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Date: Thu, 23 Aug 2012 02:17:43 +1100 (NCT)
From: "Jonathan Ellis (JIRA)" <jira@apache.org>
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Subject: [jira] [Commented] (CASSANDRA-3772) Evaluate Murmur3-based
 partitioner
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    [ https://issues.apache.org/jira/browse/CASSANDRA-3772?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13439601#comment-13439601 ] 

Jonathan Ellis commented on CASSANDRA-3772:
-------------------------------------------

Why not just use a Long instead of BigInteger?
                
> 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: Pavel Yaskevich
>             Fix For: 1.2.0
>
>         Attachments: 0001-CASSANDRA-3772.patch, 0001-CASSANDRA-3772-Test.patch, CASSANDRA-3772-v2.patch, CASSANDRA-3772-v3.patch, hashed_partitioner_3.diff, hashed_partitioner.diff, MumPartitionerTest.docx, try_murmur3_2.diff, try_murmur3.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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