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https://issues.apache.org/jira/browse/YARN-11599?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17779410#comment-17779410
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ASF GitHub Bot commented on YARN-11599:
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zuston commented on PR #6220:
URL: https://github.com/apache/hadoop/pull/6220#issuecomment-1778792664
PTAL @slfan1989
> Incorrect log4j properties file in SLS sample conf
> --------------------------------------------------
>
> Key: YARN-11599
> URL: https://issues.apache.org/jira/browse/YARN-11599
> Project: Hadoop YARN
> Issue Type: Bug
> Reporter: Junfan Zhang
> Priority: Major
> Labels: pull-request-available
>
> https://github.com/apache/hadoop/blob/trunk/hadoop-tools/hadoop-sls/src/main/sample-conf/log4j.properties
>
> log4j.appender.test=org.apache.log4j.ConsoleAppender
> log4j.appender.test.Target=System.out
> log4j.appender.test.layout=org.apache.log4j.PatternLayout
> log4j.appender.test.layout.ConversionPattern=%d\{ABSOLUTE} %5p %c\{1}:%L -
> %m%n
> log4j.logger=NONE, test
>
> This is invalid in current log4j version, if applied this, the test
> performance will be slow!
>
> I think the warn level is enough and required. The level < warn will effect
> performance
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