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https://issues.apache.org/jira/browse/SPARK-9461?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=14648552#comment-14648552
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Jeremy Freeman commented on SPARK-9461:
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Ah, great to hear!
> Possibly slightly flaky PySpark StreamingLinearRegressionWithTests
> ------------------------------------------------------------------
>
> Key: SPARK-9461
> URL: https://issues.apache.org/jira/browse/SPARK-9461
> Project: Spark
> Issue Type: Bug
> Components: MLlib, PySpark
> Affects Versions: 1.5.0
> Reporter: Joseph K. Bradley
> Assignee: Jeremy Freeman
>
> [~freeman-lab]
> Check out this failure:
> [https://amplab.cs.berkeley.edu/jenkins/job/SparkPullRequestBuilder/38913/consoleFull]
> It should be deterministic, but do you think it's just slight variations
> caused by the Python version? Or do you think it's something odd going on
> with streaming? This is the only time I've seen this happen, but I'll post
> again if I see it more.
> Test failure message:
> {code}
> ======================================================================
> FAIL: test_parameter_accuracy (__main__.StreamingLinearRegressionWithTests)
> Test that coefs are predicted accurately by fitting on toy data.
> ----------------------------------------------------------------------
> Traceback (most recent call last):
> File
> "/home/jenkins/workspace/SparkPullRequestBuilder/python/pyspark/mllib/tests.py",
> line 1282, in test_parameter_accuracy
> slr.latestModel().weights.array, [10., 10.], 1)
> File
> "/home/jenkins/workspace/SparkPullRequestBuilder/python/pyspark/mllib/tests.py",
> line 1257, in assertArrayAlmostEqual
> self.assertAlmostEqual(i, j, dec)
> AssertionError: 9.4243238731093655 != 9.3216175551722014 within 1 places
> {code}
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