[jira] [Created] (SPARK-32506) flaky test: pyspark.mllib.tests.test_streaming_algorithms.StreamingLinearRegressionWithTests

["Wenchen Fan (Jira)" <ji...@apache.org>]

Wenchen Fan created SPARK-32506:
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             Summary: flaky test: pyspark.mllib.tests.test_streaming_algorithms.StreamingLinearRegressionWithTests
                 Key: SPARK-32506
                 URL: https://issues.apache.org/jira/browse/SPARK-32506
             Project: Spark
          Issue Type: Test
          Components: MLlib
    Affects Versions: 3.1.0
            Reporter: Wenchen Fan


{code}
FAIL: test_train_prediction (pyspark.mllib.tests.test_streaming_algorithms.StreamingLinearRegressionWithTests)
Test that error on test data improves as model is trained.
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/home/runner/work/spark/spark/python/pyspark/mllib/tests/test_streaming_algorithms.py", line 466, in test_train_prediction
    eventually(condition, timeout=180.0)
  File "/home/runner/work/spark/spark/python/pyspark/testing/utils.py", line 81, in eventually
    lastValue = condition()
  File "/home/runner/work/spark/spark/python/pyspark/mllib/tests/test_streaming_algorithms.py", line 461, in condition
    self.assertGreater(errors[1] - errors[-1], 2)
AssertionError: 1.672640157855923 not greater than 2
{code}



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