From 51741861b01454aea9caffaad4fece2b26b8552b Mon Sep 17 00:00:00 2001 From: Jennifer Travinski Date: Mon, 4 Oct 2021 11:41:05 -0400 Subject: [PATCH] Added warning about embedded etcd performance issues --- content/k3s/latest/en/installation/ha-embedded/_index.md | 3 +++ 1 file changed, 3 insertions(+) diff --git a/content/k3s/latest/en/installation/ha-embedded/_index.md b/content/k3s/latest/en/installation/ha-embedded/_index.md index 6b940fc02c9..f8fe7d2ebea 100644 --- a/content/k3s/latest/en/installation/ha-embedded/_index.md +++ b/content/k3s/latest/en/installation/ha-embedded/_index.md @@ -7,6 +7,9 @@ weight: 40 K3s has added full support for embedded etcd as of release v1.19.5+k3s1. Versions v1.19.1 thru v1.19.4 provide only experimental support for embedded etcd. Embedded etcd replaced experimental Dqlite in the K3s v1.19.1 release. This is a breaking change. Please note that upgrades from experimental Dqlite to embedded etcd are not supported. If you attempt an upgrade it will not succeed and data will be lost. +>**Warning:** +Embedded etcd (HA) may have performance issues on slower disks such as Raspberry Pis running with SD cards. + To run K3s in this mode, you must have an odd number of server nodes. We recommend starting with three nodes. To get started, first launch a server node with the `cluster-init` flag to enable clustering and a token that will be used as a shared secret to join additional servers to the cluster.