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https://issues.apache.org/jira/browse/HDFS-6634?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14058136#comment-14058136
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James Thomas commented on HDFS-6634:
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Initially we will expose the entire stream to superusers only. As noted in the
design doc, the load on the NN shouldn't be terribly high since the edits
simply need to be sent over the wire and additional processing (like converting
to ProtoBuf'ed form) can be done on the clients. In addition, as Andrew
mentioned above, we can run this system as a separate, reduced-functionality NN
(much like the Standby NN) if the load on the primary NN is too high.
> 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.2.pdf, inotify-intro.pdf
>
>
> Design a mechanism for applications like search engines to access the HDFS
> edit stream.
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