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https://issues.apache.org/jira/browse/MAPREDUCE-6558?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=15168833#comment-15168833
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Rivkin Andrey commented on MAPREDUCE-6558:
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Hi, Just run into this problem.
Multibyte delimites with *.Bz2 files.
We are on Hadoop 2.5.0, tried to get LineRecordReader from 2.6.4 - didn't help.
Can you please sugest some workaround or where to look (why this problem
occurs?)?
Regards,
Andrey
> multibyte delimiters with compressed input files generate duplicate records
> ---------------------------------------------------------------------------
>
> Key: MAPREDUCE-6558
> URL: https://issues.apache.org/jira/browse/MAPREDUCE-6558
> Project: Hadoop Map/Reduce
> Issue Type: Bug
> Components: mrv1, mrv2
> Affects Versions: 2.7.2
> Reporter: Wilfred Spiegelenburg
> Assignee: Wilfred Spiegelenburg
>
> This is the follow up for MAPREDUCE-6549. Compressed files cause record
> duplications as shown in different junit tests. The number of duplicated
> records changes with the splitsize:
> Unexpected number of records in split (splitsize = 10)
> Expected: 41051
> Actual: 45062
> Unexpected number of records in split (splitsize = 100000)
> Expected: 41051
> Actual: 41052
> Test passes with splitsize = 147445 which is the compressed file length.The
> file is a bzip2 file with 100k blocks and a total of 11 blocks
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