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Posted to issues@flink.apache.org by "zhijiang (JIRA)" <ji...@apache.org> on 2017/08/16 10:22:00 UTC

[jira] [Assigned] (FLINK-7456) Implement Netty sender incoming pipeline for credit-based

     [ https://issues.apache.org/jira/browse/FLINK-7456?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

zhijiang reassigned FLINK-7456:
-------------------------------

    Assignee: zhijiang

> Implement Netty sender incoming pipeline for credit-based
> ---------------------------------------------------------
>
>                 Key: FLINK-7456
>                 URL: https://issues.apache.org/jira/browse/FLINK-7456
>             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.
> On sender side, each subpartition view maintains an atomic integer {{currentCredit}} from receiver. Once receiving the messages of {{PartitionRequest}} and {{AddCredit}}, the {{currentCredit}} is added by deltas.
> Each view also maintains an atomic boolean field to mark it as registered available for transfer to make sure it is enqueued in handler only once. If the {{currentCredit}} increases from zero and there are available buffers in the subpartition, the corresponding view will be enqueued for transferring data.



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