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https://issues.apache.org/jira/browse/CASSANDRA-4589?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13445182#comment-13445182
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Vijay commented on CASSANDRA-4589:
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I think this is more like a configuration issue than a livenodes check (which 
is kind of health check to see if the write will succeed). 
If we do this patch we will not allow RW for the case when the RF > nodes.... 
if we cannot Read or write to a KS why allow creating it? :)
                
> writes are allowed when RF>N
> ----------------------------
>
>                 Key: CASSANDRA-4589
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-4589
>             Project: Cassandra
>          Issue Type: Bug
>          Components: Core
>    Affects Versions: 1.1.2
>            Reporter: Brandon Williams
>            Assignee: Vijay
>            Priority: Minor
>             Fix For: 1.2.0
>
>
> Easily repro'd by running stress with a ridiculous rf:
> # tools/bin/cassandra-stress -n 100000 -i 1 -o insert -l123456
> We're supposed to allow creation of a ks where the rf exceeds the amount of 
> nodes, but we shouldn't be able to write to it.

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