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From "Radim Kolar (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-9088) Add Murmur3 hash
Date Fri, 07 Dec 2012 01:09:21 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-9088?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13526061#comment-13526061
] 

Radim Kolar commented on HADOOP-9088:
-------------------------------------

1. downstream projects are using this function - avoid code duplications
2. currently murmur2 is slower then murmur3 and has design flaw. Currently used for generating
bloom filter
3. new TextPartitioner in JIRA is using this hash framework and will benefit from better hash
function available
                
> Add Murmur3 hash
> ----------------
>
>                 Key: HADOOP-9088
>                 URL: https://issues.apache.org/jira/browse/HADOOP-9088
>             Project: Hadoop Common
>          Issue Type: Improvement
>            Reporter: Radim Kolar
>            Assignee: Radim Kolar
>         Attachments: murmur3-2.txt, murmur3-3.txt, murmur3-4.txt, murmur3-5.txt, murmur3-6.txt,
murmur3.txt
>
>
> faster and better then murmur2

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