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https://issues.apache.org/jira/browse/HDFS-6634?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14055164#comment-14055164
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James Thomas commented on HDFS-6634:
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That would require a lot more work on the part of the application developer -- 
some mechanism to expose the audit log (HTTP server on the NN?), custom code to 
find the desired starting point in the log, custom code to filter out undesired 
events, some sort of custom access control system, etc. We want to provide a 
user-friendly API like Linux inotify.

> inotify in HDFS
> ---------------
>
>                 Key: HDFS-6634
>                 URL: https://issues.apache.org/jira/browse/HDFS-6634
>             Project: Hadoop HDFS
>          Issue Type: New Feature
>          Components: hdfs-client, namenode, qjm
>            Reporter: James Thomas
>            Assignee: James Thomas
>         Attachments: inotify-intro.pdf
>
>
> Design a mechanism for applications like search engines to access the HDFS 
> edit stream.



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