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From "Tom White (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HADOOP-6165) Add metadata to Serializations
Date Fri, 21 Aug 2009 11:23:15 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-6165?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Tom White updated HADOOP-6165:
------------------------------

    Status: Open  (was: Patch Available)

> Add metadata to Serializations
> ------------------------------
>
>                 Key: HADOOP-6165
>                 URL: https://issues.apache.org/jira/browse/HADOOP-6165
>             Project: Hadoop Common
>          Issue Type: New Feature
>          Components: contrib/serialization
>            Reporter: Tom White
>            Assignee: Tom White
>            Priority: Blocker
>             Fix For: 0.21.0
>
>         Attachments: HADOOP-6165-v2.patch, HADOOP-6165-v3.patch, HADOOP-6165-v4.patch,
HADOOP-6165.patch
>
>
> The Serialization framework only allows a class to be passed as metadata. This assumes
there is a one-to-one mapping between types and Serializations, which is overly restrictive.
By permitting applications to pass arbitrary metadata to Serializations, they can get more
control over which Serialization is used, and would also allow, for example, one to pass an
Avro schema to an Avro Serialization.

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