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From "Suresh Srinivas (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-8118) Print the stack trace of InstanceAlreadyExistsException in trace level
Date Wed, 29 Feb 2012 03:22:08 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-8118?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13218870#comment-13218870
] 

Suresh Srinivas commented on HADOOP-8118:
-----------------------------------------

+1 for the change. Gets rid of annoying log messages.
                
> Print the stack trace of InstanceAlreadyExistsException in trace level
> ----------------------------------------------------------------------
>
>                 Key: HADOOP-8118
>                 URL: https://issues.apache.org/jira/browse/HADOOP-8118
>             Project: Hadoop Common
>          Issue Type: Improvement
>          Components: metrics
>            Reporter: Tsz Wo (Nicholas), SZE
>            Assignee: Tsz Wo (Nicholas), SZE
>            Priority: Minor
>         Attachments: c8118_20120228.patch
>
>
> There are many InstanceAlreadyExistsException stack traces in the unit tests output like
below.
> {noformat}
> javax.management.InstanceAlreadyExistsException: Hadoop:service=NameNode,name=NameNodeInfo
> 	at com.sun.jmx.mbeanserver.Repository.addMBean(Repository.java:453)
> 	at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.internal_addObject(DefaultMBeanServerInterceptor.java:1484)
> 	at com.sun.jmx.interceptor.DefaultMBeanServerInterceptor.registerDynamicMBean(DefaultMBeanServerInterceptor.java:963)
> 	...
> {noformat}

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