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From "Suneel Marthi (JIRA)" <j...@apache.org>
Subject [jira] [Resolved] (MAHOUT-1639) streamingkmeans doesn't properly validate estimatedNumMapClusters -km
Date Tue, 27 Jan 2015 03:01:35 GMT

     [ https://issues.apache.org/jira/browse/MAHOUT-1639?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Suneel Marthi resolved MAHOUT-1639.
-----------------------------------
       Resolution: Not a Problem
    Fix Version/s: 1.0

> streamingkmeans doesn't properly validate estimatedNumMapClusters -km
> ---------------------------------------------------------------------
>
>                 Key: MAHOUT-1639
>                 URL: https://issues.apache.org/jira/browse/MAHOUT-1639
>             Project: Mahout
>          Issue Type: Bug
>          Components: CLI
>    Affects Versions: 0.9
>            Reporter: Peter Sergeant
>            Assignee: Suneel Marthi
>            Priority: Minor
>             Fix For: 1.0
>
>   Original Estimate: 1h
>  Remaining Estimate: 1h
>
> The value of -km isn't checked by the CLI, which means if you don't specify it, you get
the rather cryptic:
> {noformat}
> Exception in thread "main" java.lang.NumberFormatException: null
> 	at java.lang.Integer.parseInt(Integer.java:454)
> 	at java.lang.Integer.parseInt(Integer.java:527)
> 	at org.apache.mahout.clustering.streaming.mapreduce.StreamingKMeansDriver.configureOptionsForWorkers(StreamingKMeansDriver.java:252)
> 	at org.apache.mahout.clustering.streaming.mapreduce.StreamingKMeansDriver.run(StreamingKMeansDriver.java:239)
> 	at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:65)
> 	at org.apache.hadoop.util.ToolRunner.run(ToolRunner.java:79)
> 	at org.apache.mahout.clustering.streaming.mapreduce.StreamingKMeansDriver.main(StreamingKMeansDriver.java:491)
> 	at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> 	at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:57)
> 	at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:43)
> 	at java.lang.reflect.Method.invoke(Method.java:606)
> 	at org.apache.hadoop.util.ProgramDriver$ProgramDescription.invoke(ProgramDriver.java:68)
> 	at org.apache.hadoop.util.ProgramDriver.driver(ProgramDriver.java:139)
> 	at org.apache.mahout.driver.MahoutDriver.main(MahoutDriver.java:195)
> {noformat}
> Other parameters give helpful error messages when required



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