JJJozzieTechinjjozzietech.hashnode.dev·19h ago · 13 min readFour lines of patched JavaScript, and the router VM that deleted themTwo small patches to a dependency file called ssdp.js. Four lines of changed JavaScript, total. They kept the fleet's nodes reachable from the internet, and they were the reason every incident on the 00
JJJozzieTechinjjozzietech.hashnode.dev·Sep 24 · 16 min readFive layers, one migration — what a fabric cutover exposed about storageThe plan was a network change with a storage flavour. Move a Windows workload and two TrueNAS servers off the legacy flat network and onto the new dual-TOR fabric on the workload VLAN. Three cutovers.00
JJJozzieTechinjjozzietech.hashnode.dev·Sep 17 · 7 min read/etc/environment is not read by systemd, and I believed it was for a monthUV_USE_IO_URING=0 was supposed to be the fix. In late August the Flux Cumulus fleet running on Ubuntu 22.04 picked up a nasty failure mode on Node 1: npm install entering uninterruptible sleep, refusi00
JJJozzieTechinjjozzietech.hashnode.dev·Aug 27 · 21 min readThe wildcard cert saga — eight days from expiry, three failed attempts, one flagCert-expiry monitoring is one of those systems that runs quietly for months and then, suddenly, starts asking for your attention with growing volume. On the Akash provider running out of the Sydney ra10
JJJozzieTechinjjozzietech.hashnode.dev·Aug 20 · 14 min readThe error pointed at the GPU. The culprit was the HBA. — a Proxmox passthrough recoveryThe plan looked textbook. PCIe passthrough an NVIDIA RTX A4000 from a Proxmox 8 host into an Ubuntu 24.04 VM, giving a Filecoin sealing worker direct GPU access for the compute phases that need it. VT00
