Implement combine with context in new spark runner
- Dominant language
- Java
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Description
Validates runner tests below fail in spark structured streaming runner because combine with context (for side inputs) is not implemented:
'org.apache.beam.sdk.transforms.CombineFnsTest.testComposedCombineWithContext''org.apache.beam.sdk.transforms.CombineTest$CombineWithContextTests.testSimpleCombineWithContext''org.apache.beam.sdk.transforms.CombineTest$CombineWithContextTests.testSimpleCombineWithContextEmpty''org.apache.beam.sdk.transforms.CombineTest$WindowingTests.testFixedWindowsCombineWithContext''org.apache.beam.sdk.transforms.CombineTest$WindowingTests.testSessionsCombineWithContext''org.apache.beam.sdk.transforms.CombineTest$WindowingTests.testSlidingWindowsCombineWithContext'
Imported from Jira [BEAM-8860](https://issues.apache.org/jira/browse/BEAM-8860). Original Jira may contain additional context.
Reported by: echauchot.
Contributor guide
Research direction
Start by running the listed CombineFnsTest, CombineTest$CombineWithContextTests, and CombineTest$WindowingTests cases against the Spark structured streaming runner. Read the runner's existing combine support and use these failures to locate the missing context handling; done means all six named tests pass.
Written by the indexing model from the issue text.
Assessment
- Tech stack
- java, spark
- Domain
- distributed-systems, stream-processing
- Issue type
- Feature
- Difficulty
- 4/5
- Estimated time
- 3-5 days
- Activity status
- Stale
- Clarity
- Mostly clear
- Newbie friendliness
- 45/100