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https://issues.apache.org/jira/browse/FLINK-21602?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel
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Till Rohrmann closed FLINK-21602.
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Resolution: Fixed
Fixed via
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> Creation of ExecutionGraph happens in main thread
> -------------------------------------------------
>
> Key: FLINK-21602
> URL: https://issues.apache.org/jira/browse/FLINK-21602
> Project: Flink
> Issue Type: Sub-task
> Components: Runtime / Coordination
> Affects Versions: 1.13.0
> Reporter: Till Rohrmann
> Assignee: Till Rohrmann
> Priority: Critical
> Labels: pull-request-available
> Fix For: 1.13.0
>
>
> Currently, the {{AdaptiveScheduler}} creates the {{ExecutionGraph}} in the
> main thread. This also means that we are recovering state in the
> {{JobMasters's}} main thread. This can lead to instabilities because we are
> blocking the main thread for too long. I think the creation of the
> {{ExecutionGraph}} should happen in an {{ioExecutor}}.
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