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https://issues.apache.org/jira/browse/CASSANDRA-1654?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Matthew F. Dennis updated CASSANDRA-1654:
-----------------------------------------

    Attachment: 1654-cassandra-0.7-v5.txt

v5 fixes NPE when used with DynamicSnitch

+1

> EC2Snitch
> ---------
>
>                 Key: CASSANDRA-1654
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-1654
>             Project: Cassandra
>          Issue Type: New Feature
>          Components: Core
>            Reporter: Jonathan Ellis
>            Assignee: Brandon Williams
>             Fix For: 0.7.1
>
>         Attachments: 1654-cassandra-0.7-v3.txt, 1654-cassandra-0.7-v5.txt, 
> 1654-incomplete.txt, 1654-v2.txt, 1654-v4.txt, 1654.txt
>
>   Original Estimate: 16h
>  Remaining Estimate: 16h
>
> This will be a snitch extending AbstractNetworkTopologySnitch that pulls DC 
> from instance metadata placement_availability_zone.
> I don't think we can get rack information so the choice is between picking 
> something unique-per-machine to be the rack or assigning everything in the DC 
> the same rack.  Second seems easier, so let's use placement_availability_zone 
> for rack, too.

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