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Erlang + EDTK + BDB: Disrupting the Web Margo Seltzer Architect

What kind of talk is this? ,[object Object],[object Object],[object Object]

Erlang + EDTK + BDB: Huh? ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Erlang + EDTK + BDB: Huh? ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Erlang + EDTK + BDB : Huh? ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Disruptive Technology ,[object Object]

Outline ,[object Object],[object Object],[object Object],[object Object],[object Object]

An Internet Service Clients Load Balancer .NET Java The Internet App Servers Database Servers

An Internet Service Clients Load Balancer .NET Java CGI PHP LISP Perl The Internet Database Servers

An Internet Service Clients Load Balancer BDB CGI Perl Application Code The Internet Servers

The Software Architecture ,[object Object],Gazillion Active Ports Fraction of a gazillion threads A relatively small number of disks

The Erlang Approach ,[object Object],[object Object],[object Object]

Don’t Fight the Problem ,[object Object],[object Object],[object Object]

Don’t Fight the the Network ,[object Object],[object Object],[object Object]

Don’t Fight Distributed Software ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Erlang Tricks: Processes ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Erlang Tricks: Links ,[object Object],[object Object],[object Object],[object Object],[object Object]

Erlang Tricks: Concurrency ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Erlang Nuts and Bolts ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Spawning Processes ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Message send and receive ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Send/Receive Example ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

Send/Receive Execution ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

BDB in Erlang ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

EDTK fixes mismatch ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

And the code looks like BDB ,[object Object],[object Object],[object Object],[object Object],[object Object],[object Object]

An Internet Service Clients Load Balancer Servers The Internet

How does it Perform? From: http://www.sics.se/~joe/apachevsyaws.html

Acknowledgements ,[object Object],[object Object],[object Object]

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