It will load keyring plugin before innodb is loaded. To use the keyring_file plugin, add early-plugin-load in my.cnf. The buffer pool remain decrypted as there is no overhead of pages accessed. The encryption is done by background page cleaner threads, which states the query threads don’t spend more CPU. So, we avoid encrypting data the page whenever it is modified, instead we used to encrypt just before writing to disk. A page could be modified may times in the buffer and then gets flushed. In innodb, pages are encrypted using the tablespace key and it is done at the IO layer. Here, the encryption algorithm used is AES and encryption mode is block encryption mode(CBC). For encrypted tables, tablespace key is encrypted by master key and stored in tablespace header. Tablespace keys are stored in tablespace header which is protected by the Master key. Master key is stored outside the database as it can see by the users. Here the tablespace is very safe, as it is not viewable by any users. The master key is used to encrypt and decrypt the tablespace keys whereas tablespace key is used to encrypt and decrypt tablespace data. Innodb tablespace encryption uses two tier encryption architecture, in which it has master encryption key and Tablespace keys. keyring_okv plugin – Available in MySQL Enterprise Edition.keyring_file plugin – Available in all MySQL versions.This encryption technique works on the basis of rotating key files. There are two types of keyring plugins available for the key management and they are given below This encryption supports all file per table tablespaces and it will not support shared tablespace.
This is a most awaited feature in security. In MySQL 5.7, a new feature “ Innodb Tablespace Encryption“has been added to protect the data at rest.
If you'd like to upgrade from 5.7 to 8.0, we recommend you perform dump and restore to a server that was created with the new engine version.
For more details, refer how to perform major version upgrades. Major version upgrade is currently supported by service for upgrades from MySQL v5.6 to v5.7. The service automatically manages patching for bug fix version updates. Read the version support policy for retired versions in version support policy documentation. Azure Database for MySQL currently supports the following major and minor versions of MySQL: Version Check the following example for further clarity.Ĭonnecting to Azure Database for MySQL via ports 33 are only supported for public connectivity, Private Link and VNet service endpoints can only be used with port 3306. Similarly, if you would like to connect to v8.0 gateway client, you can use your fully qualified server name and port 3309 to connect to your server. In other words, if you would like to connect to v5.7 gateway client, you should use your fully qualified server name and port 3308 to connect to your server from client application. In Azure Database for MySQL service, gateway nodes listens on port 3308 for v5.7 clients and port 3309 for v8.0 clients. However, if your application has a requirement to connect to specific major version say v5.7 or v8.0, you can do so by changing the port in your server connection string.
Review Connectivity architecture to learn more about gateways in Azure Database for MySQL service architecture.Īs Azure Database for MySQL supports major version v5.7 and v8.0, the default port 3306 to connect to Azure Database for MySQL runs MySQL client version 5.6 (least common denominator) to support connections to servers of all 2 supported major versions. To determine the version of your MySQL server instance, use the SELECT VERSION() command at the MySQL prompt. After the connection is established, the MySQL client displays the version of MySQL set in the gateway, not the actual version running on your MySQL server instance.
In the Single Server deployment option, a gateway is used to redirect the connections to server instances. Connect to a gateway node that is running a specific MySQL version For more information about the scheme, see the MySQL documentation. MySQL uses the X.Y.Z naming scheme where X is the major version, Y is the minor version, and Z is the bug fix release. The service supports all the current major version supported by the community namely MySQL 5.7 and 8.0. Azure Database for MySQL has been developed from MySQL Community Edition, using the InnoDB storage engine.