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From "ASF GitHub Bot (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (FLINK-7406) Implement Netty receiver incoming pipeline for credit-based
Date Wed, 27 Sep 2017 10:01:19 GMT

    [ https://issues.apache.org/jira/browse/FLINK-7406?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16182298#comment-16182298

ASF GitHub Bot commented on FLINK-7406:

Github user zhijiangW commented on the issue:

    @NicoK , thanks for your reviews!
    Actually there are still two PRs under submitted before this PR. One is for floating buffer
interaction between `RemoteInputChannel` and `BufferPool`, the other is `onSenderBacklog`
logic in `RemoteInputChannel`. 
    I will submit both of them this week and also rebase this PR based on your comments.

> 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}}

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