[jira] [Created] (FLINK-6078) ZooKeeper based high availability services should not close the underlying CuratorFramework

[Shang Yuanchun (Jira)]

Till Rohrmann created FLINK-6078:
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             Summary: ZooKeeper based high availability services should not close the underlying CuratorFramework
                 Key: FLINK-6078
                 URL: https://issues.apache.org/jira/browse/FLINK-6078
             Project: Flink
          Issue Type: Bug
          Components: Distributed Coordination
    Affects Versions: 1.3.0
            Reporter: Till Rohrmann
            Assignee: Till Rohrmann
             Fix For: 1.3.0


ZooKeeper based high availability tools like {{ZooKeeperLeaderRetrievalService}} and {{ZooKeeperLeaderElectionService}} expect that every instance of the services have a dedicated {{CuratorFramework}} instance assigned. Thus, they also close this {{CuratorFramework}} when the service is closed. This does not play well along with the newly introduced {{HighAvailabilityServices}} which caches a single {{CuratorFramework}} and shares it among all created services. In order to make it work properly together I propose to change the behaviour such that we no longer close the {{CuratorFramework}} clients in the ZooKeeper based services.



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