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https://issues.apache.org/jira/browse/FLINK-14812?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16982522#comment-16982522
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Andrey Zagrebin commented on FLINK-14812:
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I would be also in favour of a general env variable pointing to additional libs
like _CLASSPATH_ADDITIONAL_JARS_, just not specifically for the metrics.
> Add metric libs to Flink classpath with an environment variable.
> ----------------------------------------------------------------
>
> Key: FLINK-14812
> URL: https://issues.apache.org/jira/browse/FLINK-14812
> Project: Flink
> Issue Type: New Feature
> Components: Deployment / Kubernetes, Deployment / Scripts
> Reporter: Eui Heo
> Priority: Major
> Labels: pull-request-available
> Time Spent: 20m
> Remaining Estimate: 0h
>
> To use the Flink metric lib you need to add it to the flink classpath. The
> documentation explains to put the jar file in the lib path.
> https://ci.apache.org/projects/flink/flink-docs-stable/monitoring/metrics.html#prometheus-orgapacheflinkmetricsprometheusprometheusreporter
> However, to deploy metric-enabled Flinks on a kubernetes cluster, we have the
> burden of creating and managing another container image. It would be more
> efficient to add the classpath using environment variables inside the
> constructFlinkClassPath function in the config.sh file.
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