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https://issues.apache.org/jira/browse/BOOKKEEPER-537?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13818365#comment-13818365
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Sijie Guo commented on BOOKKEEPER-537:
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split this task into several sub-tasks.
> Handling session expire event
> -----------------------------
>
> Key: BOOKKEEPER-537
> URL: https://issues.apache.org/jira/browse/BOOKKEEPER-537
> Project: Bookkeeper
> Issue Type: Improvement
> Reporter: Sijie Guo
> Assignee: Sijie Guo
> Fix For: 4.3.0
>
>
> This is a master jira to provide better session expire handling for both
> BOOKKEEPER and Hedwig.
> This task could be divided into several tasks:
> 1) provide a reconnectable zookeeper client, which wrap the zookeeper client.
> when session is expired, it created a new zookeeper client to replace the
> expired one.
> 2) session handling for bookie server
> 3) session handling for bookkeeper client.
> 4) session handling for Hedwig. when session is expired, hedwig should
> disable ensemble change and ledger change. when the client is recovered from
> session expired state, hedwig enables ensemble change and ledger change, and
> it would try to reclaim its owned topic.
> the works are available in
> https://github.com/sijie/bookkeeper/commits/retryable_zk_2. will try to
> generate the patches after 4.2.0 release.
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