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https://issues.apache.org/jira/browse/HADOOP-3315?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=12633972#action_12633972
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Hong Tang commented on HADOOP-3315:
-----------------------------------
bq. Regards discussing our use case, our need is plain. Our catalog table keeps
a list of table regions (Catalog table is basically made from MapFiles).
Regions are denoted by their start and end keys. To update a particular row,
client asks the catalog table for the region that contains the key to update.
Currently we depend on MapFile#getClosest (with the before flag set) to do this.
You may just index the region by the endKey (and keep startKey as an attribute
if you want to). Then ceiling() will give you the right region.
> 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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