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https://issues.apache.org/jira/browse/FLINK-19160?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=17192726#comment-17192726
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Piotr Nowojski commented on FLINK-19160:
----------------------------------------

The problem is that only one usage of blocking call {{TaskMailbox#take}} out of 
two is marking blocked time as idle. Probably a simple solution is to move 
{{MailboxProcessor#idleTime}} metric accounting to {{TaskMailboxImpl}}.

> When backpressured AsyncWaitOperator/ContinousFileReaderOperator are not idle
> -----------------------------------------------------------------------------
>
>                 Key: FLINK-19160
>                 URL: https://issues.apache.org/jira/browse/FLINK-19160
>             Project: Flink
>          Issue Type: Bug
>          Components: Runtime / Network
>    Affects Versions: 1.11.1
>            Reporter: Konstantin Knauf
>            Priority: Major
>
> When AsyncWaitOperator/ContinousFileReaderOperator are backpressured, this 
> time is not account for as idle by the "idleTime" metric.



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