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From "Todd Lipcon (JIRA)" <j...@apache.org>
Subject [jira] [Created] (MAPREDUCE-2853) Add "teraread" example
Date Thu, 18 Aug 2011 01:31:33 GMT
Add "teraread" example

                 Key: MAPREDUCE-2853
                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-2853
             Project: Hadoop Map/Reduce
          Issue Type: New Feature
          Components: benchmarks, examples
    Affects Versions: 0.23.0
            Reporter: Todd Lipcon
            Assignee: Todd Lipcon
             Fix For: 0.23.0

Teragen is a good benchmark of raw DFS write throughput. Terasort is a good benchmark of the
whole MR system (input, shuffle, output). I've added a simple "teraread" example which reads
through the terasort input data without performing any processing: this acts as a good benchmark
of a read-only workload (similar to real-life "find a needle in a haystack" MR jobs)

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