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https://issues.apache.org/jira/browse/CASSANDRA-1451?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12934833#action_12934833
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Jonathan Ellis commented on CASSANDRA-1451:
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bq. When a node is in that state and it receives a request from another node 
that doesn't know it, have send a message that politely explains the situation 
and "please stop sending me requests."

you're basically guaranteed to get these from every node in the cluster b/c of 
gossip delay, if it's under load.  i'd say let's use gossip and accept there 
will be some delay.

> Shutting down a node "cleanly" still kills client requests when the node goes 
> down
> ----------------------------------------------------------------------------------
>
>                 Key: CASSANDRA-1451
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-1451
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Core
>    Affects Versions: 0.6.5
>            Reporter: David King
>
> Shutting down a node, even more cleanly through drain, still kills some 
> requests with timeoutexceptions. Ideally, operations would not be sent at all 
> to nodes that are known to be shutting down, perhaps by shutting down gossip 
> before starting the draining process. 
> Other nodes will still need to have the phi convict threshold exceeded, but 
> presumably that's usually shorter than drain

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