Stephan Ewen created FLINK-6667:
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Summary: Pass a callback type to the RestartStrategy, rather than
the full ExecutionGraph
Key: FLINK-6667
URL: https://issues.apache.org/jira/browse/FLINK-6667
Project: Flink
Issue Type: Sub-task
Components: Distributed Coordination
Affects Versions: 1.3.0
Reporter: Stephan Ewen
To let the {{ResourceStrategy}} work across multiple {{FailoverStrategy}}
implementations, it needs to be passed a "callback" to call to trigger the
restart of tasks/regions/etc.
Such a "callback" would be a nice abstraction to use for global restarts as
well, to not expose the full execution graph.
Ideally, the callback is one-shot, so it cannot accidentally be used to call
restart() multiple times.
This would also make the testing of RestartStrategies much easier.
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