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https://issues.apache.org/jira/browse/BOOKKEEPER-181?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13241204#comment-13241204
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Sijie Guo commented on BOOKKEEPER-181:
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as discussion offline about whether using bytes array or String as a key, I
prefer using bytes array. because bytes array is a more generic representation
for data, which it doesn't need to care about string character set. Actually in
hedwig, the topic name is provide thru protobuf ByteString, if we want to use
topic name or subscriber name as key, bytes array is a better solution.
Also bytes array is more flexible for application to decide how to
serialize/form a key.
> 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
> 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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