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https://issues.apache.org/jira/browse/HADOOP-18206?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17682229#comment-17682229
 ] 

ASF GitHub Bot commented on HADOOP-18206:
-----------------------------------------

virajjasani commented on code in PR #5315:
URL: https://github.com/apache/hadoop/pull/5315#discussion_r1090989404


##########
hadoop-hdfs-project/hadoop-hdfs/src/main/java/org/apache/hadoop/hdfs/server/namenode/FSNamesystem.java:
##########
@@ -8853,16 +8849,12 @@ public void logAuditEvent(boolean succeeded, String 
userName,
     }
 
     public void logAuditMessage(String message) {
-      auditLog.info(message);
+      AUDIT_LOG.info(message);
     }
   }
 
   private static void enableAsyncAuditLog(Configuration conf) {
-    if (!(auditLog instanceof Log4JLogger)) {

Review Comment:
   I agree for this patch, but we do have sub-tasks coming up that would:
   
   - Move dynamic log4j appenders to log4j.properties and let users update 
log4j.properties rather than let the code use log4j appenders
   - Replace LOG4J references from production code to SLF4J
   
   Also, if downstream application excludes log4j references, hdfs would not 
work because in order for hdfs to add dynamic appenders, it needs log4j in the 
classpath at least.
   And these references are on the server side only.





> Cleanup the commons-logging references in the code base
> -------------------------------------------------------
>
>                 Key: HADOOP-18206
>                 URL: https://issues.apache.org/jira/browse/HADOOP-18206
>             Project: Hadoop Common
>          Issue Type: Sub-task
>            Reporter: Duo Zhang
>            Assignee: Viraj Jasani
>            Priority: Major
>              Labels: pull-request-available
>
> Should always use slf4j



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