Minor Description
ChaosMonkey with one destructive and one volatility (flush-compact-split-etc.) threads steps on its own toes and logs a lot of exceptions.
A simple solution would be to catch most (or all), like NotServingRegionException, and log less (not a full callstack for example, it's not very useful anyway).
A more complicated/complementary one would be to keep track which regions the destructive thread affects and use other regions for volatile one.