Systems

  • (Almost) No Downtime MariaDB Upgrades

    From time to time, our systems engineers write up a case study detailing a notable moment on the infrastructure front lines. The latest comes from Andrija Vucinic, an Automattician on our Systems Operations team, who is upgrading our fleet of database servers to MariaDB 11.8.
  • Systems Report: Diagnosing a Linux Performance Regression

    From time to time, our systems engineers write up a case study detailing a notable moment on the infrastructure front lines. This month’s comes from Ale Crismani and Joshua Coughlan, systems wranglers who work on WordPress VIP.  At Automattic, we use Kubernetes to orchestrate the infrastructure running WordPress VIP applications. We have firewall rules that ensure…