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https://issues.apache.org/jira/browse/HADOOP-1617?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13066503#comment-13066503
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Harsh J commented on HADOOP-1617:
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It isn't all that difficult to subclass and use via the FileInputFormat API,
but if we were to provide one implementation for each format, that'd be too
many to maintain.
Could instead be a configurable thing? But we got too many options already, and
subclassing is more control.
> It is nice if hadoop provides NonSplitable TextInputFormat and
> SequenceFileInputFormat
> --------------------------------------------------------------------------------------
>
> Key: HADOOP-1617
> URL: https://issues.apache.org/jira/browse/HADOOP-1617
> Project: Hadoop Common
> Issue Type: Improvement
> Reporter: Runping Qi
>
> As more applications find reduce-non option useful, they also want to control
> the splitability of the inputs.
> A simple way to do this is to implement a class that extends
> SequenceFileInputFormat/TextInputFormat class.
> It would be nice if the Framework provides such classes.
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