k.rennerandClaude Opus 4.7
fd2aa01f02
`local` (dir storage on rpool's filesystem) put VM disks as files behind ZFS's variable recordsize/snapshot/CoW path. Etcd's small fsync-heavy WAL writes saw enough added latency that during the bootstrap I/O storm (Cilium + Flux + many lease grabbers) the etcd leader couldn't service raft heartbeats inside its election window, triggering "leader changed" / "request timed out" cascades. Rook's mon-a Deployment create landed in that window, ate an etcd timeout, and the operator never retries the create. local-zfs (ZFS-pool storage = ZVOLs) bypasses the dir/file path — fewer layers, lower fsync latency. Etcd was stable here pre-#699. Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>