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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