Project analysis
A migration needs a way back at every stage
GitHub’s MySQL upgrade is a useful starting point for examining recovery, intermediate states, and the work a migration leaves behind.
3 min read
Travel Lessons .
Project decisions, their consequences, and what another team can learn from them.
4 articles
Project analysis
A small configuration change can have a large reach
Cloudflare’s July 2019 incident raises a practical question for release reviews: how much of the service can this change affect at once?
3 min read
Project analysis
Restoring service includes the work that accumulated
GitHub’s October 2018 incident provides a starting point for thinking about data integrity, queued work, and credible recovery criteria.
3 min read
Project analysis
Test the whole workflow before adding capacity
GOV.UK’s email migration shows why a dependency’s capacity and a service’s end-to-end behaviour need separate investigation.
3 min read