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Scaling Hailo in the cloud @ davegardnerisme Cloud Expo Europe January 2013

Scaling Hailo in the cloud @ davegardnerisme Cloud Expo Europe January 2013. Hailo is the taxi app . Use Hailo to get a black cab wherever you are, whenever you want. The world’s highest-rated taxi app - over 7,000 five-star reviews Over 300,000 registered passengers

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Scaling Hailo in the cloud @ davegardnerisme Cloud Expo Europe January 2013

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  1. Scaling Hailo in the cloud @davegardnerisme Cloud Expo Europe January 2013

  2. Hailo is the taxi app. Use Hailo to get a black cab wherever you are, whenever you want.

  3. The world’s highest-rated taxi app - over 7,000 five-star reviews • Over 300,000 registered passengers • A Hailo hail is accepted around the world every 5 seconds

  4. Hailo is growing (30%+) every month • Became the largest taxi network in all of Ireland within two months of launch

  5. “I come to use clouds, not to build them...” Adrian Cockcroft http://bit.ly/WM4g2Z

  6. Hailo runs on AWS. AWS allows us to grow rapidly. • 2 regions • 6 availability zones • We use some AWS services: ELB, Route53 DNS, EBS

  7. DC 1 DC 2 DC 4 DC 3 DC 6 DC 5 Going global…

  8. Route53 latency-based DNS us-east-1 eu-west-1 ELB ELB API layer API layer Web service Web service Web service Web service Web service Web service Web service Web service Services(C*, ZK..) Services(C*, ZK..) Services(C*, ZK..) Services(C*, ZK..) Services(C*, ZK..) Services(C*, ZK..)

  9. We favour technologies that are: • distributed • resilient • operationally simple

  10. Cassandrafor distributed primary storage • Zookeeperfor distributed locking • Acunu Analyticsfor distributed real-time analytics • NSQfor distributed queuing

  11. Our C* usage: • Two global clusters spanning 2 regions and 6 AZs • Use cases include customer records, job history and more

  12. Our AA usage: • Main event stream is location updates from drivers (500/sec) • Can aggregate in real-time to answer questions such as“how many drivers active in last 10 minutes?”

  13. The key point is to keep services stateless and use specific tools for specific jobs: storage, search, analytics, coordination (makes it easier to scale)

  14. Next steps • Expansion, expansion, expansion • NYC, Tokyo up next including third DC in Asia

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