7 Mercari JP Web Re-architecture Project ViewDev (Frontend) + Backend + DevOps SSR Frontend GraphQL Server SSR Backend Server Session Server microservices Web Gateway New web team
12 Developers working on... - Develop features - Make local development environments - Configure error tracking - Configure logging system - Configure performance monitoring - Maintenance CircleCI jobs - Make deploy pipeline - …and so on
25 Calibreapp - First Meaningful Paint - Speed Index Alert threshold: 20% slower than recent Mercari JP Web (measured at 2019-02-18) https://timkadlec.com/2014/01/fast-enough/ SLI/SLO
28 Calibreapp - Snapshot per hour - Extract median of recent 14 snapshots - Alert if the median exceeds the threshold Extract median of recent 14 snapshots