Mike Percy created KUDU-1731:
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             Summary: Evict replicas that are alive but lagging
                 Key: KUDU-1731
                 URL: https://issues.apache.org/jira/browse/KUDU-1731
             Project: Kudu
          Issue Type: Bug
          Components: consensus
            Reporter: Mike Percy


In the case that a replica is consistently behind the other replicas, we may be 
able to detect that the node is slow and evict it. (Currently under high write 
load we very often degrade to all tablets having just two live replicas and one 
COPYING)
* In fact, this would also be useful for leaders that are significantly slower 
than their followers.
* We should instead recruit a new replica and only evict the lagging one once 
the new one is online.




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