[jira] [Commented] (HDFS-16750) NameNode should use NameNode.getRemoteUser() to log audit event to avoid possible NPE

[ASF GitHub Bot (Jira)]

    [ 
https://issues.apache.org/jira/browse/HDFS-16750?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17597150#comment-17597150
 ] 

ASF GitHub Bot commented on HDFS-16750:
---------------------------------------

ZanderXu opened a new pull request, #4821:
URL: https://github.com/apache/hadoop/pull/4821

   ### Description of PR
   
   NameNode should use NameNode.getRemoteUser() to log audit event to avoid 
possible NPE.
   
   The relate code is: 
   ```
   private void logAuditEvent(boolean succeeded, String cmd, String src,
       String dst, FileStatus stat) throws IOException {
     if (isAuditEnabled() && isExternalInvocation()) {
       logAuditEvent(succeeded, Server.getRemoteUser(), Server.getRemoteIp(),
           cmd, src, dst, stat);
     }
   }
   
   // the ugi may be null.
   private void logAuditEvent(boolean succeeded,
       UserGroupInformation ugi, InetAddress addr, String cmd, String src,
       String dst, FileStatus status) {
     final String ugiStr = ugi.toString();
     ...
   } 
   ```
   
   




> NameNode should use NameNode.getRemoteUser() to log audit event to avoid 
> possible NPE 
> --------------------------------------------------------------------------------------
>
>                 Key: HDFS-16750
>                 URL: https://issues.apache.org/jira/browse/HDFS-16750
>             Project: Hadoop HDFS
>          Issue Type: Bug
>            Reporter: ZanderXu
>            Assignee: ZanderXu
>            Priority: Major
>
> NameNode should use NameNode.getRemoteUser() to log audit event to avoid 
> possible NPE.
> The relate code is: 
> {code:java}
> private void logAuditEvent(boolean succeeded, String cmd, String src,
>     String dst, FileStatus stat) throws IOException {
>   if (isAuditEnabled() && isExternalInvocation()) {
>     logAuditEvent(succeeded, Server.getRemoteUser(), Server.getRemoteIp(),
>         cmd, src, dst, stat);
>   }
> }
> // the ugi may be null.
> private void logAuditEvent(boolean succeeded,
>     UserGroupInformation ugi, InetAddress addr, String cmd, String src,
>     String dst, FileStatus status) {
>   final String ugiStr = ugi.toString();
>   ...
> } {code}



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