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From "Sylvain Lebresne (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (CASSANDRA-4120) Gossip identifies hosts by IP
Date Thu, 05 Apr 2012 15:42:27 GMT

    [ https://issues.apache.org/jira/browse/CASSANDRA-4120?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13247300#comment-13247300
] 

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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