From 79929c1f001f3d59477a19625b722fcf39f2ec23 Mon Sep 17 00:00:00 2001
From: Marcus Efraimsson <marcus.efraimsson@gmail.com>
Date: Thu, 4 Oct 2018 17:42:34 +0200
Subject: [PATCH] mysql: note about connection max lifetime and wait_timeout

---
 public/app/plugins/datasource/mysql/partials/config.html | 3 ++-
 1 file changed, 2 insertions(+), 1 deletion(-)

diff --git a/public/app/plugins/datasource/mysql/partials/config.html b/public/app/plugins/datasource/mysql/partials/config.html
index 3d27dd38bf5..a35633c626a 100644
--- a/public/app/plugins/datasource/mysql/partials/config.html
+++ b/public/app/plugins/datasource/mysql/partials/config.html
@@ -50,7 +50,8 @@
 		<span class="gf-form-label width-7">Max lifetime</span>
 		<input type="number" min="0" class="gf-form-input" ng-model="ctrl.current.jsonData.connMaxLifetime" placeholder="14400"></input>
 		<info-popover mode="right-absolute">
-			The maximum amount of time in seconds a connection may be reused. If set to 0, connections are reused forever.
+			The maximum amount of time in seconds a connection may be reused. If set to 0, connections are reused forever.<br/><br/>
+			This should always be lower than configured <a href="https://dev.mysql.com/doc/refman/8.0/en/server-system-variables.html#sysvar_wait_timeout" target="_blank">wait_timeout</a> in MySQL.
 		</info-popover>
 	</div>
 </div>