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https://issues.apache.org/jira/browse/SPARK-18811?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Apache Spark reassigned SPARK-18811:
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Assignee: Apache Spark
> Stream Source resolution should happen in StreamExecution thread, not main
> thread
> ---------------------------------------------------------------------------------
>
> Key: SPARK-18811
> URL: https://issues.apache.org/jira/browse/SPARK-18811
> Project: Spark
> Issue Type: Improvement
> Components: Structured Streaming
> Affects Versions: 2.0.2, 2.1.0
> Reporter: Burak Yavuz
> Assignee: Apache Spark
>
> When you start a stream, if we are trying to resolve the source of the
> stream, for example if we need to resolve partition columns, this could take
> a long time. This long execution time should not block the main thread where
> `query.start()` was called on. It should happen in the stream execution
> thread possibly before starting any triggers.
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