"IMHO multiples most things just complicates matters creating a lot more bugs fine if your dealing with mature code (eg sharding/ Service Fabric) not so fine if you have to write it.. I have worked a lot over the years with multiple points of failure and in most cases prefer a simple single point to a complex system with multiple points.  I saw a good bench mark 10-15 years ago that any distributed systems requires 3 * the effort  , i still use this today ( and build a lot of distributed systems) .."

[sic]