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From "Harsh J (JIRA)" <j...@apache.org>
Subject [jira] [Updated] (MAPREDUCE-3990) MRBench allows Long-sized input-lines value but parses CLI argument as an Integer
Date Mon, 28 May 2012 13:28:23 GMT

     [ https://issues.apache.org/jira/browse/MAPREDUCE-3990?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel

Harsh J updated MAPREDUCE-3990:

          Resolution: Fixed
       Fix Version/s: 3.0.0
    Target Version/s:   (was: 3.0.0)
              Status: Resolved  (was: Patch Available)

Committed revision 1343247 to trunk.
> MRBench allows Long-sized input-lines value but parses CLI argument as an Integer
> ---------------------------------------------------------------------------------
>                 Key: MAPREDUCE-3990
>                 URL: https://issues.apache.org/jira/browse/MAPREDUCE-3990
>             Project: Hadoop Map/Reduce
>          Issue Type: Bug
>          Components: benchmarks
>    Affects Versions: 2.0.0-alpha
>            Reporter: Harsh J
>            Assignee: Harsh J
>            Priority: Trivial
>              Labels: mrbench
>             Fix For: 3.0.0
>         Attachments: MAPREDUCE-3990.patch
> MRBench has the following method:
> {code}
> public void generateTextFile(FileSystem fs, Path inputFile, long numLines, Order sortOrder)
{ ... }
> {code}
> The method is already set to accept a long datatype for numLines, for generating very
large amount of data.
> However, in {{MRBench#run(...)}}, the inputLines CLI parameter is parsed via an Integer.parseInt,
causing numbers passed > Integer.MAX_VALUE to throw NumberFormatExceptions as a result.
> The parsing should be Long.parseLong and the inputLines datatype should be switched to
the same type as passed to the method (long).

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