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From Maki Watanabe <watanabe.m...@gmail.com>
Subject Re: Error connection to remote JMX agent! on nodetool
Date Wed, 23 Mar 2011 01:43:16 GMT
How do you define your Keyspace?
As you may know, in Cassandra, replication (factor) is defined as the
attribute of Keyspace.
And what do you mean:
> However replication never happened.
> I can't get data I set at other node.

What did you do on cassandra, and what did you get in response?

maki


2011/3/23 kondo@vivinavi.com <kondo@vivinavi.com>:
> 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" <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 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 0.0.0.0:* LISTEN
>> tcp 0 0 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
>> 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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