zhijiang created FLINK-7416:
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Summary: Implement Netty receiver outgoing pipeline for
credit-based
Key: FLINK-7416
URL: https://issues.apache.org/jira/browse/FLINK-7416
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.
The related works are :
* The {{InputChannel}} notifies the initial credit which equals to the number
of exclusive buffers per channel via {{PartitionRequest}} message.
* We define another message called {{AddCredit}} to notify the incremental
credit during data shuffle.
* Whenever an {{InputChannel}}’s unannounced credit goes up from zero, the
channel is enqueued in the pipeline.
* Whenever the channel becomes writable, it takes the next {{InputChannel}} and
sends its unannounced credit. The credit is reset to zero after each sent.
* That way, messages are sent as often as the network has capacity and contain
as much credit as available for the channel at that point in time. Otherwise,
it would only add latency to the announcements and not increase throughput.
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