondo@vivinavi.com 
> <mailto:kondo@vivinavi.com>> wrote:
> > Hi everyone
> >
> > I am still new to Cassandra, Thrift.
> > But anyway Cassandra 0.7.4, Thrift 0.5.0 are working on java 1.6.0.18 of
> > Debian 5.0.7.at <http://5.0.7.at> single node.
> > Then I had to try and check multi node on 2 servers.
> > (JVM_PORT=10036 on /etc/cassandra-env.sh)
> > I modified /etc/cassandra/cassandra.yaml as following.
> > auto_bootstrap:false ->true
> > seeds: -127.0.0.1 -> add Global IP addres of 2 servers(incl.own server)
> > listen_address:localhost -> Own Global IP address(or own host name on
> > /etc/hosts)
> > rpc_address:localhost ->0.0.0.0
> > I run master server and then slave server.
> > netstat -nl is as following. on both servers.
> > Proto Recv-Q Send-Q Local Address Foreign Address State
> > tcp 0 0 0.0.0.0:9160 <http://0.0.0.0:9160> 0.0.0.0:* LISTEN
> > tcp 0 0 0.0.0.0:10036 <http://0.0.0.0:10036> 0.0.0.0:* LISTEN
> > tcp 0 0 **.**.**.**:7000 0.0.0.0:* LISTEN
> >
> > However it seems Cassandra doesn't work.
> > Because I can't get any data from Cluster (always null, data is broken?)
> > So I checked the nodetool (nodetool --host IP ring).
> > The nodetool had errors as following.
> > 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 don't know how to do.
> > Please advise what am I wrong.
> > And please let me know how to delete or re-build cluster.
> > Because I can't even set data or make new column family currently on
> > Cassandra-Cli.
> > Thank you for your help in advance.
> >
> > --
> > *************************
> > Mamoru Kondo
> > Vivid Navigation,Inc.
> > http://www.vivinavi.com
> > kondo@vivinavi.com <mailto:kondo@vivinavi.com>
> > Office:310-326-2900
> > Fax:310-257-0051
> > *************************
> >


-- 
*************************
Mamoru Kondo
Vivid Navigation,Inc.
http://www.vivinavi.com
kondo@vivinavi.com
Office:310-326-2900
Fax:310-257-0051
*************************


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