[jira] [Updated] (MAPREDUCE-6549) multibyte delimiters with LineRecordReader cause duplicate records

["Junping Du (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/MAPREDUCE-6549?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Junping Du updated MAPREDUCE-6549:
----------------------------------
    Fix Version/s: 2.8.0

> multibyte delimiters with LineRecordReader cause duplicate records
> ------------------------------------------------------------------
>
>                 Key: MAPREDUCE-6549
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-6549
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: mrv1, mrv2
>    Affects Versions: 2.7.2
>            Reporter: Dustin Cote
>            Assignee: Wilfred Spiegelenburg
>             Fix For: 2.8.0, 2.7.2, 2.6.3, 3.0.0-alpha1
>
>         Attachments: MAPREDUCE-6549-1.patch, MAPREDUCE-6549-2.patch, MAPREDUCE-6549.3.patch
>
>
> LineRecorderReader currently produces duplicate records under certain scenarios such as:
> 1) input string: "abc+++def++ghi++" 
> delimiter string: "+++" 
> test passes with all sizes of the split 
> 2) input string: "abc++def+++ghi++" 
> delimiter string: "+++" 
> test fails with a split size of 4 
> 2) input string: "abc+++def++ghi++" 
> delimiter string: "++" 
> test fails with a split size of 5 
> 3) input string "abc+++defg++hij++" 
> delimiter string: "++" 
> test fails with a split size of 4 
> 4) input string "abc++def+++ghi++" 
> delimiter string: "++" 
> test fails with a split size of 9 



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