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Posted to issues@flink.apache.org by "Piotr Nowojski (JIRA)" <ji...@apache.org> on 2019/06/27 10:01:00 UTC

[jira] [Created] (FLINK-13013) Make sure that SingleInputGate can always request partitions

Piotr Nowojski created FLINK-13013:
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             Summary: Make sure that SingleInputGate can always request partitions
                 Key: FLINK-13013
                 URL: https://issues.apache.org/jira/browse/FLINK-13013
             Project: Flink
          Issue Type: Sub-task
          Components: Runtime / Network
            Reporter: Piotr Nowojski
            Assignee: Piotr Nowojski


Currently {{SingleInputGate}} requests partitions only on the first attempt to fetch the data. Before requesting partitions, no data availability notifications can get through. This doesn't work well with a new non blocking {{InputGate}} interface, since on newly created {{SingleInputGates,}} {{InputGate#isAvailable()}} might return not available, and it will be only able to switch to available, after first call to {{SingleInputGate#pollNext()}}.



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