Supported MySQL Versions
Data Management for VMware Tanzu supports provisioning database Service Instances running MySQL version 8.0.23.
Configuration
When you create a MySQL database Service Instance with Data Management for VMware Tanzu, you configure certain MySQL properties.
Database Instance Configuration
The Database Instance Configuration properties identify the name of the default database, the database server port number, and the database administrator user credentials.
| Property Name | Description | Default Value |
|---|---|---|
| Database Name | The name of the default database. | MysqlDB |
| Database Port No | The port number on which the database server runs. (Read-only) | 3306 |
| Admin Username | The database administrator user name. | admin |
| Admin Password | The password for the database adminstrator. | Admin!23Admin |
DB Options Configuration
The DB Options Configuration properties control certain runtime characteristics of the MySQL database:
| Property Name | Description | Default Value | Restart Required on Update? |
|---|---|---|---|
| default‑time‑zone | The time zone for the database server. Possible values are SYSTEM or any time in the range ["-13:59","+14:00"]. |
UTC | Yes |
| max_connections | The maximum number of concurrent connections allowed to the server. | 100 | No |
| char‑set‑server | The character set with which to start the MySQL server.1 | utf8mb4 | No |
| collation‑server | The collation with which to start the MySQL server.1 | utf8mb4_0900_ai_ci | No |
| slow‑query‑log | Enable or disable the logging of slow running queries. | OFF | No |
| log‑queries‑not‑using‑indexes | Enable or disable the logging of queries that are expected to retrieve all rows. (Used with slow-query-log.) | OFF | No |
| long‑query‑time | The amount of time after which a query is considered long-running. | Database server default | No |
| max‑allowed‑packet | The upper limit on the size of a message between client and server. A minimum value of 16384 (16MB) is suggested. | Database server default | No |
| innodb‑buffer‑pool‑size | The size (in bytes) of the innodb buffer pool.2 | Database server default | No |
| innodb‑buffer‑pool‑chunk‑size | The chunk size (in bytes) when resizing the innodb buffer pool.2 | Database server default | Yes |
| innodb‑buffer‑pool‑instances | The number of regions in which the innodb buffer pool is divided.2 | Database server default | Yes |
1 Run the following MySQL query to obtain the possible character set values: SHOW CHARACTER SET;
2 During database Service Instance creation, the innodb-buffer-pool-xxx option values are calculated to use 75% of the configured VM memory. These settings will also be adjusted if you scale up the VM memory. While the default values of these options should be sufficient, you may need to change them if 75% is not optimal for your application.
innodb-buffer-pool-xxx options are related, and may requiring tuning together. Consult the
MySQL InnoDB documentation to research and understand the effects before you change these these options.
Connecting to a MySQL Database Service Instance
To access a MySQL database Service Instance, the host on which the client application is running must have connectivity to the Application Network configured for the instance.
You can use any SQL client application to connect to a database in your MySQL Service Instance. To connect, you must be able to identify the FQDN of the MySQL server host, the port on which the server is running, and the database name. You must also have the MySQL admin credentials on hand. You can obtain this information from the Data Management for VMware Tanzu console as described in Locating the Database Service Instance Connection Parameters.
Using TLS with a MySQL Database Service Instance
Refer to Configuring MySQL to Use Encrypted Connections in the MySQL documentation for more information on using TLS with MySQL.
verify-full TLS configuration for client applications connecting to a Service Instance.
Requiring TLS
You can configure a MySQL Service Instance to require SSL/TLS client connections during creation or after provisioning as follows:
- You specify Require Client TLS when you create the Service Instance.
- You require TLS by configuring the instance after it is provisioned as described in Requiring TLS-Secured Client Connections.
