Asynchronous data processing (Confoo)

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A S Y N C H R O N O U S D ATA P R O C E S S I N G Andrea Giuliano @bit_shark February 24th, 2016

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Andrea Giuliano @bit_shark $WHOAMI

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COMMUNICATION

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SYNCHRONOUS COMMUNICATION time system A system B Request Response blocked

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Pros Cons • easy to reason about • immediate feedback • client can get stuck • impractical in low latency env SYNCHRONOUS COMMUNICATION

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ASYNCHRONOUS COMMUNICATION time system A system B Request

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• useful for long-running jobs • systems decoupled • scales well (event-based) • additional system requirements ASYNCHRONOUS COMMUNICATION Pros Cons

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INTEROPERABILITY

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ADVANCED MESSAGE QUEUING PROTOCOL • message orientation • queuing • routing • reliability • security

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P R O D U C E R C O N S U M E R Produce Consumes B R O K E R ENTITIES INVOLVED

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P R O D U C E R C O N S U M E R Produce Exchange Consumes B R O K E R THE BROKER

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P R O D U C E R C O N S U M E R Produce Exchange Routes Consumes B R O K E R THE BROKER

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P R O D U C E R C O N S U M E R Produce Exchange Queue Routes Consumes B R O K E R THE BROKER

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MESSAGING PATTERNS

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{ "require": { "php-amqplib/php-amqplib": "@stable", ... } } $ composer.phar install

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PRODUCER/CONSUMER

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P R O D U C E R C O N S U M E R Q U E U E PRODUCER/CONSUMER

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PRODUCING MESSAGES

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PRODUCING MESSAGES

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PRODUCING MESSAGES

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PRODUCING MESSAGES

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CONSUMING MESSAGES

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CONSUMING MESSAGES

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CONSUMING MESSAGES

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SCALING UP P R O D U C E R C O N S U M E R Q U E U E C O N S U M E R …

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CONSUMERS CAN DIE

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MESSAGE ACKNOWLEDGEMENT

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MESSAGE ACKS switch on acks send ack

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QOS POLICY

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C O N S U M E R C O N S U M E R ROUND ROBIN DISPATCHING

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C O N S U M E R C O N S U M E R ROUND ROBIN DISPATCHING

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C O N S U M E R C O N S U M E R ROUND ROBIN DISPATCHING

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C O N S U M E R C O N S U M E R ROUND ROBIN DISPATCHING !

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FAIR DISPATCHING C O N S U M E R C O N S U M E R

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FAIR DISPATCHING C O N S U M E R C O N S U M E R

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FAIR DISPATCHING C O N S U M E R C O N S U M E R

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FAIR DISPATCHING C O N S U M E R C O N S U M E R ack

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FAIR DISPATCHING C O N S U M E R C O N S U M E R

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FAIR DISPATCHING

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BROKER CAN DIE

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DURABILITY

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DURABILITY declare the queue persistent

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PUBLISH/SUBSCRIBE

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PUBLISH/SUBSCRIBE P U B L I S H E R S U B S C R I B E R Q U E U E S U B S C R I B E R S U B S C R I B E R

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PUBLISH/SUBSCRIBE M A I L S E R V I C E A U T H S E R V I C E C O U P O N S E R V I C E B R O K E R tell me when a user is created tell me when a user is created tell me when a user is created

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PUBLISH/SUBSCRIBE M A I L S E R V I C E A U T H S E R V I C E C O U P O N S E R V I C E U S E R S E R V I C E B R O K E R username: agiuliano password: ****** mail: ***@gmail.com UserCreated

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PUBLISH/SUBSCRIBE M A I L S E R V I C E A U T H S E R V I C E C O U P O N S E R V I C E B R O K E R UserCreated UserCreated UserCreated

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PUBLISH/SUBSCRIBE U S E R S E R V I C E B R O K E R UserCreated

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PUBLISH/SUBSCRIBE M A I L S E R V I C E B R O K E R tell me when a user is created

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PUBLISH/SUBSCRIBE UserCreated M A I L S E R V I C E B R O K E R

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ROUTING

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ROUTING M A I L S E R V I C E A U T H S E R V I C E C O U P O N S E R V I C E B R O K E R [UserCreated, UserUpdated] UserCreated UserCreated

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ROUTING U S E R S E R V I C E B R O K E R UserUpdated routing key: updated

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ROUTING M A I L S E R V I C E B R O K E R routing keys: [created, updated]

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ROUTING M A I L S E R V I C E B R O K E R routing keys: [created, updated]

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TOPIC

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TOPIC M A I L S E R V I C E A U T H S E R V I C E C O U P O N S E R V I C E B R O K E R [user. *] [user. created] [user. created, *.purchased]

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TOPIC

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TOPIC M A I L S E R V I C E A U T H S E R V I C E C O U P O N S E R V I C E B R O K E R [user. *] [user. created] [user. created, *.purchased] U S E R S E R V I C E

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TOPIC M A I L S E R V I C E A U T H S E R V I C E C O U P O N S E R V I C E B R O K E R [user. *] [user. created] [user. created, *.purchased] U S E R S E R V I C E

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TOPIC M A I L S E R V I C E A U T H S E R V I C E C O U P O N S E R V I C E B R O K E R [user. *] [user. created] [user. created, *.purchased] U S E R S E R V I C E

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TOPIC M A I L S E R V I C E A U T H S E R V I C E C O U P O N S E R V I C E B R O K E R [user. *] [user. created] [user. created, *.purchased] U S E R S E R V I C E

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TOPIC M A I L S E R V I C E A U T H S E R V I C E C O U P O N S E R V I C E B R O K E R [user. *] [user. created] [user. created, *.purchased] S T O R E S E R V I C E

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TOPIC M A I L S E R V I C E A U T H S E R V I C E C O U P O N S E R V I C E B R O K E R [user. *] [user. created] [user. created, *.purchased] S T O R E S E R V I C E

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TOPIC M A I L S E R V I C E A U T H S E R V I C E C O U P O N S E R V I C E B R O K E R [user. *] [user. created] [user. created, *.purchased] S T O R E S E R V I C E

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TOPIC M A I L S E R V I C E A U T H S E R V I C E C O U P O N S E R V I C E B R O K E R [user. *] [user. created] [user. created, *.purchased] S T O R E S E R V I C E

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SUMMARY

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PERFORMANCE

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DECOUPLED SYSTEM

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INTEROPERABILITY

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SCALABILITY

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CREDITS • www.flickr.com/photos/rayofsun/9401226342 • www.flickr.com/photos/kalexanderson/6231391820 • www.flickr.com/photos/dhammza/2891991931 • www.flickr.com/photos/kevlewis/15372562472 • www.flickr.com/photos/hohumhobo/6349729535 • www.flickr.com/photos/107346206 • www.flickr.com/photos/berlin_steve/8414515260 • www.flickr.com/photos/s3a/4816966416 • www.flickr.com/photos/thatguyfromcchs08/2300190277 • www.flickr.com/photos/toniblay/52445415 • www.flickr.com/photos/bobsfever/8226802321 • www.flickr.com/photos/activars/6590201161 • www.flickr.com/photos/michaeljzealot/6485009571