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Posted to common-dev@hadoop.apache.org by "Owen O'Malley (JIRA)" <ji...@apache.org> on 2008/04/02 22:13:24 UTC

[jira] Updated: (HADOOP-1986) Add support for a general serialization mechanism for Map Reduce

     [ https://issues.apache.org/jira/browse/HADOOP-1986?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Owen O'Malley updated HADOOP-1986:
----------------------------------

    Hadoop Flags: [Incompatible change, Reviewed]

> Add support for a general serialization mechanism for Map Reduce
> ----------------------------------------------------------------
>
>                 Key: HADOOP-1986
>                 URL: https://issues.apache.org/jira/browse/HADOOP-1986
>             Project: Hadoop Core
>          Issue Type: New Feature
>          Components: mapred
>            Reporter: Tom White
>            Assignee: Tom White
>             Fix For: 0.17.0
>
>         Attachments: hadoop-serializer-v2.tar.gz, SequenceFileWriterBenchmark.java, SerializableWritable.java, serializer-v1.patch, serializer-v2.patch, serializer-v3.patch, serializer-v4.patch, serializer-v5.patch, serializer-v6.patch, serializer-v7.patch
>
>
> Currently Map Reduce programs have to use WritableComparable-Writable key-value pairs. While it's possible to write Writable wrappers for other serialization frameworks (such as Thrift), this is not very convenient: it would be nicer to be able to use arbitrary types directly, without explicit wrapping and unwrapping.

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