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ASF GitHub Bot commented on FLINK-7406: --------------------------------------- Github user zhijiangW commented on the issue: https://github.com/apache/flink/pull/4509 @NicoK , I have fixed the other code issues. For UT, I only added one test for verifying there is no race condition between requesting and recycling floating buffers. I am not sure whether to control the process by `CountDownLatch` is enough. Or I should submit two different threads to execute the process repeated. If this way is ok, I will add more tests for race condition along with `NetworkBufferPool#createBufferPool()` modifications you suggested. For fair distribution of buffers test, I will add one test, maybe in this PR or in #4735 later. > Implement Netty receiver incoming pipeline for credit-based > ----------------------------------------------------------- > > Key: FLINK-7406 > URL: https://issues.apache.org/jira/browse/FLINK-7406 > Project: Flink > Issue Type: Sub-task > Components: Network > Reporter: zhijiang > Assignee: zhijiang > Fix For: 1.4.0 > > > This is a part of work for credit-based network flow control. > Currently {{PartitionRequestClientHandler}} receives and reads > {{BufferResponse}} from producer. It will request buffer from {{BufferPool}} > for holding the message. If not got, the message is staged temporarily and > {{autoread}} for channel is set false. > For credit-based mode, {{PartitionRequestClientHandler}} can always get > buffer from {{RemoteInputChannel}} for reading messages from producer. > The related works are: > * Add the backlog of producer in {{BufferResponse}} message structure > * {{PartitionRequestClientHandler}} requests buffer from > {{RemoteInputChannel}} directly > * {{PartitionRequestClientHandler}} updates backlog for > {{RemoteInputChannel}}, and it may trigger requests of floating buffers from > {{BufferPool}} -- This message was sent by Atlassian JIRA (v6.4.14#64029)