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Posted to common-dev@hadoop.apache.org by "Tom White (JIRA)" <ji...@apache.org> on 2008/10/21 22:00:44 UTC

[jira] Commented: (HADOOP-4466) SequenceFileOutputFormat is coupled to WritableComparable and Writable

    [ https://issues.apache.org/jira/browse/HADOOP-4466?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12641562#action_12641562 ] 

Tom White commented on HADOOP-4466:
-----------------------------------

+1

> 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
>         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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