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From "Doug Cutting (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-175) Utilities for reading SequenceFile and MapFile
Date Sat, 29 Apr 2006 21:05:38 GMT
    [ http://issues.apache.org/jira/browse/HADOOP-175?page=comments#action_12377125 ] 

Doug Cutting commented on HADOOP-175:
-------------------------------------

> I could add similar main() methods to SequenceFile.Reader and MapFile.Reader  ...

Yes, please!  Also, the OutputFormat versions could call routines from these, no?  They would
mostly be directory iterators, right, but could use the primitive MapFile & SequenceFile
to dump records.

> Utilities for reading SequenceFile and MapFile
> ----------------------------------------------
>
>          Key: HADOOP-175
>          URL: http://issues.apache.org/jira/browse/HADOOP-175
>      Project: Hadoop
>         Type: Improvement

>   Components: io
>     Reporter: Andrzej Bialecki 
>     Priority: Minor
>  Attachments: patch.txt
>
> Most data in Hadoop is stored in SequenceFile-s and MapFile-s. Sometimes there is a need
to examine such files, but no specialized utilities exist ro read them.
> These two classes provide a functionality to examine individual records in such files,
and also to dump the content of such files to a plain text output.

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