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Posted to commits@cassandra.apache.org by "Eduard Tudenhoefner (JIRA)" <ji...@apache.org> on 2016/11/02 10:10:58 UTC

[jira] [Comment Edited] (CASSANDRA-12869) Don't load mx4j beans twice

    [ https://issues.apache.org/jira/browse/CASSANDRA-12869?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15628223#comment-15628223 ] 

Eduard Tudenhoefner edited comment on CASSANDRA-12869 at 11/2/16 10:10 AM:
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[~snazy] could you review https://github.com/apache/cassandra/pull/80 / https://github.com/apache/cassandra/pull/81 please?

Alternatively, here are the branches:
* [cassandra-3.X|https://github.com/nastra/cassandra/tree/12869-3.X]
* [trunk|https://github.com/nastra/cassandra/tree/12869-trunk]


was (Author: eduard.tudenhoefner):
[~snazy] could you review https://github.com/apache/cassandra/pull/80 / https://github.com/apache/cassandra/pull/81 please?

> Don't load mx4j beans twice
> ---------------------------
>
>                 Key: CASSANDRA-12869
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-12869
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Core
>            Reporter: Eduard Tudenhoefner
>            Assignee: Eduard Tudenhoefner
>
> This happens on *cassandra-3.X* and *trunk* because there are two calls to {{Mx4jTool.maybeLoad()}}. I think this was an unintentional side-effect of merging CASSANDRA-12274
> upstream.
> {code}
> WARN  [main] 2016-11-02 09:07:09,294 Mx4jTool.java:72 - Could not start register mbean in JMX
> javax.management.InstanceAlreadyExistsException: system:name=http
> 	at com.sun.jmx.mbeanserver.Repository.addMBean(Repository.java:437) ~[na:1.8.0_91]
> 	at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.registerWithRepository(DefaultMBeanServerInterceptor.java:1898) ~[na:1.8.0_91]
> 	at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.registerDynamicMBean(DefaultMBeanServerInterceptor.java:966) ~[na:1.8.0_91]
> 	at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.registerObject(DefaultMBeanServerInterceptor.java:900) ~[na:1.8.0_91]
> 	at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.registerMBean(DefaultMBeanServerInterceptor.java:324) ~[na:1.8.0_91]
> 	at com.sun.jmx.mbeanserver.JmxMBeanServer.registerMBean(JmxMBeanServer.java:522) ~[na:1.8.0_91]
> 	at org.apache.cassandra.utils.Mx4jTool.maybeLoad(Mx4jTool.java:55) ~[main/:na]
> 	at org.apache.cassandra.service.CassandraDaemon.setup(CassandraDaemon.java:414) [main/:na]
> 	at org.apache.cassandra.service.CassandraDaemon.activate(CassandraDaemon.java:603) [main/:na]
> 	at org.apache.cassandra.service.CassandraDaemon.main(CassandraDaemon.java:737) [main/:na]
> {code}



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