tom coupland @tcoupland #0254 · deleting code at nokia tom coupland @tcoupland #0254 . what...
TRANSCRIPT
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Deleting Code at Nokia
Tom Coupland @tcoupland
#0254
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What happened when we set out for simplicity
Tom Coupland @tcoupland
#0254
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Nokia Entertainment Bristol
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The Journey
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Why did we set off?
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Why did we set off?
5751 40
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Why did we set off?
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Why did we set off?
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Why did we set off?
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The Journey
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Increased transparency Easier to reason about Can dive into the code
Less magic
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The Journey
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Simple configuration Faster boot time
Does less
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The Journey
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Reduction in verbosity Scriptable
Easier to reason
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The Journey
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Reduction in verbosity Valid Java is valid Groovy
Functional concepts
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Immature at the time Lack of adoption drive
Cost/Benefit didn't add up
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The Journey
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Reduction in mapping code
Schema duplication Familiar query structure
Built in sharding support Similar write semantics
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Stalked project Engaged large group
Presented to department Devops style deployment
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The Journey
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Both OO and FP paradigms Developer satisfaction
Retains static types Information Density
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Both OO and FP paradigms Complexity
Covert adoption
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The Journey
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Functional
Immutable Dynamic
Declarative
Simple
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Sense of fun The Joy of Clojure
Embodied in Land of Lisp
Concise
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Local user-group Greenfield service
Early knowledge sharing Brown bag meetings
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The Journey
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71% ~100ms ~10ms 40 12 1674 5751
What about Deleting Code?
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How to escape
Think about what you want Educate yourself
& those around you Local user groups
Patience
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How to move on
Perform experiments Break down your system
Patience Be inclusive
Be brave
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Never make this mistake again?
You're going to Prepare for it instead
Relax
Break down your system Keep learning
Have fun
Time of 'The Stack' is over
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Thank You
Refs: "Simple Made Easy"
RHickey @ QCon 2012 (and others)
"Six Months of MongoDB" TCoupland @ MongoUK 2012
"Clojure at Nokia Entertainment"
AJones & BGriffiths @ Skillsmatter 22/01/13
#0254