Github user NicoK commented on a diff in the pull request:
https://github.com/apache/flink/pull/4110#discussion_r126442516
--- Diff:
flink-metrics/flink-metrics-dropwizard/src/main/java/org/apache/flink/dropwizard/ScheduledDropwizardReporter.java
---
@@ -184,7 +188,10 @@ public void notifyOfRemovedMetric(Metric metric,
String metricName, MetricGroup
@Override
public String filterCharacters(String metricName) {
char[] chars = null;
- final int strLen = metricName.length();
+ if (metricName.length() > maxComponentLength) {
+ log.warn("The metric name component {} exceeded the {}
characters length limit and was truncated.", metricName, maxComponentLength);
+ }
+ final int strLen = Math.min(metricName.length(),
maxComponentLength);
--- End diff --
You actually don't need to call `Math.min()` anymore after you already
checked the condition for the warning message. You could thus assign `strLen`
yourself.
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