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From "Hudson (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 21:28:58 GMT

    [ https://issues.apache.org/jira/browse/MAPREDUCE-3991?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13226488#comment-13226488
] 

Hudson commented on MAPREDUCE-3991:
-----------------------------------

Integrated in Hadoop-Common-0.23-Commit #667 (See [https://builds.apache.org/job/Hadoop-Common-0.23-Commit/667/])
    svn merge -c 1299045. Merge MAPREDUCE-3991 into branch-0.23. (harsh) (Revision 1299053)

     Result = SUCCESS
harsh : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1299053
Files : 
* /hadoop/common/branches/branch-0.23
* /hadoop/common/branches/branch-0.23/hadoop-common-project
* /hadoop/common/branches/branch-0.23/hadoop-common-project/hadoop-auth
* /hadoop/common/branches/branch-0.23/hadoop-common-project/hadoop-common
* /hadoop/common/branches/branch-0.23/hadoop-common-project/hadoop-common/CHANGES.txt
* /hadoop/common/branches/branch-0.23/hadoop-common-project/hadoop-common/src/main/docs
* /hadoop/common/branches/branch-0.23/hadoop-common-project/hadoop-common/src/main/java
* /hadoop/common/branches/branch-0.23/hadoop-common-project/hadoop-common/src/test/core
* /hadoop/common/branches/branch-0.23/hadoop-hdfs-project/hadoop-hdfs
* /hadoop/common/branches/branch-0.23/hadoop-hdfs-project/hadoop-hdfs/src/main/java
* /hadoop/common/branches/branch-0.23/hadoop-hdfs-project/hadoop-hdfs/src/main/native
* /hadoop/common/branches/branch-0.23/hadoop-hdfs-project/hadoop-hdfs/src/main/webapps/datanode
* /hadoop/common/branches/branch-0.23/hadoop-hdfs-project/hadoop-hdfs/src/main/webapps/hdfs
* /hadoop/common/branches/branch-0.23/hadoop-hdfs-project/hadoop-hdfs/src/main/webapps/secondary
* /hadoop/common/branches/branch-0.23/hadoop-hdfs-project/hadoop-hdfs/src/test/hdfs
* /hadoop/common/branches/branch-0.23/hadoop-mapreduce-project
* /hadoop/common/branches/branch-0.23/hadoop-mapreduce-project/CHANGES.txt
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* /hadoop/common/branches/branch-0.23/hadoop-mapreduce-project/conf
* /hadoop/common/branches/branch-0.23/hadoop-mapreduce-project/hadoop-mapreduce-client/hadoop-mapreduce-client-core/src/main/resources/mapred-default.xml
* /hadoop/common/branches/branch-0.23/hadoop-mapreduce-project/hadoop-mapreduce-examples
* /hadoop/common/branches/branch-0.23/hadoop-mapreduce-project/hadoop-yarn/hadoop-yarn-site
* /hadoop/common/branches/branch-0.23/hadoop-mapreduce-project/hadoop-yarn/hadoop-yarn-site/src/site/apt
* /hadoop/common/branches/branch-0.23/hadoop-mapreduce-project/src/c++
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* /hadoop/common/branches/branch-0.23/hadoop-mapreduce-project/src/contrib/build-contrib.xml
* /hadoop/common/branches/branch-0.23/hadoop-mapreduce-project/src/contrib/build.xml
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* /hadoop/common/branches/branch-0.23/hadoop-mapreduce-project/src/contrib/index
* /hadoop/common/branches/branch-0.23/hadoop-mapreduce-project/src/contrib/vaidya
* /hadoop/common/branches/branch-0.23/hadoop-mapreduce-project/src/docs/src/documentation/content/xdocs/streaming.xml
* /hadoop/common/branches/branch-0.23/hadoop-mapreduce-project/src/examples
* /hadoop/common/branches/branch-0.23/hadoop-mapreduce-project/src/java
* /hadoop/common/branches/branch-0.23/hadoop-mapreduce-project/src/test/mapred
* /hadoop/common/branches/branch-0.23/hadoop-mapreduce-project/src/test/mapred/org/apache/hadoop/fs
* /hadoop/common/branches/branch-0.23/hadoop-mapreduce-project/src/test/mapred/org/apache/hadoop/hdfs
* /hadoop/common/branches/branch-0.23/hadoop-mapreduce-project/src/test/mapred/org/apache/hadoop/ipc
* /hadoop/common/branches/branch-0.23/hadoop-mapreduce-project/src/webapps/job
* /hadoop/common/branches/branch-0.23/hadoop-project
* /hadoop/common/branches/branch-0.23/hadoop-project/src/site

                
> 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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