Using AWS

to make parents happy

I’m Leonard Gram

developer at

MOJANG

kids play Minecraft

together

public serverslan

self hosted

game host

public serverslan

self hosted

game host

Minecraft Realms

simple to use

like playing the

game normally

all in the client

small team

focus

on the right

problems

started with an

external partner

AWS• EC2

• S3

• RDS

Architecture

Frontend• Client endpoint

• Launches game servers

• Manages realms

Controller• Runs several game servers

• Loads world data from S3

Manager• Stops unused game servers

• Scales Controllers

• Synchronises state with DB

multi-region

The Client

The Client

challenges and

hurdles

going into alpha

big user base

under the radar

api launch

we invited active

players

6+ months

test run

graphsmonitoring

crash logs

feedback from players

perceived

performance

sped up S3 load

times

fast and efficient

compression

game server tuning

world data

in memory

free trials

huge player

increase

scaling

was too slow

fallback

instance types

nuts to crack

running mods

live migrations

Thanks for listening!

I’m @xlson on twitter