From 6de051b3a0b50c5de09ed08f4779c3c5662236fc Mon Sep 17 00:00:00 2001
From: Michel Vocks <michelvocks@gmail.com>
Date: Thu, 6 Feb 2020 10:24:35 +0100
Subject: [PATCH] Add documentation note

---
 website/pages/docs/configuration/telemetry.mdx | 6 ++++++
 1 file changed, 6 insertions(+)

diff --git a/website/pages/docs/configuration/telemetry.mdx b/website/pages/docs/configuration/telemetry.mdx
index 939bc4845229..0abbaddeab8b 100644
--- a/website/pages/docs/configuration/telemetry.mdx
+++ b/website/pages/docs/configuration/telemetry.mdx
@@ -141,6 +141,10 @@ These `telemetry` parameters apply to
 
 ### `prometheus`
 
+~> **Note:** The `/v1/sys/metrics` endpoint is only accessible on active nodes
+and automatically disabled on standby nodes. You can enable the `/v1/sys/metrics`
+endpoint on standby nodes by [enabling unauthenticated metrics access][telemetry-tcp].
+
 These `telemetry` parameters apply to
 [prometheus](https://prometheus.io).
 
@@ -206,3 +210,5 @@ telemetry {
   enable_hostname_label = true
 }
 ```
+
+[telemetry-tcp]: /docs/configuration/listener/tcp#telemetry