From: Miod Vallat <miod.vallat@powerdns.com>
Date: Fri, 25 Apr 2025 05:27:30 +0000 (+0200)
Subject: Mention foreign keys constraints are incompatible with group replication.
X-Git-Tag: dnsdist-2.0.0-alpha2~53^2
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=refs%2Fpull%2F15468%2Fhead;p=thirdparty%2Fpdns.git

Mention foreign keys constraints are incompatible with group replication.
---

diff --git a/docs/backends/generic-mysql.rst b/docs/backends/generic-mysql.rst
index 811975dfab..1ced43ef65 100644
--- a/docs/backends/generic-mysql.rst
+++ b/docs/backends/generic-mysql.rst
@@ -48,6 +48,11 @@ domains table. The following SQL does the job:
 .. literalinclude:: ../../modules/gmysqlbackend/enable-foreign-keys.mysql.sql
    :language: SQL
 
+.. warning::
+  Please note, however, that setting up these foreign key constraints prevents
+  the PowerDNS database from being usable with mysql group replication, if you
+  are using multiple servers.
+
 Using MySQL/MariaDB replication
 -------------------------------