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From "Burak Yavuz (Jira)" <j...@apache.org>
Subject [jira] [Assigned] (SPARK-30143) StreamingQuery.stop() should not block indefinitely
Date Fri, 13 Dec 2019 23:17:00 GMT

     [ https://issues.apache.org/jira/browse/SPARK-30143?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
]

Burak Yavuz reassigned SPARK-30143:
-----------------------------------

    Assignee: Burak Yavuz

> StreamingQuery.stop() should not block indefinitely
> ---------------------------------------------------
>
>                 Key: SPARK-30143
>                 URL: https://issues.apache.org/jira/browse/SPARK-30143
>             Project: Spark
>          Issue Type: Improvement
>          Components: Structured Streaming
>    Affects Versions: 2.4.4
>            Reporter: Burak Yavuz
>            Assignee: Burak Yavuz
>            Priority: Major
>
> The stop() method on a Streaming Query awaits the termination of the stream execution
thread. However, the stream execution thread may block forever depending on the streaming
source implementation (like in Kafka, which runs UninterruptibleThreads).
> This causes control flow applications to hang indefinitely as well. We'd like to introduce
a timeout to stop the execution thread, so that the control flow thread can decide to do an
action if a timeout is hit. 



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