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Django & Distributed Systems Hecham Ghazal Jan. 17, 2013 @hechamghazal [email protected] Friday, 18 January, 13

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In the beginning . . . Friday, 18 January, 13

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Friday, 18 January, 13

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start adding “features” Friday, 18 January, 13

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Friday, 18 January, 13

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... Friday, 18 January, 13

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... Friday, 18 January, 13

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launch project ‘economy’ Friday, 18 January, 13

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measure traction Friday, 18 January, 13

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success beyond expectation Friday, 18 January, 13

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executive Friday, 18 January, 13

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Friday, 18 January, 13

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launch “government” and measure again Friday, 18 January, 13

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Success, but . . . Friday, 18 January, 13

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economy government Friday, 18 January, 13

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is not where we want to be Friday, 18 January, 13

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economy government education citizen . . . Friday, 18 January, 13

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GREAT Friday, 18 January, 13

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how do you do inter-project RPC in Django? Friday, 18 January, 13

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REST Thrift Protobuf ZeroRPC Friday, 18 January, 13

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• Widely understood • Easily scalable • Runs over HTTP REST • Take time • Time to build client lib. • Not clean for model methods PROS CONS Friday, 18 January, 13

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• built by Facebook/ Google • Cross-platform Thrift / Protobuf • Need to know and update contract before hand • Not enough docs • Learning curve PROS CONS Friday, 18 January, 13

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• Built on top of ZeroMQ • Cross-platform ZeroRPC • New • Released too late for us PROS CONS Friday, 18 January, 13

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If we can build our own . . . Friday, 18 January, 13

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CHUNNEL Friday, 18 January, 13

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Objectives Friday, 18 January, 13

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Simple Server economy/moeny/rpc.py Friday, 18 January, 13

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Simple Client settings.py Friday, 18 January, 13

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Name spacing Friday, 18 January, 13

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Expose Django Model Server: Client: Friday, 18 January, 13

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Dynamic Friday, 18 January, 13

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Multiple Serialization Backends Multiple Server Backends Friday, 18 January, 13

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Built-in documentation generator Friday, 18 January, 13

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TypeError Friday, 18 January, 13

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Scalability Friday, 18 January, 13

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built-in round-robin support horizontally scalable via HAProxy Friday, 18 January, 13

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Performance Friday, 18 January, 13

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400+ requests/sec on a single 2GB box Friday, 18 January, 13

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Widely adopted at Wave Friday, 18 January, 13

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Open Source SOON Friday, 18 January, 13

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Questions Friday, 18 January, 13