[jira] [Created] (FLINK-10331) Fix unnecessary flush requests to the network stack

["Nico Kruber (JIRA)" <ji...@apache.org>]

Nico Kruber created FLINK-10331:
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             Summary: Fix unnecessary flush requests to the network stack
                 Key: FLINK-10331
                 URL: https://issues.apache.org/jira/browse/FLINK-10331
             Project: Flink
          Issue Type: Sub-task
          Components: Network
    Affects Versions: 1.6.0, 1.5.3, 1.5.2, 1.5.1, 1.5.0, 1.7.0
            Reporter: Nico Kruber
            Assignee: Nico Kruber


With the re-design of the record writer interaction with the result(sub)partitions, flush requests can currently pile up in these scenarios_
- a previous flush request has not been handled yet and is still enqueued or
- the network stack is still polling from this subpartition and doesn't need a new notification

These lead to increased notifications in low latency settings (low output flusher intervals) which can be avoided.



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