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https://issues.apache.org/jira/browse/BOOKKEEPER-181?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13270331#comment-13270331
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Sijie Guo commented on BOOKKEEPER-181:
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@Roger

If there is autoincrement provided by backend meta store, it would better to 
use it. I am not sure client-driven CAS could do it perfectly.


                
> Scale hedwig
> ------------
>
>                 Key: BOOKKEEPER-181
>                 URL: https://issues.apache.org/jira/browse/BOOKKEEPER-181
>             Project: Bookkeeper
>          Issue Type: Improvement
>          Components: bookkeeper-server, hedwig-server
>            Reporter: Sijie Guo
>            Assignee: Sijie Guo
>             Fix For: 4.2.0
>
>         Attachments: hedwigscale.pdf, hedwigscale.pdf
>
>
> Current implementation of Hedwig and BookKeeper is designed to scale to 
> hundreds of thousands of topics, but now we are looking at scaling them to 
> tens to hundreds of millions of topics, using a scalable key/value store such 
> as HBase.

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