Github user diginoise commented on the pull request:
https://github.com/apache/storm/commit/96da31ed0068dde3b4309ee417382be5084ce941#commitcomment-17367854
Please note that making the logger name as
`org.apache.storm.metric.LoggingMetricsConsumer` will cause the logger created
within this class (using class' name) to actually use ROOT logger, instead of
this logger, and the metrics entries are being logged into the standard OUT log
of each worker.
One must create a separate logger outside of `org.apache.storm.*`
hierarchy, i.e. the name cannot use the fully qualified name of the class where
logging is happening from.
Calling it say `METRICS_LOGGER` and then creating it by calling
`LoggerFactory.getLogger("METRICS_LOG")` inside `LoggingMetricsConsumer` would
prevent log entries appearing in the logs governed by the ROOT logger.
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