Stefan Richter created FLINK-11417:
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Summary: Make access to ExecutionGraph single threaded from
JobMaster main thread
Key: FLINK-11417
URL: https://issues.apache.org/jira/browse/FLINK-11417
Project: Flink
Issue Type: Sub-task
Components: Distributed Coordination
Reporter: Stefan Richter
Assignee: Stefan Richter
To simplify future developments in scheduling, we should re-design the
threading model for interaction with the {{ExecutionGraph}} and its
sub-components to a single threaded approach. In this model, expensive tasks
will still be performed by background threads so that the JM main thread will
never block. However, all resulting modifications and interaction with the EG
itself should only go through the JM main thread.
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