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https://issues.apache.org/jira/browse/HDFS-8940?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15366145#comment-15366145
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Kai Zheng commented on HDFS-8940:
---------------------------------

It looks to me the Kafka approach would be much more useful, because it can 
integrate with many popular existing consumer systems at the same time. To 
solve the issue [~mingma] mentioned before where a Zookeeper cluster may be 
better, maybe Zookeeper can be populated with the events as a Kafka consumer to 
support lots of client users?

> 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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