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https://issues.apache.org/jira/browse/ZOOKEEPER-107?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12722153#action_12722153
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Flavio Paiva Junqueira commented on ZOOKEEPER-107:
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+1, I think it is a good idea to use observers (ZOOKEEPER-368). This way we
make sure that once the new configuration is committed the new active member is
in sync with the leader.
I have a slightly different idea of how to make it work, though. I was thinking
that once the observer finsihes synchronizing with the leader, it can simply
submit a setData. This way we have no special code path for this operation.
Only when finalizing the setData operation we have to update all appropriate
data structures.
> Allow dynamic changes to server cluster membership
> --------------------------------------------------
>
> Key: ZOOKEEPER-107
> URL: https://issues.apache.org/jira/browse/ZOOKEEPER-107
> Project: Zookeeper
> Issue Type: Improvement
> Components: server
> Reporter: Patrick Hunt
> Assignee: Henry Robinson
> Attachments: SimpleAddition.rtf
>
>
> Currently cluster membership is statically defined, adding/removing hosts
> to/from the server cluster dynamically needs to be supported.
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