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From "Enis Soztutar (JIRA)" <j...@apache.org>
Subject [jira] Commented: (HADOOP-2113) Add "-text" command to FsShell to decode SequenceFile to stdout
Date Sat, 27 Oct 2007 13:42:50 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-2113?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12538199

Enis Soztutar commented on HADOOP-2113:

I rather think of implementing a more general set of tools to operate sequence files. Because
sequence files are at the heart of mapred operations, making human-interprettable operations
should be supported by the framework. The set of operations that I can think of include :

# find value given key 
# find values with keys matching given regex (dump to text file)
# dump sequence file to text file (using keyClass.toString() and valueClass.toString())
# find pairs in the given key1-key2 range. 
# dump metadata and statistics of the sf, such as number of record, key range, etc. 
# ... suggestions ?

> Add "-text" command to FsShell to decode SequenceFile to stdout
> ---------------------------------------------------------------
>                 Key: HADOOP-2113
>                 URL: https://issues.apache.org/jira/browse/HADOOP-2113
>             Project: Hadoop
>          Issue Type: Improvement
>          Components: fs
>            Reporter: Chris Douglas
>            Assignee: Chris Douglas
>            Priority: Minor
>             Fix For: 0.16.0
>         Attachments: 2113-0.patch
> FsShell should provide a command to examine SequenceFiles.

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