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https://issues.apache.org/jira/browse/HDFS-8940?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15366286#comment-15366286
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Ming Ma commented on HDFS-8940:
-------------------------------
Thanks [~surendrasingh] and [~drankye]. One of the original motivations is to
support large number of clients. Zookeeper support separation of quorum write
members from the followers, thus allow you to add more machines to scale out
read volume. JournalNode doesn't seem to have such functionality.
> Support for large-scale multi-tenant inotify service
> ----------------------------------------------------
>
> Key: HDFS-8940
> URL: https://issues.apache.org/jira/browse/HDFS-8940
> Project: Hadoop HDFS
> Issue Type: Improvement
> Reporter: Ming Ma
> Attachments: Large-Scale-Multi-Tenant-Inotify-Service.pdf
>
>
> HDFS-6634 provides the core inotify functionality. We would like to extend
> that to provide a large-scale service that ten of thousands of clients can
> subscribe to.
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