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https://issues.apache.org/jira/browse/FLINK-7394?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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zhijiang updated FLINK-7394:
----------------------------
    Description: 
This is a part of work for credit-based network flow control. 

The basic works are:

* Exclusive buffers are assigned to {{RemoteInputChannel}} after created by 
{{SingleInputGate}}.
* {{RemoteInputChannel}} implements {{BufferRecycler}} interface to manage the 
exclusive buffers itself.

  was:
This is a part of work for credit-based network flow control. 

The basic works are:

* Propose the {{BufferListener}} interface for notifying buffer availability 
and buffer destroyed.
* {{RemoteInputChannel}} implements {{BufferRecycler}} interface to manage the 
exclusive buffers itself.
* {{RemoteInputChannel}} implements {{BufferListener}} interface to be notified 
repeatedly .
* {{RemoteInputChannel}} maintains and notifies of unannounced credit.
* {{RemoteInputChannel}} maintains current sender backlog to trigger requests 
of floating buffers.



> Implement basic InputChannel for credit-based logic
> ---------------------------------------------------
>
>                 Key: FLINK-7394
>                 URL: https://issues.apache.org/jira/browse/FLINK-7394
>             Project: Flink
>          Issue Type: Sub-task
>          Components: Core
>            Reporter: zhijiang
>            Assignee: zhijiang
>             Fix For: 1.4.0
>
>
> This is a part of work for credit-based network flow control. 
> The basic works are:
> * Exclusive buffers are assigned to {{RemoteInputChannel}} after created by 
> {{SingleInputGate}}.
> * {{RemoteInputChannel}} implements {{BufferRecycler}} interface to manage 
> the exclusive buffers itself.



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