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Posted to issues@flink.apache.org by "Andrey Zagrebin (JIRA)" <ji...@apache.org> on 2019/05/24 09:20:00 UTC

[jira] [Updated] (FLINK-12576) inputQueueLength metric does not work for LocalInputChannels

     [ https://issues.apache.org/jira/browse/FLINK-12576?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Andrey Zagrebin updated FLINK-12576:
------------------------------------
    Component/s: Runtime / Network

> inputQueueLength metric does not work for LocalInputChannels
> ------------------------------------------------------------
>
>                 Key: FLINK-12576
>                 URL: https://issues.apache.org/jira/browse/FLINK-12576
>             Project: Flink
>          Issue Type: Bug
>          Components: Runtime / Metrics, Runtime / Network
>    Affects Versions: 1.6.4, 1.7.2, 1.8.0
>            Reporter: Piotr Nowojski
>            Assignee: aitozi
>            Priority: Major
>
> Currently {{inputQueueLength}} ignores LocalInputChannels ({{SingleInputGate#getNumberOfQueuedBuffers}}). This can can cause mistakes when looking for causes of back pressure (If task is back pressuring whole Flink job, but there is a data skew and only local input channels are being used).



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