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https://issues.apache.org/jira/browse/HADOOP-15151?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16349533#comment-16349533
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Chris Douglas commented on HADOOP-15151:
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Thanks, [~rybkine]. While {{MapFile}} has some odd quirks, it's maintained by
the project mostly for compatibility with older applications. Improving the
code quality may not be a good use of your time. If you're interested in file
formats generally, you may want to check out the ORC and Parquet projects.
Of course, if that impression is mistaken and {{MapFile}} is important to you,
please feel free to open JIRAs to improve it (provided it continues to
read/write files compatible with the existing format).
> MapFile.fix creates a wrong index file in case of block-compressed data file.
> -----------------------------------------------------------------------------
>
> Key: HADOOP-15151
> URL: https://issues.apache.org/jira/browse/HADOOP-15151
> Project: Hadoop Common
> Issue Type: Bug
> Components: common
> Reporter: Grigori Rybkine
> Assignee: Grigori Rybkine
> Priority: Major
> Labels: patch
> Fix For: 2.9.1
>
> Attachments: HADOOP-15151.001.patch, HADOOP-15151.002.patch,
> HADOOP-15151.003.patch, HADOOP-15151.004.patch, HADOOP-15151.004.patch,
> HADOOP-15151.005.patch
>
>
> Index file created with MapFile.fix for an ordered block-compressed data file
> does not allow to find values for keys existing in the data file via the
> MapFile.get method.
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