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https://issues.apache.org/jira/browse/HADOOP-6165?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12750774#action_12750774
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Hudson commented on HADOOP-6165:
--------------------------------
Integrated in Hadoop-Common-trunk-Commit #12 (See
[http://hudson.zones.apache.org/hudson/job/Hadoop-Common-trunk-Commit/12/])
. Add metadata to Serializations.
> 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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