Alexey Serbin created KUDU-3115:
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             Summary: Improve scalability of Kudu masters
                 Key: KUDU-3115
                 URL: https://issues.apache.org/jira/browse/KUDU-3115
             Project: Kudu
          Issue Type: Improvement
            Reporter: Alexey Serbin


Currently, multiple masters in a multi-master Kudu cluster are used only for 
high availability & fault tolerance use cases, but not for sharing the load 
among the available master nodes.  For example, Kudu clients detect current 
leader master upon connecting to the cluster and send all their subsequent 
requests to the leader master, so serving many more clients require running 
masters on more powerful nodes.  Current design assumes that masters store and 
process the requests for metadata only, but that makes sense only up to some 
limit on the rate of incoming client requests.

It would be great to achieve better 'horizontal' scalability for Kudu masters.



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