Github user NicoK commented on a diff in the pull request:
https://github.com/apache/flink/pull/4110#discussion_r126443494
--- Diff:
flink-metrics/flink-metrics-statsd/src/main/java/org/apache/flink/metrics/statsd/StatsDReporter.java
---
@@ -193,7 +198,10 @@ private void send(final String name, final String
value) {
@Override
public String filterCharacters(String input) {
char[] chars = null;
- final int strLen = input.length();
+ if (input.length() > maxComponentLength) {
+ log.warn("The metric name component {} exceeded the {}
characters length limit and was truncated.", input, maxComponentLength);
+ }
+ final int strLen = Math.min(input.length(), maxComponentLength);
--- End diff --
same here about the `Math.min`
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