[jira] [Created] (FLINK-7458) Generalize GatewayRetriever for WebRuntimeMonitor

[Shang Yuanchun (Jira)]

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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