[jira] [Created] (FLINK-12738) Remove abstract getPageSize from InputGate

[Shang Yuanchun (Jira)]

zhijiang created FLINK-12738:
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             Summary: Remove abstract getPageSize from InputGate
                 Key: FLINK-12738
                 URL: https://issues.apache.org/jira/browse/FLINK-12738
             Project: Flink
          Issue Type: Sub-task
          Components: Runtime / Network
            Reporter: zhijiang
            Assignee: zhijiang


Currently {{InputGate#getPageSize}} is only used for constructing {{BarrierBuffer}}. In order to make abstract InputGate simple and clean, we should remove unnecessary abstract methods from it.

Considering the page size could be parsed directly from configuration which could also visible while constructing {{BarrierBuffer}}, so it is reasonable to do so.



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