When I hear the word “sort” my first thought is usually “Hadoop”! Yes, sorting is one thing that Hadoop does well, but if you’re working with large files in Linux the built-in sort command is often all you need.
LC_COLLATE=C sort --buffer-size=1G --temporary-directory=./tmp --unique bigfile.txt
Let’s break this command down and examine each part in detail.
About the author
Alex Holmes is a senior software engineer with over 15 years of experience developing large scale distributed Java systems. Since 2008 he has gained expertise in using Hadoop to solve Big Data problems across a number of projects. He is the author of Hadoop in Practice, a book published by Manning Publications. He has presented at JavaOne and Jazoon.
RECENT BLOG POSTS
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Details on the presentation I have at JavaOne in 2015 on big data antipatterns.
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Patching Oozie's build so that you can create a package targetting Hadoop 2.2.0.
Hadoop in Practice, Second Edition
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