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#vyos
2 posts
Systems debugging
9 min
Swapping a live router in 50 milliseconds
Two VyOS VMs with identical MACs, a bridge with no ports, host-side tap moves, a seeded DHCP lease, and a dead-man switch. How a home router gets cut to a new release while the house sleeps.
#vyos#networking#proxmox#blue-green
Systems debugging
4 min
The load average with a seven hour heartbeat
Every seven hours the router's load average hit 1.0 for forty five minutes. CPU was 98% idle. Nothing ran, nothing blocked, nothing was stolen. The culprit was a beat frequency between two five second clocks, and one of them was mine.
#linux#kernel#monitoring#grafana