István Fajth created HADOOP-18409:
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Summary: 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
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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