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Date: Tue, 24 Sep 2013 07:38:04 +0000 (UTC)
From: "Liang Xie (JIRA)" <jira@apache.org>
To: issues@hbase.apache.org
Message-ID: <JIRA.12670002.1379925217471.7489.1380008284168@arcas>
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Subject: [jira] [Updated] (HBASE-9631) add murmur3 hash
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     [ https://issues.apache.org/jira/browse/HBASE-9631?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Liang Xie updated HBASE-9631:
-----------------------------

    Attachment: HBase-9631-v2.txt

v2 fixs findbug warnings with annotation
                
> add murmur3 hash
> ----------------
>
>                 Key: HBASE-9631
>                 URL: https://issues.apache.org/jira/browse/HBASE-9631
>             Project: HBase
>          Issue Type: New Feature
>          Components: util
>    Affects Versions: 0.98.0
>            Reporter: Liang Xie
>            Assignee: Liang Xie
>         Attachments: HBase-9631.txt, HBase-9631-v2.txt
>
>
> MurmurHash3 is the successor to MurmurHash2. It comes in 3 variants - a 32-bit version that targets low latency for hash table use and two 128-bit versions for generating unique identifiers for large blocks of data, one each for x86 and x64 platforms.
> several open source projects have added murmur3 already, like cassandra, mahout, etc.
> I just port the murmur3 from MAHOUT-862. due to compatibility, let's keep the default Hash algo(murmur2) without changing.

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