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https://issues.apache.org/jira/browse/MAHOUT-1141?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]
Sebastian Schelter resolved MAHOUT-1141.
----------------------------------------
Resolution: Fixed
Problem was a failing cast, switched to parsing the args from strings. Thank
you for your pointing us to that bug.
> Driver for cvb0_local does not warn about missing maxIterations command line
> parameter
> --------------------------------------------------------------------------------------
>
> Key: MAHOUT-1141
> URL: https://issues.apache.org/jira/browse/MAHOUT-1141
> Project: Mahout
> Issue Type: Bug
> Components: Clustering
> Affects Versions: 0.7, 0.8
> Environment: MacOS 10.8, Java 7
> Reporter: Samar Lotia
> Priority: Minor
>
> The driver for cvb0_local does not seem to verify whether the caller has
> specified the required maxIterations command line parameter. This results in
> an exception much further down which pretty much requires looking at the
> source to discover the source of the error.
> Exception in thread "main" java.lang.ClassCastException: java.lang.Integer
> cannot be cast to java.lang.String
> at
> org.apache.mahout.clustering.lda.cvb.InMemoryCollapsedVariationalBayes0.main2(InMemoryCollapsedVariationalBayes0.java:374)
> at
> org.apache.mahout.clustering.lda.cvb.InMemoryCollapsedVariationalBayes0.run(InMemoryCollapsedVariationalBayes0.java:521)
> 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.lda.cvb.InMemoryCollapsedVariationalBayes0.main(InMemoryCollapsedVariationalBayes0.java:525)
> 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:601)
> 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)
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