infra/docs/post-mortems
Viktor Barzin 57250cfda2 mysql: bump to 4Gi limit / 3Gi request; grow /srv/nfs LV to 3 TiB
mysql-standalone OOMKilled May 8 18:05 (anon-rss 2 GB at the 2 Gi limit).
innodb_buffer_pool_size=1Gi plus connection buffers and InnoDB internals
don't fit in 2 Gi. Bumping limit to 4 Gi (request 3 Gi) leaves headroom
without changing the buffer pool config.

/srv/nfs was at 90% (1.7T / 2T); grew the underlying pve/nfs-data LV
1 TiB online and ran resize2fs (now 60% used). Triggered by surfacing
during the 2026-05-09 IO-pressure post-mortem; thinpool had ~4.6 TiB
free.

The post-mortem also covers the stale-NFS-client trigger (legacy
/usr/local/bin/weekly-backup pointing at the decommissioned TrueNAS IP)
and the resulting wedged kthread on the PVE host. Script removed and
node_exporter restarted out-of-band; kthread will clear at next PVE
reboot. See docs/post-mortems/2026-05-09-io-pressure-stale-nfs.md.

Co-Authored-By: Claude Opus 4.7 <noreply@anthropic.com>
2026-05-10 11:12:38 +00:00
..
2026-03-16-kured-containerd-cascade-outage.html docs: consolidate all post-mortems under docs/post-mortems/ 2026-04-14 08:24:36 +00:00
2026-03-16-nfs-csi-cascade-failure.md docs: move post-mortems to docs/post-mortems/ 2026-04-14 08:20:09 +00:00
2026-04-14-nfs-fsid0-dns-vault-outage.md docs: update post-mortem follow-up implementation [PM-2026-04-14] [ci skip] 2026-04-14 18:09:11 +00:00
2026-04-14-postmortem-pipeline-test.md fix: use full path to claude CLI for non-interactive SSH 2026-04-14 17:44:50 +00:00
2026-04-18-authentik-outpost-shm-full.md [docs] post-mortem: clarify the sizeLimit vs container memory limit gotcha 2026-04-18 13:23:14 +00:00
2026-04-19-registry-orphan-index.md [registry] bulk-clean 34 orphan manifests + beads-server image bump 2026-04-19 23:16:34 +00:00
2026-04-22-vault-raft-leader-deadlock.md vault: complete Phase 2 NFS-hostile migration; remove nfs-proxmox SC 2026-04-25 17:10:00 +00:00
2026-05-09-io-pressure-stale-nfs.md mysql: bump to 4Gi limit / 3Gi request; grow /srv/nfs LV to 3 TiB 2026-05-10 11:12:38 +00:00
index.html docs: consolidate all post-mortems under docs/post-mortems/ 2026-04-14 08:24:36 +00:00