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From "Harsh J (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (HADOOP-8449) hadoop fs -text fails with compressed sequence files with the codec file extension
Date Wed, 30 May 2012 17:48:23 GMT

    [ https://issues.apache.org/jira/browse/HADOOP-8449?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13285845#comment-13285845
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Harsh J commented on HADOOP-8449:
---------------------------------

Snappy is currently un-detectable code wise, at least AFAICT, since it lacks a container format.
However, yeah, we should check for SEQ magic header (and the likes) first I think.
                
> hadoop fs -text fails with compressed sequence files with the codec file extension
> ----------------------------------------------------------------------------------
>
>                 Key: HADOOP-8449
>                 URL: https://issues.apache.org/jira/browse/HADOOP-8449
>             Project: Hadoop Common
>          Issue Type: Bug
>    Affects Versions: 1.0.3, 2.0.0-alpha
>            Reporter: Joey Echeverria
>            Priority: Minor
>
> When the -text command is run on a file and the file ends in the default extension for
a codec (e.g. snappy or gz), but is a compressed sequence file, the command will fail.
> The issue is that it assumes that if it matches the extension, then it's plain compressed
file. It might be more helpful to check if it's a sequence file first, and then check the
file extension second.

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