Remarkable
Erlang
Applications
Basho
Klarna
AdRoll
PrivatBank
Crytek Warface
600M monthly users as for 2015
19B messages in & 40B out per day 600M pics, 200M voice, 100M videos
147M concurrent connections
230K peak logins/sec
342K peak msgs in/sec, 712K out
mnesia = disk_log + ets
parallel disk io
custom hashing
512 fragments per table
Basho
Akamai Engineers
Most advanced AP database
CRDT, Multi-PAXOS
Basho
Google LevelDB
Bitcask
Spidermonkey Map/Reduce
Webmachine
Basho
Klarna
Klarna
Klarna
------------------------------------------------------------------------------- kred@kred-psize: 493.4G(530.6G), cpu%: 362(366), procs: 1.6k, runq: 0, 16:17:03 memory: proc 18.4G, atom 5.0M, bin 496.1M, code 57.0M, ets 474.4G
pid name
<0.28894.66> yaws_server:acceptor0/2
<0.25.0> file_server_2
<0.17983.74> yaws_server:acceptor0/2 gen:do_call/4
<0.9604.73> yaws_server:acceptor0/2 prim_inet:recv0/3 0 7.6M 1
<0.23590.74> yaws_server:acceptor0/2 prim_inet:recv0/3 0 1.8M 1
<0.26.0> code_server code_server:loop/ 0 426.0k 1
-------------------------------------------------------------------------------
Technical Debt
------------------------------------------------------------------------------- kred@kred-psize: 493.4G(530.6G), cpu%: 362(366), procs: 1.6k, runq: 0, 16:17:03 memory: proc 18.4G, atom 5.0M, bin 496.1M, code 57.0M, ets 474.4G
pid name
<0.28894.66> yaws_server:acceptor0/2
<0.25.0> file_server_2
<0.17983.74> yaws_server:acceptor0/2 gen:do_call/4
<0.9604.73> yaws_server:acceptor0/2 prim_inet:recv0/3 0 7.6M 1
<0.23590.74> yaws_server:acceptor0/2 prim_inet:recv0/3 0 1.8M 1
<0.26.0> code_server code_server:loop/ 0 426.0k 1
-------------------------------------------------------------------------------
AdRoll
< 100ms Latency
30B transactions per day
mnesia
Crytek Warface
145K TCP connections
Guiness World Record most online FPS players
mnesia/xmpp/.NET
PrivatBank
PrivatBank
PrivatBank
4.3B UAH in a month
100K deposits per month
4M deposits
3K users/day
#process { name = 'Create Deposit Account',
flows = [
#sequenceFlow{source='Start', target='AcquirePhone'},
#sequenceFlow{source='AcquirePhone', target='SendOTP'},
#sequenceFlow{source='SendOTP', target='AcquireOTP'},
#sequenceFlow{source='AcquireOTP', target='CheckOTP'},
#sequenceFlow{source='CheckOTP', target='AcquireApp'},
#sequenceFlow{source='AcquireApp', target='PrepareAccount'},
#sequenceFlow{source='PrepareAccount', target='WaitPayment'},
#sequenceFlow{source='Payment', target='CreateAccount'},
#sequenceFlow{source='CreateAccount', target='Finish'}
],
tasks = [
#beginEvent { name='Start' },
#userTask { name='AcquirePhone', module = deposit },
#serviceTask { name='SendOTP', module = deposit },
#userTask { name='AcquireOTP', module = deposit },
#serviceTask { name='CheckOTP', module = deposit },
#userTask { name='WrongOTP', module = deposit },
#userTask { name='AcquireApp', module = deposit },
#serviceTask { name='PrepareAccount', module = deposit },
#receiveTask { name='WaitPayment', module = deposit },
#serviceTask { name='CreateAccount', module = deposit },
#endEvent { name='Finish' }
],
docs = [],
beginEvent = 'Start',
endEvent = 'Finish',
events = [
#messageEvent { name='Payment' }
]
}.