KPI High Availability of Services POC

POC for KPI - Service Availability


Setup multi node Swift environment
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Architectural layout:
  a. one load balancer
  b. two proxy servers
  c. four storage nodes
  d. mount loopback devices if working on VMs
Auth System:
  a. Keystone
Load:
  a. cosbench scripts? Borrowed from CAS?



Scenraios
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a. Identify an object's hash, get the 3 primaries from ring, bring down the primary devices corresponding to the object, 
   try to PUT the object and ensure it is getting PUT on a hand off w/o complaining, now bring back the primaries, check
   object is being replicated correctly. 
   
b. unmount couple of devices unde load