syhily commented on a change in pull request #18816:
URL: https://github.com/apache/flink/pull/18816#discussion_r840254164
##########
File path:
flink-metrics/flink-metrics-core/src/main/java/org/apache/flink/metrics/groups/UnregisteredMetricsGroup.java
##########
@@ -178,4 +182,35 @@ public T getValue() {
return null;
}
}
+
+ private static class UnregisteredSinkWriterMetricGroup extends
UnregisteredMetricsGroup
Review comment:
Why we need this implementation?
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