Stephan Ewen created FLINK-9809:
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Summary: Support setting CoLocation constraints on the DataStream
Transformations
Key: FLINK-9809
URL: https://issues.apache.org/jira/browse/FLINK-9809
Project: Flink
Issue Type: Improvement
Components: Streaming
Reporter: Stephan Ewen
Assignee: Stephan Ewen
Fix For: 1.6.0
Flink supports co location constraints for operator placement during
scheduling. This is used internally for iterations, for example, but is not
exposed to users.
I propose to add a way for expert users to set these constraints. As a first
step, I would add them to the {{StreamTransformation}}, which is not part of
the public user-facing classes, but a more internal class in the DataStream
API. That way we make this initially a hidden feature and can gradually expose
it more prominently when we agree that this would be a good idea.
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