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https://issues.apache.org/jira/browse/HADOOP-3315?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12634254#action_12634254
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Owen O'Malley commented on HADOOP-3315:
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I think that a reasonable path to get the committed are to make it useful to
map/reduce. That would require, precisely:
1. Support for user comparators.
2. An ObjectFile class that extends (or wraps) TFile and uses the
serialization libraries to provide objects.
3. {In,Out}putFormats that use ObjectFile.
4. A testcase that has a map/reduce job that reads and writes ObjectFiles.
> New binary file format
> ----------------------
>
> Key: HADOOP-3315
> URL: https://issues.apache.org/jira/browse/HADOOP-3315
> Project: Hadoop Core
> Issue Type: New Feature
> Components: io
> Reporter: Owen O'Malley
> Assignee: Amir Youssefi
> Attachments: HADOOP-3315_20080908_TFILE_PREVIEW_WITH_LZO_TESTS.patch,
> HADOOP-3315_20080915_TFILE.patch, TFile Specification Final.pdf
>
>
> SequenceFile's block compression format is too complex and requires 4 codecs
> to compress or decompress. It would be good to have a file format that only
> needs
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