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https://issues.apache.org/jira/browse/CASSANDRA-12454?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15555225#comment-15555225
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Alex Petrov edited comment on CASSANDRA-12454 at 10/11/16 8:43 AM:
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+1 for the patch. 

I know the change is harmless but to exclude human error (like imports or some 
other minor thing), I've still triggered a CI. Hope you don't mind:

|[trunk|https://github.com/ifesdjeen/cassandra/tree/12454-trunk]|[dtest|https://cassci.datastax.com/view/Dev/view/ifesdjeen/job/ifesdjeen-12454-trunk-dtest/]|[utest|https://cassci.datastax.com/view/Dev/view/ifesdjeen/job/ifesdjeen-12454-trunk-testall/]|



was (Author: ifesdjeen):
+1 for the patch. 

I know the change is harmless but to exclude human error (like imports or some 
other minor thing), I've still triggered a CI. Hope you don't mind:

|[trunk|https://github.com/ifesdjeen/cassandra/tree/12454-trunk]|[dtest|https://cassci.datastax.com/view/Dev/view/ifesdjeen/job/ifesdjeen-12454-trunk-testall/]|[utest|https://cassci.datastax.com/view/Dev/view/ifesdjeen/job/ifesdjeen-12454-trunk-testall/]|


> Unable to start on IPv6-only node with local JMX
> ------------------------------------------------
>
>                 Key: CASSANDRA-12454
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-12454
>             Project: Cassandra
>          Issue Type: Bug
>         Environment: Ubuntu Trusty, Oracle JDK 1.8.0_102-b14, IPv6-only host
>            Reporter: Vadim Tsesko
>            Assignee: Sam Tunnicliffe
>             Fix For: 3.x
>
>
> A Cassandra node using *default* configuration is unable to start on 
> *IPv6-only* machine with the following error message:
> {code}
> ERROR [main] 2016-08-13 14:38:07,309 CassandraDaemon.java:731 - Bad URL path: 
> :0:0:0:0:0:1/jndi/rmi://0:0:0:0:0:0:0:1:7199/jmxrmi
> {code}
> The problem might be located in {{JMXServerUtils.createJMXServer()}} (I am 
> not sure, because there is no stack trace in {{system.log}}):
> {code:java}
> String urlTemplate = "service:jmx:rmi://%1$s/jndi/rmi://%1$s:%2$d/jmxrmi";
> ...
> String url = String.format(urlTemplate, (serverAddress != null ? 
> serverAddress.getHostAddress() : "0.0.0.0"), port);
> {code}
> IPv6 addresses must be surrounded by square brackets when passed to 
> {{JMXServiceURL}}.
> Disabling {{LOCAL_JMX}} mode in {{cassandra-env.sh}} (and enabling JMX 
> authentication) helps.



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