gareth rushgrove | morethanseven.net

Message QueuesAsynchronous Messaging for Web Apps

Cambridge Geek Night 9th June 2009

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Gareth Rushgrove

gareth rushgrove | morethanseven.net

morethanseven.net

gareth rushgrove | morethanseven.net

How The Web Works

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Make an HTTP Request

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Get an HTTP Response

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Not Just Browsers

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Not Just People

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http://www.flickr.com/photos/12009357@N08/1204911091/

A Common Pattern

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Make an HTTP Request to a Third Party

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Get an HTTP Request to a Third Party

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A Common Problem

Fail Whale

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Now What?

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Spinning Beach Ball of Death

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http://www.flickr.com/photos/fernando/226930122/

Design for Failure

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Message Queue

Introduce A Message Queue

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And Response Quickly to the Browser

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Message Queue

Send An HTTP Request

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Message Queue

Failure Has No Effect On The Browser

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Message Queue

And We Can Try Again Later

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Message Queue

And Post to Multiple Third Parties

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And How

gareth rushgrove | morethanseven.net http://www.flickr.com/photos/kaptainkobold/860885199/

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Message Queue Libraries in...

Ruby and Python and Java and Erlang and Scala and C# and Lua and PHP and...

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Message Queue Protocols

STOMP and AMQP and Memcache

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Message Queue Software

RabbitMQ and Stompserver and ZeroMQ and Morbid and ApacheMQ and Starling and Beanstalk and Kestrel and MemcacheQ

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Simple Starting Point

RabbitMQ and Stompserver and ZeroMQ and Morbid and ApacheMQ and Starling and Beanstalk and Kestrel and MemcacheQ

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Great for Production

RabbitMQ and Stompserver and ZeroMQ and Morbid and ApacheMQ and Starling and Beanstalk and Kestrel and MemcacheQ

gareth rushgrove | morethanseven.net

Questions?

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