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From "Elliott Clark (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HBASE-9631) add murmur3 hash
Date Tue, 24 Sep 2013 06:19:02 GMT

    [ https://issues.apache.org/jira/browse/HBASE-9631?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13776028#comment-13776028

Elliott Clark commented on HBASE-9631:

What do we gain by just having that hash there if it's not used?  The hash is interesting,
should we turn it on by default ?
> 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
> 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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