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https://issues.apache.org/jira/browse/STORM-1767?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Jungtaek Lim updated STORM-1767:
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Fix Version/s: (was: 2.0.0)
(was: 1.0.0)
> metrics log entries are being appended to root log
> --------------------------------------------------
>
> Key: STORM-1767
> URL: https://issues.apache.org/jira/browse/STORM-1767
> Project: Apache Storm
> Issue Type: Bug
> Components: storm-core
> Affects Versions: 1.0.0, 2.0.0
> Reporter: Daniel Drozdzewski
> Labels: easyfix
>
> Current setup of metrics logger ( {{storm/log4j2/worker.xml}}) uses fully
> qualified name of the class where the logging is happening from i.e
> `org.apache.storm.metric.LoggingMetricsConsumer`, which is problematic and
> does not achieve the original intent as stated by the METRICS appender
> defined in {{storm/log4j2/worker.xml}}.
> Currently the metrics logger created explicitly by using the name above:
> {{LoggerFactory.getLogger("org.apache.storm.metric.LoggingMetricsConsumer")}}
> or implicitly from within the {{LoggingMetricsConsumer}} by calling
> {{LoggerFactory.getLogger(LoggingMetricsConsumer.class)}} will be logging to
> **root** logger.
> This happens because logger names use Java namespaces and as such create
> hierarchies.
> The solution is to name metrics logger outside of {{org.apache.storm.*}}
> namespace which is what is happening for all other non-root loggers defined
> within the {{storm/log4j2/worker.xml}} file.
> This will also mean a code change to {{LoggingMetricsConsumer}} class itself
> for it to use the logger with an explicit name matching the name defined in
> the {{worker.xml}} file.
> The fix is easy.
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