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2021

NodeBalancer networking faults due to memory pressure

At around 14:30 UTC on Saturday 30th January we started experiencing networking issues at the LoadBalancer level between Cloudflare and our Kubernetes cluster. It seems that the misconfiguration was due to memory and CPU pressure.

This post-mortem is preliminary, we are still awaiting word from Linode's SysAdmins on any problems they detected.

Update 2nd February 2021: Linode have migrated our NodeBalancer to a different machine.