Till Rohrmann created FLINK-7804:
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Summary: YarnResourceManager does not execute AMRMClientAsync
callbacks in main thread
Key: FLINK-7804
URL: https://issues.apache.org/jira/browse/FLINK-7804
Project: Flink
Issue Type: Bug
Components: Distributed Coordination, YARN
Affects Versions: 1.4.0
Reporter: Till Rohrmann
The {{YarnResourceManager}} registers callbacks at a {{AMRMClientAsync}} which
it uses to react to Yarn container allocations. These callbacks (e.g.
{{onContainersAllocated}} modify the internal state of the
{{YarnResourceManager}}. This can lead to race conditions with the
{{requestYarnContainer}} method.
In order to solve this problem we have to execute the state changing operations
in the main thread of the {{YarnResourceManager}}.
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