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From "Amir Youssefi (JIRA)" <j...@apache.org>
Subject [jira] Issue Comment Edited: (HADOOP-3315) New binary file format
Date Fri, 12 Sep 2008 02:45:44 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-3315?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12630442#action_12630442
] 

amirhyoussefi edited comment on HADOOP-3315 at 9/11/08 7:43 PM:
----------------------------------------------------------------

Did initial benchmarks with 100B keys and 5KB values. We found some performance improvement
opportunities and an LZO issue (HADOOP-4162). I will make a few changes to make a scenario
usable for comparison with Sequence Files.

      was (Author: amirhyoussefi):
    Did initial benchmarks with 100B key and 5K values. We found some performance improvement
opportunities and an LZO issue (HADOOP-4162). I will make a few changes to make a scenario
usable for comparison with Sequence Files.
  
> 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_TFILE_PREVIEW.patch, HADOOP-3315_TFILE_PREVIEW_WITH_LZO_TESTS.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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