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Enforce a min_refresh_duration #107

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Enforce a min_refresh_duration #107

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Commits on Aug 21, 2019

  1. Enforce a min_refresh_duration 

    Before this change a refresh of peers is run on a variety of scenarios--
including any time there is a topology change. In a moderately sized
cluster (200+ nodes) there is basically *always* a topology change
(connections closing, opening, etc.). Because of this constant state of
topology change the mesh ends up constantly updating the peer set
effectively in a loop.

This patch simply ensures that the refresh happens no more frequently
than initialInterval (2s) to avoid this CPU spinning.
    @jacksontj
    jacksontj committed Aug 21, 2019
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