HELP:data/command flow of a MMO game

[conscience]

how does the datas/commands flows in one player to another the MMO game?

can anybody explain?.. thanks in advance

[sproingie]

They put state in a database.  World of Warcraft uses Oracle.  EVE uses MS SQL Server.  SOE games use Postgres.  Sun had a project called Darkstar (now RedDwarf) that uses Berkeley DB.

Stuff that's happening live like combat is just in-memory and not at all special.

[conscience]

ah. thanks.

but still curious about the fetching and updating of the data/command in the server...

Games published by our own members! Check 'em out!

[sproingie]

Not too many MMO shops are forthcoming with their designs, but the EVE folks share quite a bit.  EVE is pretty atypical (it's mostly written in python!) but there's still interesting design insights in there:

http://highscalability.com/eve-online-architecture

[conscience]

thanks sir.. hope to release my MMO prototype in 4 months...