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From "Hudson (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-8655) In TextInputFormat, while specifying textinputformat.record.delimiter the character/character sequences in data file similar to starting character/starting character sequence in delimiter were found missing in certain cases in the Map Output
Date Thu, 23 Aug 2012 17:08:42 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-8655?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13440452#comment-13440452
] 

Hudson commented on HADOOP-8655:
--------------------------------

Integrated in Hadoop-Common-trunk-Commit #2627 (See [https://builds.apache.org/job/Hadoop-Common-trunk-Commit/2627/])
    HADOOP-8655. Fix TextInputFormat for large deliminators. (Gelesh via  bobby) (Revision
1376592)

     Result = SUCCESS
bobby : http://svn.apache.org/viewcvs.cgi/?root=Apache-SVN&view=rev&rev=1376592
Files : 
* /hadoop/common/trunk/hadoop-common-project/hadoop-common/CHANGES.txt
* /hadoop/common/trunk/hadoop-common-project/hadoop-common/src/main/java/org/apache/hadoop/util/LineReader.java
* /hadoop/common/trunk/hadoop-common-project/hadoop-common/src/test/java/org/apache/hadoop/util/TestLineReader.java

                
> In TextInputFormat, while specifying textinputformat.record.delimiter the character/character
sequences in data file similar to starting character/starting character sequence in delimiter
were found missing in certain cases in the Map Output
> -------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------
>
>                 Key: HADOOP-8655
>                 URL: https://issues.apache.org/jira/browse/HADOOP-8655
>             Project: Hadoop Common
>          Issue Type: Bug
>          Components: util
>    Affects Versions: 0.20.2
>         Environment: Linux- Ubuntu 10.04
>            Reporter: Arun A K
>              Labels: hadoop, mapreduce, textinputformat, textinputformat.record.delimiter
>             Fix For: 3.0.0, 2.2.0-alpha
>
>         Attachments: HADOOP-8655 (2).patch, HADOOP-8655.patch, HADOOP-8655.patch, HADOOP-8655.patch,
MAPREDUCE-4519.patch
>
>   Original Estimate: 168h
>  Remaining Estimate: 168h
>
> Set textinputformat.record.delimiter as "</entity>"
> Suppose the input is a text file with the following content
> <entity><id>1</id><name>User1</name></entity><entity><id>2</id><name>User2</name></entity><entity><id>3</id><name>User3</name></entity><entity><id>4</id><name>User4</name></entity><entity><id>5</id><name>User5</name></entity>
> Mapper was expected to get value as 
> Value 1 - <entity><id>1</id><name>User1</name>
> Value 2 - <entity><id>2</id><name>User2</name>
> Value 3 - <entity><id>3</id><name>User3</name>
> Value 4 - <entity><id>4</id><name>User4</name>
> Value 5 - <entity><id>5</id><name>User5</name>
> According to this bug Mapper gets value
> Value 1 - entity><id>1</id><name>User1</name>
> Value 2 - <entity>id>2</id><name>User2</name>
> Value 3 - <entity><id>3id><name>User3</name>
> Value 4 - <entity><id>4</id><name>User4name>
> Value 5 - <entity><id>5</id><name>User5</name>
> The pattern shown above need not occur for value 1,2,3 necessarily. The bug occurs at
some random positions in the map input.
>  

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