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From Nate McCall <n...@thelastpickle.com>
Subject Re: nodetool -h <hostname or ip> fails Connection refused
Date Wed, 20 Apr 2016 15:05:39 GMT
You need to set LOCAL_JMX=false

It will then read the rest of this stanza:
https://github.com/apache/cassandra/blob/cassandra-2.2/conf/cassandra-env.sh#L284-L288

Using the defaults above as-is, you will need to add JMX authentication.
Details are here:
https://docs.datastax.com/en/cassandra/2.2/cassandra/configuration/secureNodetoolSSL.html

A lot of this can be controlled with system properties as well:
http://docs.oracle.com/javase/8/docs/technotes/guides/management/agent.html

The default config files for JMX authentication and access included in the
JVM also have extensive details in the comments:
$JAVA_HOME/jre/lib/management/jmxremote.access
$JAVA_HOME/jre/lib/management/jmxremote.password.template



On Tue, Apr 19, 2016 at 8:40 PM, Alaa Zubaidi (PDF) <alaa.zubaidi@pdf.com>
wrote:

> Hi,
>
> I am trying to run nodetool remotely. but its not working:
> I am running Cassandra 2.2.5 on CentOS 6.
> listen_address: is set to <host IP>
> rpc_address: is set to 0.0.0.0
> broadcast_rpc_address: is set to <host IP>
>
> I changed the following in cassadnra-env.sh
> JVM_OPTS="$JVM_OPTS -Djava.rmi.server.hostname=<hostname>"
> -Dcom.sun.management.jmxremote.port=7199
> -Dcom.sun.management.jmxremote.ssl=false
> -Dcom.sun.management.jmxremote.authenticate=false
>
> "nodetool -h <hostname or ip> -p <port> status" results in:
> failed to connect to 'hostname' - Connection Exception: 'Connection
> refused"
>
> netstat -nl | grep 7199
> tcp    0    0    127.0.0.1:7199    0.0.0.0:*    LISTEN
>
> ONLY "nodetool -h localhost" works
>
> Any idea how to fix it?
>
> Thanks,
> Alaa
>
>
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-- 
-----------------
Nate McCall
Austin, TX
@zznate

Co-Founder & Sr. Technical Consultant
Apache Cassandra Consulting
http://www.thelastpickle.com

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