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From "Sean Owen (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (MAHOUT-1142) TestDistributedLanczosSolverCLI.testDistributedLanczosSolverEVJCLI is broken with Hadoop 0.23.5
Date Tue, 22 Jan 2013 09:28:14 GMT

    [ https://issues.apache.org/jira/browse/MAHOUT-1142?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=13559501#comment-13559501
] 

Sean Owen commented on MAHOUT-1142:
-----------------------------------

OK, it's much farther down. It seems fine to support this, if it's not merely a test error,
but seems actually like the desired behavior in the first place. This is a latent bug then
-- I don't know, didn't write this code. I agree with checking for a directory. It just has
to be done in a way that works with 1.x; it's OK if that is later deprecated if it's not in
1.x. So yes the last patch you attached looks right.
                
> TestDistributedLanczosSolverCLI.testDistributedLanczosSolverEVJCLI is broken with Hadoop
0.23.5
> -----------------------------------------------------------------------------------------------
>
>                 Key: MAHOUT-1142
>                 URL: https://issues.apache.org/jira/browse/MAHOUT-1142
>             Project: Mahout
>          Issue Type: Bug
>    Affects Versions: 0.8
>            Reporter: Jimmy Xiang
>            Priority: Minor
>         Attachments: MAHOUT-1142-2.patch, MAHOUT-1142-3.patch, mahout-1142.patch
>
>
> Stacktrace
> java.lang.AssertionError: number of clean eigenvectors expected:<3> but was:<0>
> at org.junit.Assert.fail(Assert.java:91)
> at org.junit.Assert.failNotEquals(Assert.java:645)
> at org.junit.Assert.assertEquals(Assert.java:126)
> at org.junit.Assert.assertEquals(Assert.java:470)
> at org.apache.mahout.math.hadoop.decomposer.TestDistributedLanczosSolverCLI.testDistributedLanczosSolverEVJCLI(TestDistributedLanczosSolverCLI.java:143)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
> at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> at java.lang.reflect.Method.invoke(Method.java:597)
> at org.junit.runners.model.FrameworkMethod$1.runReflectiveCall(FrameworkMethod.java:44)
> at org.junit.internal.runners.model.ReflectiveCallable.run(ReflectiveCallable.java:15)
> at org.junit.runners.model.FrameworkMethod.invokeExplosively(FrameworkMethod.java:41)
> at org.junit.internal.runners.statements.InvokeMethod.evaluate(InvokeMethod.java:20)
> at org.junit.internal.runners.statements.RunBefores.evaluate(RunBefores.java:28)
> at org.junit.internal.runners.statements.RunAfters.evaluate(RunAfters.java:31)
> at org.junit.runners.BlockJUnit4ClassRunner.runNotIgnored(BlockJUnit4ClassRunner.java:79)
> at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:71)
> at org.junit.runners.BlockJUnit4ClassRunner.runChild(BlockJUnit4ClassRunner.java:49)
> at org.junit.runners.ParentRunner$3.run(ParentRunner.java:193)
> at org.junit.runners.ParentRunner$1.schedule(ParentRunner.java:52)
> at org.junit.runners.ParentRunner.runChildren(ParentRunner.java:191)
> at org.junit.runners.ParentRunner.access$000(ParentRunner.java:42)
> at org.junit.runners.ParentRunner$2.evaluate(ParentRunner.java:184)
> at org.junit.runners.ParentRunner.run(ParentRunner.java:236)
> at org.apache.maven.surefire.junit4.JUnit4Provider.execute(JUnit4Provider.java:236)
> at org.apache.maven.surefire.junit4.JUnit4Provider.executeTestSet(JUnit4Provider.java:134)
> at org.apache.maven.surefire.junit4.JUnit4Provider.invoke(JUnit4Provider.java:113)
> at sun.reflect.NativeMethodAccessorImpl.invoke0(Native Method)
> at sun.reflect.NativeMethodAccessorImpl.invoke(NativeMethodAccessorImpl.java:39)
> at sun.reflect.DelegatingMethodAccessorImpl.invoke(DelegatingMethodAccessorImpl.java:25)
> at java.lang.reflect.Method.invoke(Method.java:597)
> at org.apache.maven.surefire.util.ReflectionUtils.invokeMethodWithArray(ReflectionUtils.java:189)
> at org.apache.maven.surefire.booter.ProviderFactory$ProviderProxy.invoke(ProviderFactory.java:165)
> at org.apache.maven.surefire.booter.ProviderFactory.invokeProvider(ProviderFactory.java:85)
> at org.apache.maven.surefire.booter.ForkedBooter.runSuitesInProcess(ForkedBooter.java:103)
> at org.apache.maven.surefire.booter.ForkedBooter.main(ForkedBooter.java:74)

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