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From "Kelvin Kakugawa (JIRA)" <>
Subject [jira] Commented: (CASSANDRA-665) Persist token ring across cluster restarts
Date Mon, 04 Jan 2010 19:31:58 GMT


Kelvin Kakugawa commented on CASSANDRA-665:

If you could keep version vectors in mind when you think about UUIDs, I'd appreciate it.

Right now, I'm using the IP address as the node id.  However, if a UUID -> IP mapping is
implemented, I'll use the UUID.  So, if possible, I'd prefer the UUID to be shorter than longer.
 Especially, since, it's not practical for the cluster to be more than 300 nodes or so.  (Unless
the gossip implementation is modified to be hierarchical.)

> Persist token ring across cluster restarts
> ------------------------------------------
>                 Key: CASSANDRA-665
>                 URL:
>             Project: Cassandra
>          Issue Type: New Feature
>          Components: Core
>            Reporter: Jonathan Ellis
>            Priority: Minor
>             Fix For: 0.9
> This prevents users from shooting their foot by shutting down a cluster, then restarting
it with a subset of the former nodes.

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