afedulov commented on a change in pull request #11195: [FLINK-16222][runtime] 
Use plugins mechanism for initializing MetricReporters
URL: https://github.com/apache/flink/pull/11195#discussion_r386604078
 
 

 ##########
 File path: 
flink-runtime/src/main/java/org/apache/flink/runtime/metrics/ReporterSetup.java
 ##########
 @@ -120,55 +124,37 @@ public static ReporterSetup forReporter(String 
reporterName, MetricConfig metric
        }
 
        private static ReporterSetup createReporterSetup(String reporterName, 
MetricConfig metricConfig, MetricReporter reporter) {
-               LOG.info("Configuring {} with {}.", reporterName, metricConfig);
+               LOG.debug("Configuring {} with {}.", reporterName, 
metricConfig);
 
 Review comment:
   Good point. I am not 100% sure about it - do we have a Flink-wide way to 
handle such cases? I guess the cleanest approach would be to have a special set 
of keys that are considered sensitive, which have to be obfuscated prior to 
logging. Seeing which other config values are used during the initialization 
could be generally pretty useful for debugging. 

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