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From "Robert Chansler (JIRA)" <j...@apache.org>
Subject [jira] Updated: (HADOOP-3460) SequenceFileAsBinaryOutputFormat
Date Mon, 30 Jun 2008 23:00:45 GMT

     [ https://issues.apache.org/jira/browse/HADOOP-3460?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Robert Chansler updated HADOOP-3460:
------------------------------------

    Release Note: Created SequenceFileAsBinaryOutputFormat to write raw bytes as keys and
values to a SequenceFile.  (was: Adds an OutputFormat, SequenceFileAsBinaryOutputFormat, to
write raw bytes as keys and values to a SequenceFile.)

> SequenceFileAsBinaryOutputFormat
> --------------------------------
>
>                 Key: HADOOP-3460
>                 URL: https://issues.apache.org/jira/browse/HADOOP-3460
>             Project: Hadoop Core
>          Issue Type: New Feature
>          Components: mapred
>            Reporter: Koji Noguchi
>            Assignee: Koji Noguchi
>            Priority: Minor
>             Fix For: 0.18.0
>
>         Attachments: HADOOP-3460-part1.patch, HADOOP-3460-part2.patch, HADOOP-3460-part3.patch
>
>
> Add an OutputFormat to write raw bytes as keys and values to a SequenceFile.
> In C++-Pipes, we're using SequenceFileAsBinaryInputFormat to read Sequencefiles.
> However, we current don't have a way to *write* a sequencefile efficiently without going
through extra (de)serializations.
> I'd like to store the correct classnames for key/values but use BytesWritable to write
> (in order for the next java or pig code to be able to read this sequencefile).

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