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Posted to mapreduce-issues@hadoop.apache.org by "Wilfred Spiegelenburg (JIRA)" <ji...@apache.org> on 2016/05/10 16:05:13 UTC
[jira] [Updated] (MAPREDUCE-6558) multibyte delimiters with
compressed input files generate duplicate records
[ https://issues.apache.org/jira/browse/MAPREDUCE-6558?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Wilfred Spiegelenburg updated MAPREDUCE-6558:
---------------------------------------------
Status: Patch Available (was: Open)
> 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
> Attachments: MAPREDUCE-6558.1.patch
>
>
> 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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