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From "dhruba borthakur (JIRA)" <j...@apache.org>
Subject [jira] Created: (HADOOP-6338) Utility to tail the contents of a directory
Date Wed, 28 Oct 2009 00:18:59 GMT
Utility to tail the contents of a directory
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                 Key: HADOOP-6338
                 URL: https://issues.apache.org/jira/browse/HADOOP-6338
             Project: Hadoop Common
          Issue Type: Improvement
            Reporter: dhruba borthakur
            Assignee: dhruba borthakur


There is an existing utility "bin/hadoop fs -tail -f <filename>" that prints the last
few records from the specified file. A map-reduce application uses a directory as a data-set
and it creates multiple files in a HDFS directory. I am proposing that we extend  "bin/hadoop
fs -tail -f <directory>" to tail the contents of a directory. The files in the directory
can be sorted (lexicographically, or based on modtimes) to arrive at the virtual sequence
of the set of files inside the directory. 

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