Daniel Oliveira created BEAM-10228:
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Summary: Reshuffle seems to be dropping elements in streaming
Dataflow pipeline.
Key: BEAM-10228
URL: https://issues.apache.org/jira/browse/BEAM-10228
Project: Beam
Issue Type: Bug
Components: runner-dataflow, sdk-java-harness
Reporter: Daniel Oliveira
https://stackoverflow.com/questions/62017572/beam-java-dataflow-bigquery-streaming-insert-groupbykey-reducing-elements
This showed up on SO and it shows a GBK in a reshuffle actually dropping
elements. I asked the user if they've tried it on other runners, and from what
I understood they tried with the Direct runner but never got to the point in
the pipeline where the original issue occurred, so it's hard to tell if this is
a runner or SDK issue. The user has also contacted Dataflow support.
Not sure if this is high priority or not or who would be an appropriate
assignee, so I'll just leave the bug unassigned for future reference, so if
this pops up again there's evidence that it's been a problem.
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