Architecture

Mostly Memory/Durability

Database documents are stored in memory-mapped files. Per default, thesememory-mapped files are synced regularly but not instantly. This is often a goodtradeoff between storage performance and durability. If this level of durabilityis too low for an application, the server can also sync all modifications todisk instantly. This will give full durability but will come with a performancepenalty as each data modification will trigger a sync I/O operation.