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https://issues.apache.org/jira/browse/HADOOP-18409?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17584303#comment-17584303
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Szabolcs Gál commented on HADOOP-18409:
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[~weichiu] could you add me as a Hadoop contributor? I'd like to work on this
jira.
> Support @Metric annotation on String fields similarly as with methods
> returning String
> --------------------------------------------------------------------------------------
>
> Key: HADOOP-18409
> URL: https://issues.apache.org/jira/browse/HADOOP-18409
> Project: Hadoop Common
> Issue Type: Improvement
> Components: metrics
> Reporter: István Fajth
> Assignee: István Fajth
> Priority: Major
>
> In the Metrics2 framework, if a method is annotated with Metric annotation,
> and if it returns a String, then the String is understood as a TAG.
> A field that is annotated with the Metric annotation on the other hand is not
> understood as a tag, even if the type of the annotation is set to
> Metric.Type.TAG, and gets ignored if the field type is String.
> It would be great if Metric annotated String fields would have the same
> default behaviour as Metric annotated methods that return String value.
> This has come up as part of HDDS-7120 (discussion is in the PR for that
> ticket).
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