# Renaming a DB instance in an active-active cluster
<a name="mysql-active-active-clusters-renaming"></a>

You can change the name of a DB instance in an active-active cluster. To rename more than one DB instance in an active-active cluster, do so one DB instance at a time. So, rename one DB instance and rejoin it to the cluster before you rename the next DB instance.

**To rename a DB instance in an active-active cluster**

1. Connect to the DB instance in a SQL client, and call the [mysql.rds\$1group\$1replication\$1stop](mysql-stored-proc-active-active-clusters.md#mysql_rds_group_replication_stop) stored procedure:

   ```
   call mysql.rds_group_replication_stop();
   ```

1. Rename the DB instance by following the instructions in [Renaming a DB instance](USER_RenameInstance.md).

1. Modify the `group_replication_group_seeds` parameter in each DB parameter group associated with a DB instance in the active-active cluster.

   In the parameter setting, replace the old DB instance endpoint with the new DB instance endpoint. For more information about setting parameters, see [Modifying parameters in a DB parameter group in Amazon RDS](USER_WorkingWithParamGroups.Modifying.md).

1. Connect to the DB instance in a SQL client, and call the [mysql.rds\$1group\$1replication\$1start](mysql-stored-proc-active-active-clusters.md#mysql_rds_group_replication_start) stored procedure:

   ```
   call mysql.rds_group_replication_start(0);
   ```