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Sylvain Lebresne commented on CASSANDRA-4120:
---------------------------------------------
I wouldn't bother and pick a UUID the first time the node is started and save
that in the system tables. Independently of anything else, I think it could be
neat to have a way to identify a node independently of it's IP (which in theory
could change even if the host itself stay the same) or whether it changes of
token during it's lifetime.
> 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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