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https://issues.apache.org/jira/browse/CASSANDRA-7510?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14192416#comment-14192416
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Tyler Hobbs commented on CASSANDRA-7510:
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Well, this is definitely an improvement over what we currently have, so I'll +1 
committing this for now and open a new ticket to figure out the best way to 
delay UP notifications until the rpc server has started.

> Notify clients that bootstrap is finished over binary protocol
> --------------------------------------------------------------
>
>                 Key: CASSANDRA-7510
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-7510
>             Project: Cassandra
>          Issue Type: Bug
>            Reporter: Joost Reuzel
>            Assignee: Brandon Williams
>            Priority: Minor
>             Fix For: 2.0.12
>
>         Attachments: 7510.txt
>
>
> Currently, Cassandra will notify clients when a new node is added to a 
> cluster. However, that node is typically not usable yet. It first needs to 
> gossip its key range and finish loading all its assigned data before it 
> allows clients to connect. Depending on the amount of data this may take 
> quite a while. The clients in the mean time have no clue about the bootstrap 
> status of that node. The only thing they can do is periodically check if it 
> will accept a connection. 
> My proposal would be to send an additional UP event when the bootstrap is 
> done, this allows clients to mark the node initially as down/unavailable and 
> simply wait for the UP event to arrive.
> Kind regards,
> Joost



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