[jira] [Commented] (FLINK-12284) InputBufferPoolUsage is incorrect in credit-based network control flow

["Piotr Nowojski (JIRA)" <ji...@apache.org>]

    [ https://issues.apache.org/jira/browse/FLINK-12284?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16858368#comment-16858368 ] 

Piotr Nowojski commented on FLINK-12284:
----------------------------------------

In the scope of this ticket, we decided to rework pool usage metrics for credit based flow control for which we will provide 3 metrics:
 * floatingBuffersUsage
 * exclusiveBuffersUsage
 * inPoolUsage - combined floating + exclusive usage

> InputBufferPoolUsage is incorrect in credit-based network control flow
> ----------------------------------------------------------------------
>
>                 Key: FLINK-12284
>                 URL: https://issues.apache.org/jira/browse/FLINK-12284
>             Project: Flink
>          Issue Type: Bug
>          Components: Runtime / Network
>    Affects Versions: 1.6.3, 1.6.4, 1.7.2, 1.8.0
>            Reporter: Xiaogang Shi
>            Assignee: Aitozi
>            Priority: Major
>              Labels: pull-request-available
>             Fix For: 1.9.0
>
>          Time Spent: 10m
>  Remaining Estimate: 0h
>
> When using credit-based network control flow, exclusive buffers are directly assigned to {{RemoteInputChannel}} and are not counted in {{LocalBufferPool}}, leading to incorrect InputBufferPoolUsage.



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