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https://issues.apache.org/jira/browse/HADOOP-2113?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel#action_12538570
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Andrzej Bialecki commented on HADOOP-2113:
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Some additional functionality was requested for HADOOP-175, and so far it
didn't materialize ... ;)
UTF8 keys in these utilities are used only when user wants to retrieve specific
records by key - and indeed, we can change this to Text - otherwise the tools
use whatever classes are declared for keys/values, so from this point of view
they don't depend on UTF8.
Regarding mapred: I use these utilities often, specifically for casual checking
of existing data files, and they come especially handy in cases when only DFS
is working but mapred might not be available, or when the overhead of starting
a mapred job is too high (e.g. dumping the first record of a big SequenceFile).
> 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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