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From "Klaas Bosteels (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HADOOP-5528) Binary partitioner
Date Fri, 27 Mar 2009 11:00:51 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-5528?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Klaas Bosteels updated HADOOP-5528:
-----------------------------------

    Attachment: HADOOP-5528.patch

Apparently I didn't read Owen's proposal carefully enough, Chris. I thought he suggested using
the same indices as python, instead of similar but slightly different ones. I think I finally
understood what you guys meant now, though, and the new patch implements this. My only concern
with this is that the slight differentiation from Python might confuse some programmers, but
the javadoc explains it clearly so I guess that shouldn't be much of an issue.

> Binary partitioner
> ------------------
>
>                 Key: HADOOP-5528
>                 URL: https://issues.apache.org/jira/browse/HADOOP-5528
>             Project: Hadoop Core
>          Issue Type: New Feature
>          Components: mapred
>            Reporter: Klaas Bosteels
>            Assignee: Klaas Bosteels
>         Attachments: HADOOP-5528.patch, HADOOP-5528.patch, HADOOP-5528.patch, HADOOP-5528.patch,
HADOOP-5528.patch
>
>
> It would be useful to have a {{BinaryPartitioner}} that partitions {{BinaryComparable}}
keys by hashing a configurable part of the bytes array corresponding to each key.

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