[jira] [Updated] (FLINK-14815) Expose network metric in IOMetricsInfo

["lining (Jira)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/FLINK-14815?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

lining updated FLINK-14815:
---------------------------
    Summary: Expose network metric in IOMetricsInfo  (was: Expose network pool usage in IOMetricsInfo)

> Expose network metric in IOMetricsInfo
> --------------------------------------
>
>                 Key: FLINK-14815
>                 URL: https://issues.apache.org/jira/browse/FLINK-14815
>             Project: Flink
>          Issue Type: Sub-task
>          Components: Runtime / Metrics, Runtime / Network, Runtime / REST
>            Reporter: lining
>            Assignee: lining
>            Priority: Major
>
> * If sub task is not back pressured, but it is causing a back pressure (full input, empty output)
>  * By comparing exclusive/floating buffers usage, whether all channels are back-pressured or only some of them
> {code:java}
> public final class IOMetricsInfo {
>     private final float outPoolUsage;
>     private final float inputExclusiveBuffersUsage;
>     private final float inputFloatingBuffersUsage;
> }
> {code}
> JobDetailsInfo.JobVertexDetailsInfo merge use Math.max.(ps: outPoolUsage is from upstream)



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