[jira] [Created] (SPARK-5079) Detect failed jobs / batches in Spark Streaming unit tests

["Josh Rosen (JIRA)" <ji...@apache.org>]

Josh Rosen created SPARK-5079:
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             Summary: Detect failed jobs / batches in Spark Streaming unit tests
                 Key: SPARK-5079
                 URL: https://issues.apache.org/jira/browse/SPARK-5079
             Project: Spark
          Issue Type: Bug
          Components: Streaming
            Reporter: Josh Rosen


Currently, it is possible to write Spark Streaming unit tests where Spark jobs fail but the streaming tests succeed because we rely on wall-clock time plus output comparision in order to check whether a test has passed, and hence may miss cases where errors occurred if they didn't affect these results.  We should strengthen the tests to check that no job failures occurred while processing batches.

See https://github.com/apache/spark/pull/3832#issuecomment-68580794 for additional context.

The StreamingTestWaiter in https://github.com/apache/spark/pull/3801 might also fix this.



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