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https://issues.apache.org/jira/browse/CASSANDRA-4120?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13247278#comment-13247278
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Sam Overton commented on CASSANDRA-4120:
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I figured that might have been the motivation.
One alternative would be to use the first token in the list for a given host.
Since every host knows the mapping from tokens -> host, we could in fact use
_any_ token belonging to a host to identify it.
> Gossip identifies hosts by IP
> -----------------------------
>
> Key: CASSANDRA-4120
> URL: https://issues.apache.org/jira/browse/CASSANDRA-4120
> Project: Cassandra
> Issue Type: Sub-task
> Components: Core
> Reporter: Sam Overton
> Assignee: Sam Overton
>
> Since there is no longer a one-to-one mapping of host to token, the IP should
> be used to identify a host. This impacts:
> * Gossip
> * Hinted Hand-off
> * some JMX operations (eg. assassinateEndpointUnsafe)
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