[jira] [Updated] (FLINK-3182) TaskManagersHandler can block web frontend

["Ufuk Celebi (JIRA)" <ji...@apache.org>]

     [ https://issues.apache.org/jira/browse/FLINK-3182?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]

Ufuk Celebi updated FLINK-3182:
-------------------------------
    Priority: Minor  (was: Major)

> TaskManagersHandler can block web frontend
> ------------------------------------------
>
>                 Key: FLINK-3182
>                 URL: https://issues.apache.org/jira/browse/FLINK-3182
>             Project: Flink
>          Issue Type: Bug
>          Components: Webfrontend
>    Affects Versions: 0.10.1
>            Reporter: Ufuk Celebi
>            Priority: Minor
>
> In {{TaskManagersHandler}}:
> {code}
> Future<Object> future = jobManager.ask(
>     new JobManagerMessages.RequestTaskManagerInstance(instanceID),
>     timeout);
> TaskManagerInstance instance = (TaskManagerInstance) Await.result(
>     future,
>     timeout);
> {code}
> The default timeout is 10 seconds. Depending on the number of event loop threads and requests this can block the web server.



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