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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-4466) SequenceFileOutputFormat is coupled to WritableComparable and Writable
Date Thu, 23 Oct 2008 21:56:45 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-4466?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12642301#action_12642301
] 

Hudson commented on HADOOP-4466:
--------------------------------

Integrated in Hadoop-trunk #640 (See [http://hudson.zones.apache.org/hudson/job/Hadoop-trunk/640/])
    . Ensure that SequenceFileOutputFormat isn't tied to Writables and can be used with other
Serialization frameworks. Contributed by Chris Wensel.


> SequenceFileOutputFormat is coupled to WritableComparable and Writable
> ----------------------------------------------------------------------
>
>                 Key: HADOOP-4466
>                 URL: https://issues.apache.org/jira/browse/HADOOP-4466
>             Project: Hadoop Core
>          Issue Type: Bug
>          Components: io
>    Affects Versions: 0.19.0
>            Reporter: Chris K Wensel
>            Assignee: Chris K Wensel
>            Priority: Blocker
>             Fix For: 0.19.0
>
>         Attachments: hadoop-4466.patch
>
>
> For some reason SequenceFileOutputFormat calls asSubclass() for OutputKeyClass and OutputValueClass.
This throws a ClassCastException when using non-Writable types with the new Serialization
framework.

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