[BEAM-3007] Add Flatten test for PCollections with multiple consumers

• Type: Improvement
• Status: Resolved
• Priority: P2
• Resolution: Fixed
• Fix Version/s: 2.2.0
• Component/s: sdk-java-core
• Labels: Done
• Assignee: Luke Cwik
• Reporter: Luke Cwik
• Created: 02/Oct/17 18:31
• Updated: 06/Oct/20 21:56
• Resolved: 03/Oct/17 18:53

Description

SO user reported incorrect graph execution behavior where edges were disappearing for any PCollection that was consumed by a Flatten and another instruction:

https://stackoverflow.com/questions/46497420/unexpected-behavior-change-from-dataflow-1-9-to-2-0-2-1#46497420

Issue Links

• links to: GitHub Pull Request #3931