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From "Harsh J (Commented) (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAPREDUCE-3991) Streaming FAQ has some wrong instructions about input files splitting
Date Fri, 09 Mar 2012 21:26:57 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-3991?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13226481#comment-13226481

Harsh J commented on MAPREDUCE-3991:

(Second QA run came later, so could not apply, after trunk commit had gone in. It was just
a line change between the two patches, and I had tested it locally pre commit.)
> Streaming FAQ has some wrong instructions about input files splitting
> ---------------------------------------------------------------------
>                 Key: MAPREDUCE-3991
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-3991
>             Project: Hadoop Map/Reduce
>          Issue Type: Improvement
>          Components: documentation
>    Affects Versions: 0.23.0
>            Reporter: Harsh J
>            Assignee: Harsh J
>            Priority: Trivial
>             Fix For: 0.24.0, 0.23.3
>         Attachments: MAPREDUCE-3991.patch, MAPREDUCE-3991.patch
> Steaming docs say, at: http://hadoop.apache.org/common/docs/current/streaming.html#How+do+I+process+files%2C+one+per+map%3F
> "Generate a file containing the full HDFS path of the input files. Each map task would
get one file name as input."
> This is incorrect, as a file isn't split by lines, rather by size - for MR.

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