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Posted to mapreduce-issues@hadoop.apache.org by "Harsh J (JIRA)" <ji...@apache.org> on 2012/05/12 14:26:48 UTC
[jira] [Commented] (MAPREDUCE-3990) MRBench allows Long-sized
input-lines value but parses CLI argument as an Integer
[ https://issues.apache.org/jira/browse/MAPREDUCE-3990?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13273961#comment-13273961 ]
Harsh J commented on MAPREDUCE-3990:
------------------------------------
Any comments on the patch? It is a trivial parsing bug-fix, but I'd like to wait for a +1 in any case.
> 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: test
> Affects Versions: 0.23.0
> Reporter: Harsh J
> Assignee: Harsh J
> Priority: Trivial
> 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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