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https://issues.apache.org/jira/browse/FLINK-20735?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17260923#comment-17260923
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zlzhang0122 commented on FLINK-20735:
-------------------------------------
I agree with you [~trohrmann] , on yarn session-cluster mode, this is not so
easy doable indeed and maybe MDC is a choice, on per-job-cluster mode this
maybe relatively easy.
> Support configurable log level
> ------------------------------
>
> Key: FLINK-20735
> URL: https://issues.apache.org/jira/browse/FLINK-20735
> Project: Flink
> Issue Type: Improvement
> Components: Runtime / Coordination
> Affects Versions: 1.12.0
> Reporter: zlzhang0122
> Priority: Major
> Fix For: 1.13.0
>
>
> Now the default log level of flink is "INFO" and if we want to change the
> default log level, we have to change that in many log file and this may
> affect all the jobs using these config, I think we can expose a log level
> config for users to change the default log level for every single job.And if
> users don't provide the config value, the default log level won't be changed.
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