Percona Live Europe 2016Daniel Black – Overcoming

Upgrade PhobiaAmsterdam, Netherlands | October 3 – 5, 2016

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The story of Overcoming Upgrade Phobia

● About me● The Promise● Validating the Promise● Perf

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About me

● Former DB consultant● Came across regressions / missing features● Started digging into code● Wrote quite a few patches in own time● Needed full time work● Now with IBM – OzLabs – getting - Power Performance

engineering – so MySQL ecosystems working well on Power● Getting paid to code – big improvement●

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The Promise - Release notes

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Validating Promises

● Mirrors of code bases for● all MySQL and variants● ● Includes development● branches●

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Validating Promises

● Against ● different● compilers● ● Debug and Release versions● ● and architectures (x86_86/ppc64le)● ● doesn’t always compile

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Validating the Promise (2)

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The testing

● Compiled code gets● tested

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Perf

● Demo….