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https://issues.apache.org/jira/browse/BOOKKEEPER-915?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15229742#comment-15229742
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Sijie Guo commented on BOOKKEEPER-915:
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[~sboobna] we actually have a fix at Twitter's branch: 
https://github.com/twitter/bookkeeper/commit/fc7e171135a58cddb9e91f5f614b3ceb6f9f9fee
 would willing to consolidate the work if you haven't started yet.

> Auto replication should honor ensemble placement policy
> -------------------------------------------------------
>
>                 Key: BOOKKEEPER-915
>                 URL: https://issues.apache.org/jira/browse/BOOKKEEPER-915
>             Project: Bookkeeper
>          Issue Type: Bug
>          Components: bookkeeper-server
>    Affects Versions: 4.4.0
>            Reporter: Siddharth Sunil Boobna
>            Assignee: Siddharth Sunil Boobna
>             Fix For: 4.5.0
>
>
> ReplicationWorker does not honor Ensemble Placement Policy.
> The target bookie in ReplicationWorker should only be able to replicate based 
> on the placement policy, else give up the underreplicated lock. For example, 
> in rackaware policy, the target bookie should only be able to replicate if 
> its not in the same rack as the other bookies in the ensemble, or if there 
> isn't any other bookie available in different racks.



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