Zhilong Hong created FLINK-14065:
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Summary: 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
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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