Jamie Grier created FLINK-6199:
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Summary: Single outstanding Async I/O operation per key
Key: FLINK-6199
URL: https://issues.apache.org/jira/browse/FLINK-6199
Project: Flink
Issue Type: Improvement
Components: DataStream API
Reporter: Jamie Grier
I would like to propose we extend the Async I/O semantics a bit such that a
user can guarantee a single outstanding async request per key.
This would allow a user to order async requests per key while still achieving
the throughput benefits of using Async I/O in the first place.
This is essential for operations where stream order is important but we still
need to use Async operations to interact with an external system in a
performant way.
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