Timo Walther created FLINK-21392:
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Summary: Support to block in connected streams
Key: FLINK-21392
URL: https://issues.apache.org/jira/browse/FLINK-21392
Project: Flink
Issue Type: New Feature
Components: API / DataStream
Reporter: Timo Walther
In many scenarios that involve control streams when using connected streams,
users would like to wait until stream A is "ready" before processing the stream
B.
Internally we already provide input selectable semantics but with problems
around checkpointing. Once those problems are solved, we should expose this
functionality in the main API.
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