Henry Robinson commented on ZOOKEEPER-107:


Your solution is essentially what will happen. F and G will contact E while 
they are trying to elect a leader. During this process they can all exchange 
the most recent view that they saw so that E realises the current view. If EFG 
form a quorum in any view then we can see that either a) it is the latest view 
or b) at least one of them will know about a later view. Therefore there's also 
no concern about resurrecting old views.

> 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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