Microservices it's deja vu all over again

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Microservices   it’s déjà vu all over again Arnon Rotem-Gal-Oz

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Source : https://www.youtube.com/watch?v=c74tB0nBfh8

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2005

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Two boats are traveling towards each other…

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SOA Service describes End Point Exposes Messages Sends/Receives Contracts Binds to Service Consumer implements Policy governed by Sends/Receives Adheres to Component Relation Key Understands Serves

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Services are autonomous

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Services communicate using messages

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Keep data and   state private

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Two boats are traveling towards each other…

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Physical Protector Protector Commands (navigate to waypoint, Turn on floodlight etc) Status (radar data, subsystem statuses etc.)

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UI Physical Protector Radars & other sensors Protector Common Operating Picture Messagebus Sensors Sensor update Sensor update Updated COP Updated COP

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UI Physical Protector Radars & other sensors Protector Common Operating Picture Messagebus Sensors Image : http://blog.vitria.com/topic/common-operating-picture

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UI Physical Protector Protector Common Operating Picture Messagebus Navigation Alerts

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UI Physical Protector Protector Common Operating Picture Messagebus Navigation Alerts Build Interception Course

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UI Physical Protector Protector Common Operating Picture Messagebus Navigation Alerts Publish Navigation course

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UI Physical Protector Protector Common Operating Picture Messagebus Navigation Alerts Monitor Route

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UI Physical Protector Protector Common Operating Picture Messagebus Navigation Alerts Navigate to Route Navigate to Waypoint1..2..3..

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UI Physical Protector Protector Common Operating Picture Messagebus Navigation Alerts Monitor Route Not the best way

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UI Physical Protector Protector Common Operating Picture Messagebus Navigation Alerts Navigate to Route Navigate to Waypoint1..2..3.. Navigating Monitor Navigating Should have been

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UI Physical Protector Radars & other sensors Protector Common Operating Picture Messagebus Sensors Sensor update Sensor update Updated COP Updated COP Navigation Alerts Updated COP

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UI Physical Protector Protector Common Operating Picture Messagebus Navigation Alerts Interception problem Interception problem Alert Alert

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Benefits & patterns

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Reverse Conway’s Law

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Inversion of Communication

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No content

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Private data Leads to islands of information

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Subscribed/ pulled data Pull data Data backend Endpoint Out Load Report Ingest Clean Join Transform Transpose Produce reports Report Endpoint Request Raw data ODS/DM SQL endpoint SQL endpoint Landing area Service Aggregated Reporting

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2005

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Erlang (1988) https://www.erlang-in-anger.com http://learnyousomeerlang.com

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So …. What did   change in 10+ years?

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The devops culture

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Technology got better

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Containers

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"A first sign of the beginning of understanding is the wish to die.” Franz Kafka

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However   age old risks   are still relevant

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Nanoservices

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A word on   “serverless”

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Micro Iceberg Services

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The   API Gateway   ESB Trap

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,הֶיְהִיֶּשׁ אוּה ,הָיָהֶּשׁ-הַמ״ ;הֶשָׂעֵיֶּשׁ אוּה ,הָשֲׂעַנֶּּשׁ-הַמוּ  ״.שֶׁמָּשַׁה תַחַתּ ,שׁדָָח-לָכּ ןיֵאְו  ט קוספ א קרפ תלהק   "What has been will be again, what has been done will be done again; there is nothing new under the sun." Ecclesiastes 1:9