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https://issues.apache.org/jira/browse/SPARK-31633?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Dongjoon Hyun updated SPARK-31633:
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Description:
SLF4J 1.7.23+ is required to enable `slf4j-log4j12` with MDC feature to run
under Java 9. Also, this will bring all latest bug fixes.
- http://www.slf4j.org/news.html
{quote}When running under Java 9, log4j version 1.2.x is unable to correctly
parse the "java.version" system property. Assuming an inccorect Java version,
it proceeded to disable its MDC functionality. The slf4j-log4j12 module
shipping in this release fixes the issue by tweaking MDC internals by
reflection, allowing log4j to run under Java 9. See also SLF4J-393.
Fixed issue EventRecodingLogger not saving marker data in the event. This issue
was reported in SLF4J-379 by Manish Soni with Jonas Neukomm providing the
relevant PR.
The slf4j-simple module now uses the latest reference to System.out or
System.err. In previous releases the reference was set at the beginning and
re-used. This change fixes SLF4J-389 reported by Igor Polevoy.{quote}
> Upgrade SLF4J from 1.7.16 to 1.7.30
> -----------------------------------
>
> Key: SPARK-31633
> URL: https://issues.apache.org/jira/browse/SPARK-31633
> Project: Spark
> Issue Type: Bug
> Components: Build
> Affects Versions: 3.0.0
> Reporter: Dongjoon Hyun
> Priority: Major
>
> SLF4J 1.7.23+ is required to enable `slf4j-log4j12` with MDC feature to run
> under Java 9. Also, this will bring all latest bug fixes.
> - http://www.slf4j.org/news.html
> {quote}When running under Java 9, log4j version 1.2.x is unable to correctly
> parse the "java.version" system property. Assuming an inccorect Java version,
> it proceeded to disable its MDC functionality. The slf4j-log4j12 module
> shipping in this release fixes the issue by tweaking MDC internals by
> reflection, allowing log4j to run under Java 9. See also SLF4J-393.
> Fixed issue EventRecodingLogger not saving marker data in the event. This
> issue was reported in SLF4J-379 by Manish Soni with Jonas Neukomm providing
> the relevant PR.
> The slf4j-simple module now uses the latest reference to System.out or
> System.err. In previous releases the reference was set at the beginning and
> re-used. This change fixes SLF4J-389 reported by Igor Polevoy.{quote}
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