Month: January 2016

Rollbackability in upgrading a MySQL cluster

Here I give a lightning talk on how we mitigated the risk of upgrading the version of MySQL used in one of TIM Group’s most important databases. Our approach to risk mitigation was Rollbackability. Rather than spend all our time ensuring that nothing would go wrong, we decided to plan […]

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Human Error and Just Culture

Sidney Dekker’s Just Culture made me thankful I don’t work in an occupation with a high risk of impacting public safety (those described in the book include aviation, health-care, and policing). In our society we believe that practitioners should be accountable for their actions, that without legal consequences after a […]

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