Define TopologyListener, ServerPingMonitor, and SingleServerPingMonitor classes.

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    • Type: Task
    • Resolution: Fixed
    • Priority: Major - P3
    • 4.3.3
    • Affects Version/s: None
    • Component/s: Sharding
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    • Fully Compatible
    • Service Arch 2020-01-27
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    • 3
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      Goal: Create the bare infrastructure for the classes responsible for monitoring a group of servers Round Trip Times. 

      (1) Define the interface for the TopologyListener, a class that gets notified when a server's new RTT(Round Trip Time) is published.

      (2) Introduce a ServerPingMonitor that manages which servers to monitor. Implement the functionality to remove and add servers to monitor. 

      (3) Define the skeleton of the SingleServerPingMonitor class which is responsible for monitoring a single server and measuring its RTT values at uniform time intervals. 

      The actual functionality for the SingleServerPingMonitor will be implemented and tested in SERVER-45051.

            Assignee:
            Haley Connelly
            Reporter:
            Haley Connelly
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              Created:
              Updated:
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