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From Sean Owen <sro...@gmail.com>
Subject Re: Intermittant Test Failure: testTranspose(org.apache.mahout.math.hadoop.TestDistributedRowMatrix)
Date Thu, 29 Apr 2010 22:49:12 GMT
I had taken on MAHOUT-302 which is basically about overhauling how
temp data is handled for tests. I think we can indeed handle it more
cleanly and in a way such that collisions never happen. I'm still in
the middle of it.

On Thu, Apr 29, 2010 at 11:38 PM, Ted Dunning <ted.dunning@gmail.com> wrote:
> Any chance to use a new name?
>
> On Thu, Apr 29, 2010 at 3:36 PM, Jeff Eastman <jdog@windwardsolutions.com>wrote:
>
>> The surfire report seems to indicate this might be a timing problem with
>> hdfs being lazy. Sometimes it passes and sometimes it fails, but of course,
>> right at the end of the 15 min core tests which makes it especially
>> annoying. Any resolution possible?
>>
>>
>> -------------------------------------------------------------------------------
>> Test set: org.apache.mahout.math.hadoop.TestDistributedRowMatrix
>>
>> -------------------------------------------------------------------------------
>> Tests run: 4, Failures: 0, Errors: 1, Skipped: 0, Time elapsed: 5.828 sec
>> <<< FAILURE!
>> testTranspose(org.apache.mahout.math.hadoop.TestDistributedRowMatrix)  Time
>> elapsed: 1.507 sec <<< ERROR!
>> java.lang.RuntimeException:
>> org.apache.hadoop.mapred.FileAlreadyExistsException: Output directory
>> file:/Users/jeff/Documents/workspace/MahoutTrunk/core/testdata/transpose-72
>> already exists
>>        at
>> org.apache.mahout.math.hadoop.DistributedRowMatrix.transpose(DistributedRowMatrix.java:163)
>>        at
>> org.apache.mahout.math.hadoop.TestDistributedRowMatrix.testTranspose(TestDistributedRowMatrix.java:93)
>>        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 junit.framework.TestCase.runTest(TestCase.java:168)
>>        at junit.framework.TestCase.runBare(TestCase.java:134)
>>        at junit.framework.TestResult$1.protect(TestResult.java:110)
>>        at junit.framework.TestResult.runProtected(TestResult.java:128)
>>
>>
>

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