LocalSSDSolver tests should use their own tmp space to avoid collisions
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Key: MAHOUT-814
URL: https://issues.apache.org/jira/browse/MAHOUT-814
Project: Mahout
Issue Type: Bug
Reporter: Grant Ingersoll
Priority: Minor
Running Mahout in an environment with Jenkins also running and am getting:
{quote}
java.io.FileNotFoundException: /tmp/q-temp.seq (Permission denied)
at java.io.FileOutputStream.open(Native Method)
at java.io.FileOutputStream.<init>(FileOutputStream.java:209)
at
org.apache.hadoop.fs.RawLocalFileSystem$LocalFSFileOutputStream.<init>(RawLocalFileSystem.java:187)
at
org.apache.hadoop.fs.RawLocalFileSystem$LocalFSFileOutputStream.<init>(RawLocalFileSystem.java:183)
at
org.apache.hadoop.fs.RawLocalFileSystem.create(RawLocalFileSystem.java:241)
at
org.apache.hadoop.fs.ChecksumFileSystem$ChecksumFSOutputSummer.<init>(ChecksumFileSystem.java:335)
at
org.apache.hadoop.fs.ChecksumFileSystem.create(ChecksumFileSystem.java:368)
at org.apache.hadoop.fs.FileSystem.create(FileSystem.java:528)
at
org.apache.hadoop.io.SequenceFile$BlockCompressWriter.<init>(SequenceFile.java:1198)
at org.apache.hadoop.io.SequenceFile.createWriter(SequenceFile.java:401)
at org.apache.hadoop.io.SequenceFile.createWriter(SequenceFile.java:284)
at
org.apache.mahout.math.hadoop.stochasticsvd.qr.QRFirstStep.getTempQw(QRFirstStep.java:263)
at
org.apache.mahout.math.hadoop.stochasticsvd.qr.QRFirstStep.flushSolver(QRFirstStep.java:104)
at
org.apache.mahout.math.hadoop.stochasticsvd.qr.QRFirstStep.map(QRFirstStep.java:175)
at
org.apache.mahout.math.hadoop.stochasticsvd.qr.QRFirstStep.collect(QRFirstStep.java:279)
at
org.apache.mahout.math.hadoop.stochasticsvd.QJob$QMapper.map(QJob.java:142)
at
org.apache.mahout.math.hadoop.stochasticsvd.QJob$QMapper.map(QJob.java:71)
at org.apache.hadoop.mapreduce.Mapper.run(Mapper.java:144)
at org.apache.hadoop.mapred.MapTask.runNewMapper(MapTask.java:764)
at org.apache.hadoop.mapred.MapTask.run(MapTask.java:370)
at
org.apache.hadoop.mapred.LocalJobRunner$Job.run(LocalJobRunner.java:212)
{quote}
Also seeing the following tests fail:
{quote}
Tests in error:
testSSVDSolverSparse(org.apache.mahout.math.hadoop.stochasticsvd.LocalSSVDSolverSparseSequentialTest):
Q job unsuccessful.
testSSVDSolverPowerIterations1(org.apache.mahout.math.hadoop.stochasticsvd.LocalSSVDSolverSparseSequentialTest):
Q job unsuccessful.
testSSVDSolverPowerIterations1(org.apache.mahout.math.hadoop.stochasticsvd.LocalSSVDSolverDenseTest):
Q job unsuccessful.
testSSVDSolverDense(org.apache.mahout.math.hadoop.stochasticsvd.LocalSSVDSolverDenseTest):
Q job unsuccessful.
{quote}
I haven't checked all of them, but I suspect they are all due to the same
reason. We should dynamically create a temp area for each test using temporary
directories under the main temp dir.
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