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Posted to mapreduce-issues@hadoop.apache.org by "Allen Wittenauer (JIRA)" <ji...@apache.org> on 2015/03/10 00:13:38 UTC
[jira] [Updated] (MAPREDUCE-2853) Add "teraread" example
[ https://issues.apache.org/jira/browse/MAPREDUCE-2853?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Allen Wittenauer updated MAPREDUCE-2853:
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Fix Version/s: (was: 0.24.0)
> 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
> Attachments: mapreduce-2853.txt
>
>
> 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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