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https://issues.apache.org/jira/browse/HADOOP-5266?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12689749#action_12689749
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Owen O'Malley commented on HADOOP-5266:
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This shouldn't be done for the old api. It should only be done on the mapreduce
api.
> Values Iterator should support "mark" and "reset"
> -------------------------------------------------
>
> Key: HADOOP-5266
> URL: https://issues.apache.org/jira/browse/HADOOP-5266
> Project: Hadoop Core
> Issue Type: Improvement
> Components: mapred
> Reporter: Jothi Padmanabhan
> Assignee: Jothi Padmanabhan
> Fix For: 0.21.0
>
>
> Some users have expressed interest in having a mark-reset functionality on
> values iterator. Users can call mark() at any point during the iteration
> process and a subsequent reset() should move the iterator to the last value
> emitted when mark() was called.
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