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https://issues.apache.org/jira/browse/FLINK-14065?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16929049#comment-16929049
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Till Rohrmann commented on FLINK-14065:
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Sounds good to me. I've assigned you to the issue [~Thesharing].
> Log metric name when the metric fails on registration/unregistration
> --------------------------------------------------------------------
>
> Key: FLINK-14065
> URL: https://issues.apache.org/jira/browse/FLINK-14065
> Project: Flink
> Issue Type: Improvement
> Components: Runtime / Metrics
> Affects Versions: 1.9.0
> Reporter: Zhilong Hong
> Priority: Trivial
> Labels: easyfix
> Fix For: 1.10.0
>
>
> When MetricGroup registers Metrics in MetricRegistryImpl, sometimes the
> registration fails due to exceptions. However, currently it only logs
> "{{Error while registering metric}}" with no more information, which is
> inconvenient for users to troubleshoot which metric fails and why it fails.
> Also, the warning log in registration and unregistration are both "{{Error
> while registering metric}}". This will lead users to confusion (although
> users can locate the correct place according to the call stack).
> So I propose to log metric name when the metrics fails on
> registration/unregistration.
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