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From "Jonathan Ellis (JIRA)" <j...@apache.org>
Subject [jira] Updated: (CASSANDRA-1428) Rejecting keyspace creation when RF > N is incorrect
Date Wed, 25 Aug 2010 01:46:16 GMT

     [ https://issues.apache.org/jira/browse/CASSANDRA-1428?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Jonathan Ellis updated CASSANDRA-1428:
--------------------------------------

    Fix Version/s: 0.7.0

> Rejecting keyspace creation when RF > N is incorrect
> ----------------------------------------------------
>
>                 Key: CASSANDRA-1428
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-1428
>             Project: Cassandra
>          Issue Type: Bug
>    Affects Versions: 0.7 beta 1
>            Reporter: Cliff Moon
>            Priority: Minor
>             Fix For: 0.7.0
>
>
> The behavior introduced in this patch http://www.mail-archive.com/commits@cassandra.apache.org/msg05913.html
is incorrect.
> Disallowing keyspace creation when RF > N is semantically incorrect and makes both
scaling a cluster up and down more difficult than it should be.  This is compounded by the
current lack of any API methods to change the replication factor.  Most dynamo style systems
allow RF to be set > N for smaller clusters.  The cluster will behave as if RF = N until
enough nodes are added such that RF < N.

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