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https://issues.apache.org/jira/browse/FLINK-4831?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16136531#comment-16136531
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Chesnay Schepler commented on FLINK-4831:
-----------------------------------------
The relevant interfaces are the {{Metric}} classes, {{MetricReporter}}
+{{Scheduled}} and {{MetricGroup}}. You can also take a look at other reporter
implementations in Flink, and the metrics documentation
https://ci.apache.org/projects/flink/flink-docs-release-1.4/monitoring/metrics.html.
> Implement a slf4j metric reporter
> ---------------------------------
>
> Key: FLINK-4831
> URL: https://issues.apache.org/jira/browse/FLINK-4831
> Project: Flink
> Issue Type: Improvement
> Components: Metrics
> Affects Versions: 1.1.2
> Reporter: Chesnay Schepler
> Assignee: Sumit Sarin
> Priority: Minor
> Labels: easyfix, starter
>
> For debugging purpose it would be very useful to have a log4j metric
> reporter. If you don't want to setup a metric backend you currently have to
> rely on JMX, which a) works a bit differently than other reporters (for
> example it doesn't extend AbstractReporter) and b) makes it a bit tricky to
> analyze results as metrics are cleaned up once a job finishes.
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