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https://issues.apache.org/jira/browse/HDFS-14495?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16942022#comment-16942022
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Brahma Reddy Battula commented on HDFS-14495:
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IMO, we can gohead this change with only trunk,as this wn't look good to have
duplicate values..?
{quote}Not sure what the guideline is for JMX, etc.
{quote}
Refernce of [JMX
Compatiability|https://hadoop.apache.org/docs/stable/hadoop-project-dist/hadoop-common/Compatibility.html#Metrics.2FJMX]
> RBF: Duplicate FederationRPCMetrics
> -----------------------------------
>
> Key: HDFS-14495
> URL: https://issues.apache.org/jira/browse/HDFS-14495
> Project: Hadoop HDFS
> Issue Type: Sub-task
> Components: metrics
> Reporter: Akira Ajisaka
> Assignee: hemanthboyina
> Priority: Major
>
> There are two FederationRPCMetrics displayed in Web UI (http://<dfsrouter
> hostname>:<port>/jmx) and most of the metrics are the same.
> * FederationRPCMetrics via {{@Metrics}} and {{@Metric}} annotations
> * FederationRPCMetrics via registering FederationRPCMBean
> Can we remove {{@Metrics}} and {{@Metric}} annotations to remove duplication?
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