Event store size and throughput

Thanks!
Using caching event sourcing repository improved 10x times appending speed.
Didn’t know axon server have to rebuild aggregate periodically without explicit call - repository.get( aggregateId )
Just curious, how often does it happen ?
And those properties you mentioned, didn’t find them anywhere.
Is there a place where I can find their and probably other useful properties description ? Found only basic properties like event and snapshot store, etc…