[IGNITE-6315] Exception during DistributedRegressionExample (ML)

• Type: Bug
• Status: Resolved
• Priority: Major
• Resolution: Duplicate
• Affects Version/s: 2.1
• Fix Version/s: 2.3
• Component/s: general
• Assignee: Yury Babak
• Reporter: Ilya Suntsov
• Created: 08/Sep/17 13:37
• Updated: 11/Sep/17 13:18
• Resolved: 11/Sep/17 13:18

Description

When I tried to start

examples/src/main/ml/org/apache/ignite/examples/ml/math/regression/DistributedRegressionExample.java

I got exception:

>>> Ignite grid started.
>>> Create new SparseDistributedMatrix inside IgniteThread.
>>> Create new linear regression object
Exception in thread "SparseDistributedMatrixExample-#36%null%" class org.apache.ignite.ml.math.exceptions.UnsupportedOperationException: Unsupported operation.
	at org.apache.ignite.ml.math.impls.matrix.SparseDistributedMatrix.likeVector(SparseDistributedMatrix.java:146)
	at org.apache.ignite.ml.math.util.MatrixUtil.likeVector(MatrixUtil.java:87)
	at org.apache.ignite.ml.regressions.AbstractMultipleLinearRegression.newSampleData(AbstractMultipleLinearRegression.java:126)
	at org.apache.ignite.ml.regressions.OLSMultipleLinearRegression.newSampleData(OLSMultipleLinearRegression.java:96)
	at org.apache.ignite.examples.ml.math.regression.DistributedRegressionExample.lambda$main$0(DistributedRegressionExample.java:115)
	at org.apache.ignite.examples.ml.math.regression.DistributedRegressionExample$$Lambda$1/600958416.run(Unknown Source)
	at java.lang.Thread.run(Thread.java:745)

Issue Links

• is part of: IGNITE-6328 in ML examples, class ExampleMatrixStorage doesn't compile
• relates to: IGNITE-6222 Adapt Linear regression for distributed environment