10 ms·
The ceiling to vertical scaling is pretty damn high. Last I checked, Stack Overflow still ran on a master-slave pair of SQL Server boxes with 64 gigs of RAM ea
by AlisdairO 13y ago
The ceiling to vertical scaling is pretty damn high. Last I checked, Stack Overflow still ran on a master-slave pair of SQL Server boxes with 64 gigs of RAM each. That's not exactly big iron these days.
Locking has a degree of complexity to it, but implementing page locking (for example) is not that hard. The fact that the Mongo guys haven't is probably symptomatic of the fact that they're still relying on the OS to cache data, rather than implementing their own page manager like most other DBMSs. That said, given the short duration of Mongo locks, lock granularity isn't as big a deal with Mongo as some make it out to be.