EST. 2026 — Notes from real server work SYSADMIN · SECURITY · AI · DIRECTADMIN Issue 01
THE SYSADMIN ALMANAC
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#cgroup

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OS / Distro
Per-user Redis on shared hosting—and the maxmemory bug that hung sites
Linux

Per-user Redis on shared hosting—and the maxmemory bug that hung sites

Designing one Redis instance per user on shared hosting with a systemd template + cgroup — and lessons from a maxmemory bug where setting it above the cgroup limit caused intermittent WooCommerce hangs, plus the 80% rule and a guard script to prevent recurrence

#redis#cache#systemd#cgroup
10 min read·9 Jul