Tathagata Das created SPARK-14833:
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Summary: Refactor StreamTests to test for source fault-tolerance
correctly.
Key: SPARK-14833
URL: https://issues.apache.org/jira/browse/SPARK-14833
Project: Spark
Issue Type: Sub-task
Reporter: Tathagata Das
Assignee: Tathagata Das
Current StreamTest allows testing of a streaming Dataset generated explicitly
wraps a source. This is different from the actual production code path where
the source object is dynamically created through a DataSource object every time
a query is started. So all the fault-tolerance testing in FileSourceSuite and
FileSourceStressSuite is not really testing the actual code path as they are
just reusing the FileStreamSource object.
Instead of maintaining a mapping of source --> expected offset in StreamTest
(which requires reuse of source object), it should maintain a mapping of source
index --> offset, so that it is independent of the source object.
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