Github user greghogan commented on a diff in the pull request:
https://github.com/apache/flink/pull/5099#discussion_r155620220
--- Diff:
flink-runtime/src/main/java/org/apache/flink/runtime/metrics/MetricRegistryConfiguration.java
---
@@ -108,15 +118,36 @@ public static MetricRegistryConfiguration
fromConfiguration(Configuration config
delim = '.';
}
- final String definedReporters =
configuration.getString(MetricOptions.REPORTERS_LIST);
+ Set<String> includedReporters =
reporterListPattern.splitAsStream(configuration.getString(MetricOptions.REPORTERS_LIST,
""))
+ .collect(Collectors.toSet());
+
+ // use a TreeSet to make the reporter order deterministic,
which is useful for testing
+ Set<String> namedReporters = new TreeSet<>(String::compareTo);
+ // scan entire configuration for "metric.reporter" keys and
parse individual reporter configurations
+ for (String key : configuration.keySet()) {
+ if
(key.startsWith(ConfigConstants.METRICS_REPORTER_PREFIX)) {
+ Matcher matcher =
reporterClassPattern.matcher(key);
+ if (matcher.matches()) {
+ String reporterName = matcher.group(1);
+ if (includedReporters.isEmpty() ||
includedReporters.contains(reporterName)) {
+ if
(namedReporters.contains(reporterName)) {
+ LOG.warn("Duplicate
class configuration detected for reporter {}.", reporterName);
+ } else {
+
namedReporters.add(reporterName);
+ }
+ } else {
+ LOG.info("Excluding reporter
{}.", reporterName);
--- End diff --
Log the reason for excluding the reporter (not in the reporters list)?
---
