Running WordPress in production at high scale usually hits a wall at the storage layer. Standard stateful setups rely on local disks or shared network file systems, both of which collapse when traffic spikes force rapid horizontal auto-scaling. A true...
During our last production audit of an enterprise cluster, we caught three application nodes choking on disk I/O during a traffic spike. The nodes were pinned waiting for filesystem sync across a shared NFS mount. It failed instantly. That legacy...