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From "Till Rohrmann (JIRA)" <j...@apache.org>
Subject [jira] [Commented] (FLINK-7409) WebRuntimeMonitor blocks serving threads
Date Fri, 11 Aug 2017 09:09:00 GMT

    [ https://issues.apache.org/jira/browse/FLINK-7409?page=com.atlassian.jira.plugin.system.issuetabpanels:comment-tabpanel&focusedCommentId=16123061#comment-16123061

Till Rohrmann commented on FLINK-7409:

Thanks for the pointer [~uce]. Will link the issue.

> WebRuntimeMonitor blocks serving threads
> ----------------------------------------
>                 Key: FLINK-7409
>                 URL: https://issues.apache.org/jira/browse/FLINK-7409
>             Project: Flink
>          Issue Type: Improvement
>          Components: Webfrontend
>    Affects Versions: 1.4.0
>            Reporter: Till Rohrmann
>            Assignee: Till Rohrmann
> The {{WebRuntimeMonitor}} contains a lot of blocking operations where it retrieves a
result from the {{JobManager}} and then waits on the future to obtain the result. This is
not a good design since we are blocking server threads with that. Instead I propose to follow
a more reactive approach where the {{RequestHandler}} returns a {{CompletableFuture}} of {{FullHttpResonse}}
which is in the completion handler written out to the channel.

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