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Posted to issues@spark.apache.org by "Hyukjin Kwon (Jira)" <ji...@apache.org> on 2020/06/11 03:59:00 UTC

[jira] [Created] (SPARK-31966) Flaky test: pyspark.mllib.tests.test_streaming_algorithms StreamingLogisticRegressionWithSGDTests.test_training_and_prediction

Hyukjin Kwon created SPARK-31966:
------------------------------------

             Summary: Flaky test: pyspark.mllib.tests.test_streaming_algorithms StreamingLogisticRegressionWithSGDTests.test_training_and_prediction
                 Key: SPARK-31966
                 URL: https://issues.apache.org/jira/browse/SPARK-31966
             Project: Spark
          Issue Type: Test
          Components: MLlib, PySpark
    Affects Versions: 3.0.0
            Reporter: Hyukjin Kwon
            Assignee: Hyukjin Kwon
             Fix For: 3.0.0


Looks this test is flaky

https://amplab.cs.berkeley.edu/jenkins/job/SparkPullRequestBuilder/99704/console
https://amplab.cs.berkeley.edu/jenkins/job/SparkPullRequestBuilder/99569/console
https://amplab.cs.berkeley.edu/jenkins/job/SparkPullRequestBuilder/99644/console
https://amplab.cs.berkeley.edu/jenkins/job/SparkPullRequestBuilder/99548/console
https://amplab.cs.berkeley.edu/jenkins/job/SparkPullRequestBuilder/99454/console
https://amplab.cs.berkeley.edu/jenkins/job/SparkPullRequestBuilder/99609/console

{code}
======================================================================
FAIL: test_training_and_prediction (pyspark.mllib.tests.test_streaming_algorithms.StreamingLogisticRegressionWithSGDTests)
Test that the model improves on toy data with no. of batches
----------------------------------------------------------------------
Traceback (most recent call last):
  File "/home/jenkins/workspace/SparkPullRequestBuilder/python/pyspark/mllib/tests/test_streaming_algorithms.py", line 367, in test_training_and_prediction
    self._eventually(condition)
  File "/home/jenkins/workspace/SparkPullRequestBuilder/python/pyspark/mllib/tests/test_streaming_algorithms.py", line 78, in _eventually
    % (timeout, lastValue))
AssertionError: Test failed due to timeout after 30 sec, with last condition returning: Latest errors: 0.67, 0.71, 0.78, 0.7, 0.75, 0.74, 0.73, 0.69, 0.62, 0.71, 0.69, 0.75, 0.72, 0.77, 0.71, 0.74

----------------------------------------------------------------------
Ran 13 tests in 185.051s

FAILED (failures=1, skipped=1)
{code}

This looks happening after increasing the parallelism in Jenkins to speed up. I am able to reproduce this manually when the resource usage is heavy with manual decrease of timeout.



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