[ 
https://issues.apache.org/jira/browse/FLINK-7468?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16269117#comment-16269117
 ] 

ASF GitHub Bot commented on FLINK-7468:
---------------------------------------

Github user NicoK commented on a diff in the pull request:

    https://github.com/apache/flink/pull/4559#discussion_r153564111
  
    --- Diff: 
flink-runtime/src/test/java/org/apache/flink/runtime/io/network/netty/CancelPartitionRequestTest.java
 ---
    @@ -174,19 +175,21 @@ public ResultSubpartitionView answer(InvocationOnMock 
invocationOnMock) throws T
     
        // 
---------------------------------------------------------------------------------------------
     
    -   static class InfiniteSubpartitionView implements ResultSubpartitionView 
{
    +   static class InfiniteSubpartitionView extends ResultSubpartitionView {
     
                private final BufferProvider bufferProvider;
     
                private final CountDownLatch sync;
     
                public InfiniteSubpartitionView(BufferProvider bufferProvider, 
CountDownLatch sync) {
    +                   super(mock(ResultSubpartition.class));
    +
                        this.bufferProvider = checkNotNull(bufferProvider);
                        this.sync = checkNotNull(sync);
                }
     
                @Override
    -           public Buffer getNextBuffer() throws IOException, 
InterruptedException {
    +           public Buffer getNextBufferInternal() throws IOException, 
InterruptedException {
    --- End diff --
    
    make this `protected`


> Implement sender backlog logic for credit-based
> -----------------------------------------------
>
>                 Key: FLINK-7468
>                 URL: https://issues.apache.org/jira/browse/FLINK-7468
>             Project: Flink
>          Issue Type: Sub-task
>          Components: Network
>            Reporter: zhijiang
>            Assignee: zhijiang
>             Fix For: 1.5.0
>
>
> This is a part of work for credit-based network flow control.
> Receivers should know how many buffers are available on the sender side (the 
> backlog). The receivers use this information to decide how to distribute 
> floating buffers.
> The {{ResultSubpartition}} maintains the backlog which only indicates the 
> number of buffers in this subpartition, not including the number of events. 
> The backlog is increased for adding buffer to this subpartition, and 
> decreased for polling buffer from it.
> The backlog is attached in {{BufferResponse}} by sender as an absolute value 
> after the buffer being transferred.



--
This message was sent by Atlassian JIRA
(v6.4.14#64029)

Reply via email to