Merge pull request #113840 from ajlam/replicaparameters

Update params on master server

Author: PRMerger6

articles/mariadb/concepts-read-replicas.md

@@ -5,7 +5,7 @@ author: ajlam
 ms.author: andrela
 ms.service: mariadb
 ms.topic: conceptual
-ms.date: 04/21/2020
+ms.date: 5/4/2020
 ---
 
 # Read replicas in Azure Database for MariaDB
@@ -142,6 +142,8 @@ The following server parameters are locked on both the master and replica server
 
 The [`event_scheduler`](https://mariadb.com/kb/en/library/server-system-variables/#event_scheduler) parameter is locked on the replica servers.
 
+To update one of the above parameters on the master server, please delete replica servers, update the parameter value on the master, and recreate replicas.
+
 ### Other
 
 - Creating a replica of a replica is not supported.

articles/mysql/concepts-read-replicas.md

@@ -5,7 +5,7 @@ author: ajlam
 ms.author: andrela
 ms.service: mysql
 ms.topic: conceptual
-ms.date: 04/21/2020
+ms.date: 5/4/2020
 ---
 
 # Read replicas in Azure Database for MySQL
@@ -52,7 +52,6 @@ However, there are limitations to consider:
 * Uni-directional pairs: Some Azure regions are paired in one direction only. These regions include West India, Brazil South, and US Gov Virginia. 
    This means that a master server in West India can create a replica in South India. However, a master server in South India cannot create a replica in West India. This is because West India's secondary region is South India, but South India's secondary region is not West India.
 
-
 ## Create a replica
 
 If a master server has no existing replica servers, the master will first restart to prepare itself for replication.
@@ -142,6 +141,8 @@ The following server parameters are locked on both the master and replica server
 
 The [`event_scheduler`](https://dev.mysql.com/doc/refman/5.7/en/server-system-variables.html#sysvar_event_scheduler) parameter is locked on the replica servers. 
 
+To update one of the above parameters on the master server, please delete replica servers, update the parameter value on the master, and recreate replicas.
+
 ### Other
 
 - Global transaction identifiers (GTID) are not supported.