Event topic dimensioning and sizing

[dehora]

There should be description of load related event definition params, calculation of partitions and hints how that load params should be dimensioned to avoid unnecessary partitioning but be ready for mid-term expected peak loads.

Probably best added to the operations section once that gets filled out.

[lasomethingsomething]

@dehora: Hi, is this still necessary, and/or do you need help? If not, let's close.