[ https://issues.apache.org/jira/browse/FLINK-7394?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16167584#comment-16167584 ]
ASF GitHub Bot commented on FLINK-7394: --------------------------------------- Github user NicoK commented on a diff in the pull request: https://github.com/apache/flink/pull/4499#discussion_r136056661 --- Diff: flink-runtime/src/main/java/org/apache/flink/runtime/io/network/partition/consumer/RemoteInputChannel.java --- @@ -72,6 +79,21 @@ */ private int expectedSequenceNumber = 0; + /** The initial number of exclusive buffers assigned to this channel. */ + private int initialCredit; + + /** The current available exclusive buffers and requested floating buffers from buffer pool. */ + private final Queue<Buffer> availableBuffers = new ArrayDeque<>(); + + /** The number of available buffers that have not unannounced to producer yet. */ + private final AtomicInteger unannouncedCredit = new AtomicInteger(0); + + /** The number of unsent buffers in producer's sub partition. */ + private final AtomicInteger currentSenderBacklog = new AtomicInteger(0); + + /** The tag indicates whether this channel is waiting additional floating buffers from buffer pool. */ --- End diff -- `...waiting for additional floating buffers from the buffer pool` > 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: > * 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. -- This message was sent by Atlassian JIRA (v6.4.14#64029)