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https://issues.apache.org/jira/browse/CASSANDRA-3772?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Dave Brosius updated CASSANDRA-3772:
------------------------------------

    Attachment: hashed_partitioner.diff

Moved existing RandomPartitioner code to AbstractHashedPartitioner, and added 
abstract hash method. Created two subclasses, MD5Partitioner and 
Murmur3Partitioner that extend and implement this method. Added back in a 
deprecated RandomPartitioner class that identity-derives from MD5Partitioner 
for backwards compatibility.

patch against trunk
                
> Evaluate Murmur3-based partitioner
> ----------------------------------
>
>                 Key: CASSANDRA-3772
>                 URL: https://issues.apache.org/jira/browse/CASSANDRA-3772
>             Project: Cassandra
>          Issue Type: New Feature
>          Components: Core
>            Reporter: Jonathan Ellis
>            Assignee: Dave Brosius
>             Fix For: 1.2
>
>         Attachments: hashed_partitioner.diff, try_murmur3.diff, 
> try_murmur3_2.diff
>
>
> MD5 is a relatively heavyweight hash to use when we don't need cryptographic 
> qualities, just a good output distribution.  Let's see how much overhead we 
> can save by using Murmur3 instead.

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