Allen Wittenauer commented on HDFS-10776:

Sorry, I've been distracted by security holes and life in general to finish the 
draft I wrote up.  I'll try to knock it out this week.

> Revisit Hdfs Audit Logging
> --------------------------
>                 Key: HDFS-10776
>                 URL: https://issues.apache.org/jira/browse/HDFS-10776
>             Project: Hadoop HDFS
>          Issue Type: Bug
>    Affects Versions: 2.7.2
>            Reporter: Kuhu Shukla
>            Assignee: Kuhu Shukla
> HDFS audit logging is considered critical in many scenarios, but it hasn't 
> been always implemented consistently, especially for new features. As we have 
> seen in HDFS-9395 and the 2.7.3 release discussions in the mailing list, even 
> bug fixes are tricky since some users may get greatly impacted by the 
> resulting incompatibility. The goal of this jira is to clarify what the hdfs 
> audit logging should do and discuss potential approaches that will allows us 
> to move forward.
> 1) What is the correct way of doing the hdfs audit logging? This was 
> discussed in HDFS-9395, but needs to be revisited as there were discussions 
> on the fix being made with wrong assumptions. What needs to be fixed, if 
> HDFS-9395 is incorrect or incomplete?
> 2) What if a single standard cannot satisfy everyone? Do we need to make the 
> audit logging more flexible and configurable?
> 3) What is the best way of introducing future bug fixes to the hdfs audit 
> logging that change the output?  Some may not want a fix, while others may 
> consider it critical and want it asap.
> CC:[~aw]

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