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Posted to issues@flink.apache.org by "Piotr Nowojski (JIRA)" <ji...@apache.org> on 2019/06/07 07:38:00 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 ]

Piotr Nowojski updated FLINK-12576:
-----------------------------------
    Fix Version/s: 1.9.0

> 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
>              Labels: pull-request-available
>             Fix For: 1.9.0
>
>          Time Spent: 10m
>  Remaining Estimate: 0h
>
> 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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