[jira] [Created] (FLINK-11807) Implement etcd based LeaderElectionService and LeaderRetrievalService

[Shang Yuanchun (Jira)]

MalcolmSanders created FLINK-11807:
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             Summary: Implement etcd based LeaderElectionService and LeaderRetrievalService
                 Key: FLINK-11807
                 URL: https://issues.apache.org/jira/browse/FLINK-11807
             Project: Flink
          Issue Type: Sub-task
          Components: Runtime / Coordination
            Reporter: MalcolmSanders
            Assignee: MalcolmSanders


Implement LeaderElectionService and LeaderRetrievalService using jetcd API.

LeaderLatch API is still in discussion in jetcd community [ jetcd#516|https://github.com/etcd-io/jetcd/issues/516]. I'll continue with this issue.

Detailed design of etcd based LeaderElection has been illustrated in [design doc|https://docs.google.com/document/d/12-gIZDuT4IOWG7gmwSqNFsOHuGlkdRHge0ahJ7M311Y/edit#heading=h.d9ptqjeg282n].



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