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https://issues.apache.org/jira/browse/FLINK-18829?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17171466#comment-17171466
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Robert Metzger commented on FLINK-18829:
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As part of this work or as a follow up, we could also add an end to end test
running Flink with logback. This would ensure that our users can configure a
custom logging backend themselves.
> Remove logback-related codepaths and configuration file
> -------------------------------------------------------
>
> Key: FLINK-18829
> URL: https://issues.apache.org/jira/browse/FLINK-18829
> Project: Flink
> Issue Type: Task
> Components: Deployment / Scripts, Runtime / Coordination
> Reporter: Robert Metzger
> Priority: Major
> Labels: starter
>
> Flink currently (1.12-SNAPSHOT) provides support for two logging backends:
> Log4j2 (default) and logback.
> The logback support is not really covered by our testing, and there's little
> evidence of widespread use.
> Users can use a custom logging backend (as long as it's supported by slf4j)
> by providing the appropriate configuration files and jars in the classpath of
> all Flink services. Therefore, we should remove the logback-related files and
> codepaths in Flink and let our users set things up themselves.
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