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Posted to mapreduce-issues@hadoop.apache.org by "Priyo Mustafi (JIRA)" <ji...@apache.org> on 2011/01/28 03:18:48 UTC

[jira] Commented: (MAPREDUCE-2188) The new API MultithreadedMapper doesn't call the initialize method of the RecordReader

    [ https://issues.apache.org/jira/browse/MAPREDUCE-2188?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12987889#action_12987889 ] 

Priyo Mustafi commented on MAPREDUCE-2188:
------------------------------------------

Tested the patch several times.  Looks good.

> The new API MultithreadedMapper doesn't call the initialize method of the RecordReader
> --------------------------------------------------------------------------------------
>
>                 Key: MAPREDUCE-2188
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-2188
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>            Reporter: Owen O'Malley
>            Assignee: Owen O'Malley
>         Attachments: mr2188.patch
>
>
> The wrapping RecordReader in the Multithreaded Mapper is never initialized. With HADOOP-6685, this becomes a problem because the ReflectionUtils.copy requires a non-null configuration.

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