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https://issues.apache.org/jira/browse/HDFS-8940?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14715532#comment-14715532
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Colin Patrick McCabe commented on HDFS-8940:
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One thing that I'm curious about is, would the "read-inotify-from-standby"
solution scale just as well as this proposed ZK solution? Especially when
using more than one standby NameNode. I wonder if you could do a more detailed
comparison between the two approaches...
> 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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