[IGNITE-10209] some tests in IgniteExamplesMLTestSuite fail with FileNotFoundException at SandboxMLCache#fillCacheWith(MLSandboxDatasets)

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Fixed
• Affects Version/s: 2.8
• Fix Version/s: 2.8
• Component/s: ml
• Assignee: Oleg Ignatenko
• Reporter: Oleg Ignatenko
• Created: 09/Nov/18 14:36
• Updated: 19/Nov/18 16:50
• Resolved: 11/Nov/18 20:05

Description

Tests for examples that use SandboxMLCache#fillCacheWith(MLSandboxDatasets) fail with FNFE:

[ERROR] Tests run: 34, Failures: 0, Errors: 13, Skipped: 0, Time elapsed: 638.752 s <<< FAILURE! - in org.apache.ignite.testsuites.IgniteExamplesMLTestSuite
[ERROR] testExample(org.apache.ignite.examples.ml.KMeansClusterizationExampleSelfName)  Time elapsed: 21.701 s  <<< ERROR!
java.io.FileNotFoundException: examples\src\main\resources\datasets\two_classed_iris.csv (Системе не удается найти указанный путь)
        at org.apache.ignite.examples.ml.KMeansClusterizationExampleSelfName.testExample(KMeansClusterizationExampleSelfName.java)

[ERROR] testExample(org.apache.ignite.examples.ml.KNNClassificationExampleSelfName)  Time elapsed: 13.81 s  <<< ERROR!
java.io.FileNotFoundException: examples\src\main\resources\datasets\iris.txt (Системе не удается найти указанный путь)
        at org.apache.ignite.examples.ml.KNNClassificationExampleSelfName.testExample(KNNClassificationExampleSelfName.java)

[ERROR] testExample(org.apache.ignite.examples.ml.KNNRegressionExampleSelfName)  Time elapsed: 13.633 s  <<< ERROR!
java.io.FileNotFoundException: examples\src\main\resources\datasets\cleared_machines.csv (Системе не удается найти указанный путь)
        at org.apache.ignite.examples.ml.KNNRegressionExampleSelfName.testExample(KNNRegressionExampleSelfName.java)

[ERROR] testExample(org.apache.ignite.examples.ml.LinearRegressionLSQRTrainerExampleSelfName)  Time elapsed: 13.71 s  <<< ERROR!
java.io.FileNotFoundException: examples\src\main\resources\datasets\mortalitydata.csv (Системе не удается найти указанный путь)
        at org.apache.ignite.examples.ml.LinearRegressionLSQRTrainerExampleSelfName.testExample(LinearRegressionLSQRTrainerExampleSelfName.java)

[ERROR] testExample(org.apache.ignite.examples.ml.LinearRegressionLSQRTrainerWithMinMaxScalerExampleSelfName)  Time elapsed: 13.728 s  <<< ERROR!
java.io.FileNotFoundException: examples\src\main\resources\datasets\mortalitydata.csv (Системе не удается найти указанный путь)
        at org.apache.ignite.examples.ml.LinearRegressionLSQRTrainerWithMinMaxScalerExampleSelfName.testExample(LinearRegressionLSQRTrainerWithMinMaxScalerExampleSelfName.java)

[ERROR] testExample(org.apache.ignite.examples.ml.LinearRegressionSGDTrainerExampleSelfName)  Time elapsed: 13.874 s  <<< ERROR!
java.io.FileNotFoundException: examples\src\main\resources\datasets\mortalitydata.csv (Системе не удается найти указанный путь)
        at org.apache.ignite.examples.ml.LinearRegressionSGDTrainerExampleSelfName.testExample(LinearRegressionSGDTrainerExampleSelfName.java)

[ERROR] testExample(org.apache.ignite.examples.ml.LogisticRegressionSGDTrainerExampleSelfName)  Time elapsed: 13.694 s  <<< ERROR!
java.io.FileNotFoundException: examples\src\main\resources\datasets\two_classed_iris.csv (Системе не удается найти указанный путь)
        at org.apache.ignite.examples.ml.LogisticRegressionSGDTrainerExampleSelfName.testExample(LogisticRegressionSGDTrainerExampleSelfName.java)

[ERROR] testExample(org.apache.ignite.examples.ml.LogRegressionMultiClassClassificationExampleSelfName)  Time elapsed: 13.823 s  <<< ERROR!
java.io.FileNotFoundException: examples\src\main\resources\datasets\glass_identification.csv (Системе не удается найти указанный путь)
        at org.apache.ignite.examples.ml.LogRegressionMultiClassClassificationExampleSelfName.testExample(LogRegressionMultiClassClassificationExampleSelfName.java)

[ERROR] testExample(org.apache.ignite.examples.ml.TrainTestDatasetSplitterExampleSelfName)  Time elapsed: 12.875 s  <<< ERROR!
java.io.FileNotFoundException: examples\src\main\resources\datasets\mortalitydata.csv (Системе не удается найти указанный путь)
        at org.apache.ignite.examples.ml.TrainTestDatasetSplitterExampleSelfName.testExample(TrainTestDatasetSplitterExampleSelfName.java)

[ERROR] testExample(org.apache.ignite.examples.ml.SVMBinaryClassificationExampleSelfName)  Time elapsed: 12.795 s  <<< ERROR!
java.io.FileNotFoundException: examples\src\main\resources\datasets\two_classed_iris.csv (Системе не удается найти указанный путь)
        at org.apache.ignite.examples.ml.SVMBinaryClassificationExampleSelfName.testExample(SVMBinaryClassificationExampleSelfName.java)

[ERROR] testExample(org.apache.ignite.examples.ml.SVMMultiClassClassificationExampleSelfName)  Time elapsed: 12.948 s  <<< ERROR!
java.io.FileNotFoundException: examples\src\main\resources\datasets\glass_identification.csv (Системе не удается найти указанный путь)
        at org.apache.ignite.examples.ml.SVMMultiClassClassificationExampleSelfName.testExample(SVMMultiClassClassificationExampleSelfName.java)

[ERROR] testExample(org.apache.ignite.examples.ml.RandomForestClassificationExampleSelfName)  Time elapsed: 13.613 s  <<< ERROR!
java.io.FileNotFoundException: examples\src\main\resources\datasets\wine.txt (Системе не удается найти указанный путь)
        at org.apache.ignite.examples.ml.RandomForestClassificationExampleSelfName.testExample(RandomForestClassificationExampleSelfName.java)

[ERROR] testExample(org.apache.ignite.examples.ml.RandomForestRegressionExampleSelfName)  Time elapsed: 13.601 s  <<< ERROR!
java.io.FileNotFoundException: examples\src\main\resources\datasets\boston_housing_dataset.txt (Системе не удается найти указанный путь)
        at org.apache.ignite.examples.ml.RandomForestRegressionExampleSelfName.testExample(RandomForestRegressionExampleSelfName.java)

Note that this is reproducible only from test suite; when involved examples execute standalone (by invoking main) needed files are successfully discovered and everything runs okay.

Issue Links

• blocks: IGNITE-10174 migrate examples tests from Junit 3 to 4
• is broken by: IGNITE-9910 [ML] Move the static copy-pasted datasets from examples to special Util class
• relates to: IGNITE-10335 move ML examples datasets files to resources
• links to: GitHub Pull Request #5359
• links to: TC build
• links to: Upsource review