Till Rohrmann created FLINK-7458:
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Summary: Generalize GatewayRetriever for WebRuntimeMonitor
Key: FLINK-7458
URL: https://issues.apache.org/jira/browse/FLINK-7458
Project: Flink
Issue Type: Improvement
Components: Distributed Coordination, Webfrontend
Affects Versions: 1.4.0
Reporter: Till Rohrmann
Assignee: Till Rohrmann
Currently, all web frontend information can be retrieved from the
{{JobManager}}. For that, we have the {{JobManagerRetriever}} which listens to
leader changes and always connects to the leading {{JobManager}}. This gateway
can then be used by the REST handlers. In the future (with Flip-6) the
information will be distributed across different components and multiple
components will have a REST endpoint. Due to that the REST handlers no longer
can rely on the {{JobManagerGateway}}. Instead they might connect to different
entities which need to be retrieved. In order to solve this problem, I propose
to introduce a generalized gateway retriever which allows to retrieve the
{{RpcGateway}} for different components.
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