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https://issues.apache.org/jira/browse/BOOKKEEPER-259?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13414665#comment-13414665
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Sijie Guo commented on BOOKKEEPER-259:
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review board: https://reviews.apache.org/r/5964/
> Create a topic manager using versioned write for leader election
> ----------------------------------------------------------------
>
> Key: BOOKKEEPER-259
> URL: https://issues.apache.org/jira/browse/BOOKKEEPER-259
> Project: Bookkeeper
> Issue Type: Sub-task
> Components: hedwig-server
> Reporter: Sijie Guo
> Assignee: Sijie Guo
> Fix For: 4.2.0
>
> Attachments: BOOKKEEPER-259.diff, BOOKKEEPER-259.diff_v2,
> BOOKKEEPER-259.diff_v3, BOOKKEEPER-259.diff_v4
>
>
> currently, ZkTopicManager use zookeeper ephemeral node to store the owner
> information of a topic. so the znode will disappear when the owner hub server
> is down, the leader election is quite simple based on this model.
> but for most key-value storage, there is no similar concepts like ephemeral
> node, but just providing versioned writes. so it would be better to provide a
> topic manager using versioned writes.
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