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Hi

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@ammeep

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10 E Traumas in 10 minutes

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1 E Deployments are painful

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automated deployments are hard in the cloud

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automated deployments are hard in the cloud dirty lies

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automated build automated test automated deploy

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automate provisioning API

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automate network setup API

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automate deployment API

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automate a the thing

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2 E i’m married to my cloud

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AbstractProxyBooleanProvider avoid a ma iage of inconvenience just don’t commit be abstract

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abstract message queues abstract storage providers abstract auto scaling

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abstract away the gory details if you don’t own it

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3 E insanity the definition of

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Oh HAI please may i retrieve my data? sure ... i’ll hold...

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hello? ... ok holding ... may i have my data?

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data? what? ........

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Are we there yet? Are we there yet? Are we there yet? Are we there yet? Are we there yet? Are we there yet? Are we there yet? Are we there yet? not a are born equal transient faults

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exponential the nature of the transient fault Unde tand perhaps try back off

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4 E storage the limitations of

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Transactions can be capped but can we still have infinite storage capacity infinite throughput and

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many ways to skin a cat When is it accessed Wh is accessing it What is accessed

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5 E web scale we’ve got to be

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web scale cloud scale what does that even mean?

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twitter uses it but... it must be g d

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choice of technology is not a function of fashion

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it ok t be relational if it works for you & your data

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6 E go daddy goes down

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DNS is a single point of failure avoiding this is a tricky problem

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have a simple back up plan Use more than one domain

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7 E slow our app is

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hogging resources 100% CPU blocking locking opening cursors never closing interrupt obstructing stalling no connection pooling n+1 leaking memory performance ++ deadlocks

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Just scale Up not optimised performance for node

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Just scale out not optimised for cost

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Bo leneck cost performance tuning is important

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8 E chaos monkey

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patche upgrade VM shuffling DNS changes shared hardware slo node Storage Transient failur queue Transient failures physical location time Storage Transient failures patches o upgrade queue Transient failures provisioning failure autoscaling capacity latency

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patche upgrade VM shuffling DNS changes shared hardware Slo node Storage Transient failur queue Transient failures physical location time Storage Transient failures patches o upgrade queue Transient failures provisioning failure autoscaling capacity latency VOLATILE

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a ept that It will fail and plan fo it

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simulate chao get that monkey working for you

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9 E you have lupus

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it’s 2 am the phone rings your app is crashing servers are unresponsive

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and it gets worse YOU CAN’T TELL WHAT IS GOING ON

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centrally store logs

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user activity correlate be able to

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diagnostics n d t be a first class concern

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10 E you are going to fail

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accept it You’re not going to get it right not the first time and maybe not the time after that

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change i coming

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your designs responsibly to adapt be prepared

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10 E phew thats it

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for listening thanks @ammeep