[jira] [Created] (SPARK-26945) Python streaming tests flaky while cleaning temp directories after StreamingQuery.stop

["Alessandro Bellina (JIRA)" <ji...@apache.org>]

Alessandro Bellina created SPARK-26945:
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             Summary: Python streaming tests flaky while cleaning temp directories after StreamingQuery.stop
                 Key: SPARK-26945
                 URL: https://issues.apache.org/jira/browse/SPARK-26945
             Project: Spark
          Issue Type: Bug
          Components: PySpark
    Affects Versions: 2.4.0
            Reporter: Alessandro Bellina


From the test code, it seems like the `shmutil.rmtree` function is trying to delete a directory, but there's likely another thread adding entries to a directory, so when it gets to `os.rmdir(path)` it blows up. I think the test (and other streaming tests) should call `q.awaitTermination` after `q.stop`, before going on. I'll file a separate jira.
{noformat}
ERROR: test_query_manager_await_termination (pyspark.sql.tests.test_streaming.StreamingTests)
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Traceback (most recent call last):
 File "/home/jenkins/workspace/SparkPullRequestBuilder/python/pyspark/sql/tests/test_streaming.py", line 259, in test_query_manager_await_termination
 shutil.rmtree(tmpPath)
 File "/home/anaconda/lib/python2.7/shutil.py", line 256, in rmtree
 onerror(os.rmdir, path, sys.exc_info())
 File "/home/anaconda/lib/python2.7/shutil.py", line 254, in rmtree
 os.rmdir(path)
OSError: [Errno 39] Directory not empty: '/home/jenkins/workspace/SparkPullRequestBuilder/python/target/072153bd-f981-47be-bda2-e2b657a16f65/tmp4WGp7n'{noformat}



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