Till Rohrmann created FLINK-4456:
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Summary: Replace ActorGateway in RuntimeEnvironment by interface
Key: FLINK-4456
URL: https://issues.apache.org/jira/browse/FLINK-4456
Project: Flink
Issue Type: Improvement
Components: TaskManager
Reporter: Till Rohrmann
The {{RuntimeEnvironment}} communicates with the outside world ({{JobManager}})
via {{ActorGateways}}. This bakes in the dependency on actors.
In terms of modularization and an improved abstraction (especially wrt Flip-6)
I propose to replace the {{ActorGateways}} by interfaces which exposes the
required methods. The current implementation would then simply wrap the method
calls in messages and send them via the {{ActorGateway}} to the recipient.
In Flip-6 the {{JobMaster}} could simply implement these interfaces as part of
their RPC contract.
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