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https://issues.apache.org/jira/browse/HADOOP-18631?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17691888#comment-17691888
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ASF GitHub Bot commented on HADOOP-18631:
-----------------------------------------
virajjasani commented on code in PR #5418:
URL: https://github.com/apache/hadoop/pull/5418#discussion_r1113770486
##########
hadoop-hdfs-project/hadoop-hdfs/src/test/resources/log4j.properties:
##########
@@ -49,4 +56,24 @@ log4j.appender.DNMETRICSRFA.MaxBackupIndex=1
log4j.appender.DNMETRICSRFA.MaxFileSize=64MB
# Supress KMS error log
-log4j.logger.com.sun.jersey.server.wadl.generators.WadlGeneratorJAXBGrammarGenerator=OFF
\ No newline at end of file
+log4j.logger.com.sun.jersey.server.wadl.generators.WadlGeneratorJAXBGrammarGenerator=OFF
+
+#
+# hdfs audit logging
+#
+
+# TODO : log4j2 properties to provide example for using Async appender with
other appenders
+hdfs.audit.logger=INFO,ASYNCAPPENDER,RFAAUDIT
+hdfs.audit.log.maxfilesize=256MB
+hdfs.audit.log.maxbackupindex=20
+log4j.logger.org.apache.hadoop.hdfs.server.namenode.FSNamesystem.audit=${hdfs.audit.logger}
+log4j.additivity.org.apache.hadoop.hdfs.server.namenode.FSNamesystem.audit=false
+log4j.appender.RFAAUDIT=org.apache.log4j.RollingFileAppender
+log4j.appender.RFAAUDIT.File=${hadoop.log.dir}/hdfs-audit.log
+log4j.appender.RFAAUDIT.layout=org.apache.log4j.PatternLayout
+log4j.appender.RFAAUDIT.layout.ConversionPattern=%m%n
+log4j.appender.RFAAUDIT.MaxFileSize=${hdfs.audit.log.maxfilesize}
+log4j.appender.RFAAUDIT.MaxBackupIndex=${hdfs.audit.log.maxbackupindex}
+log4j.appender.ASYNCAPPENDER=org.apache.log4j.AsyncAppender
Review Comment:
In fact, this is the reason why i have added some TODO comments with this
patch as we anyways need to rework on async appender config as part of log4j2
properties. This TODO will help to use appender ref within AsyncAppender in
log4j2.properties. Once that work is complete, this TODO also needs to be
removed as part of it.
> Migrate Async appenders to log4j properties
> -------------------------------------------
>
> Key: HADOOP-18631
> URL: https://issues.apache.org/jira/browse/HADOOP-18631
> Project: Hadoop Common
> Issue Type: Sub-task
> Reporter: Viraj Jasani
> Assignee: Viraj Jasani
> Priority: Major
> Labels: pull-request-available
>
> Before we can upgrade to log4j2, we need to migrate async appenders that we
> add "dynamically in the code" to the log4j.properties file. Instead of using
> core/hdfs site configs, log4j properties or system properties should be used
> to determine if the given logger should use async appender.
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