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https://issues.apache.org/jira/browse/FLINK-7699?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16182815#comment-16182815
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ASF GitHub Bot commented on FLINK-7699:
---------------------------------------
Github user NicoK commented on a diff in the pull request:
https://github.com/apache/flink/pull/4735#discussion_r141392529
--- Diff:
flink-runtime/src/main/java/org/apache/flink/runtime/io/network/partition/consumer/RemoteInputChannel.java
---
@@ -87,6 +88,12 @@
/** The number of available buffers that have not been announced to the
producer yet. */
private final AtomicInteger unannouncedCredit = new AtomicInteger(0);
+ /** The number of unsent buffers in the producer's sub partition. */
+ private final AtomicInteger senderBacklog = new AtomicInteger(0);
+
+ /** The tag indicates whether this channel is waiting for additional
floating buffers from the buffer pool. */
+ private final AtomicBoolean isWaitingFloatingBuffers = new
AtomicBoolean(false);
--- End diff --
better: `isWaitingForFloatingBuffers`
> Define the BufferListener interface to replace EventlListener in
> BufferProvider
> -------------------------------------------------------------------------------
>
> Key: FLINK-7699
> URL: https://issues.apache.org/jira/browse/FLINK-7699
> Project: Flink
> Issue Type: Sub-task
> Components: Core
> Reporter: zhijiang
> Assignee: zhijiang
> Fix For: 1.4.0
>
>
> Currently the {{EventListener}} is used in {{BufferProvider}} to be notified
> of buffer available or destroyed pool.
> To be semantic clearly, we define a new {{BufferListener}} interface which
> can opt for a one-time only notification or to be notified repeatedly. And we
> can also notify the pool destroyed via explicitly method
> {{notifyBufferDestroyed}}.
> The {{RemoteInputChannel}} will implement the {{BufferListener}} interface to
> wait for floating buffers from {{BufferProvider}}.
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