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https://issues.apache.org/jira/browse/HDFS-9395?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15449083#comment-15449083
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Kuhu Shukla commented on HDFS-9395:
-----------------------------------
Thank you [~andrew.wang] for updating the release note. I was under the
assumption that there was something else to be updated during the commit as
well, along with this row. Sorry about that. The message looks good. Appreciate
the help.
> Make HDFS audit logging consistant
> ----------------------------------
>
> Key: HDFS-9395
> URL: https://issues.apache.org/jira/browse/HDFS-9395
> Project: Hadoop HDFS
> Issue Type: Bug
> Reporter: Kihwal Lee
> Assignee: Kuhu Shukla
> Fix For: 3.0.0-alpha1
>
> Attachments: HDFS-9395-branch-2.7.001.patch,
> HDFS-9395-branch-2.7.002.patch, HDFS-9395.001.patch, HDFS-9395.002.patch,
> HDFS-9395.003.patch, HDFS-9395.004.patch, HDFS-9395.005.patch,
> HDFS-9395.006.patch, HDFS-9395.007.patch
>
>
> So, the big question here is what should go in the audit log? All failures,
> or just "permission denied" failures? Or, to put it a different way, if
> someone attempts to do something and it fails because a file doesn't exist,
> is that worth an audit log entry?
> We are currently inconsistent on this point. For example, concat,
> getContentSummary, addCacheDirective, and setErasureEncodingPolicy create an
> audit log entry for all failures, but setOwner, delete, and setAclEntries
> attempt to only create an entry for AccessControlException-based failures.
> There are a few operations, like allowSnapshot, disallowSnapshot, and
> startRollingUpgrade that never create audit log failure entries at all. They
> simply log nothing for any failure, and log success for a successful
> operation.
> So to summarize, different HDFS operations currently fall into 3 categories:
> 1. audit-log all failures
> 2. audit-log only AccessControlException failures
> 3. never audit-log failures
> Which category is right? And how can we fix the inconsistency
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