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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