Error
Error Code:
3833
MySQL Error 3833: Invalid ENCRYPTION Clause
Description
This error indicates that the `ENCRYPTION` clause was used incorrectly or applied to a tablespace type that does not support encryption in MySQL. It commonly arises when attempting to create or alter a tablespace with encryption settings that are incompatible with the server configuration or the specific tablespace engine.
Error Message
ENCRYPTION clause is not valid for %s tablespace.
Known Causes
4 known causesUnsupported Tablespace Type
The specified tablespace type, such as the `SYSTEM` tablespace or certain `undo` tablespaces, does not support encryption with the `ENCRYPTION` clause.
Missing Keyring Plugin or Configuration
The MySQL server is not configured with a keyring plugin (e.g., `keyring_file`, `keyring_vault`), which is essential for managing encryption keys, or relevant encryption settings are disabled.
MySQL Version Limitations
The MySQL server version in use does not support tablespace encryption for the specific type of tablespace or the `ENCRYPTION` clause syntax used in the statement.
Conflicting Encryption State
The tablespace might already have an encryption status that conflicts with the `ENCRYPTION` clause being applied, or it's not possible to change its encryption state in this manner.
Solutions
3 solutions available1. Remove ENCRYPTION Clause from Table Creation easy
Modify the `CREATE TABLE` statement to exclude the invalid ENCRYPTION clause.
1
Identify the `CREATE TABLE` statement that is failing. This statement likely includes an `ENCRYPTION` clause that is not supported for the specified tablespace type.
Example of a problematic statement:
CREATE TABLE my_table (...) ENCRYPTION = 'AES';2
Remove the `ENCRYPTION` clause from the `CREATE TABLE` statement. The `ENCRYPTION` clause is generally not a valid option for standard InnoDB or MyISAM tablespaces.
Modified statement:
CREATE TABLE my_table (...);3
Re-execute the corrected `CREATE TABLE` statement.
2. Verify Tablespace Type and Encryption Support medium
Ensure the tablespace type you are trying to encrypt is actually supported by MySQL's encryption features.
1
Determine the tablespace type being used. For InnoDB, this is typically managed by `innodb_file_per_table`. For other storage engines, check their respective documentation.
Check InnoDB configuration:
SHOW VARIABLES LIKE 'innodb_file_per_table';2
Consult the MySQL documentation for your specific version to understand which tablespace types support encryption. Native InnoDB tablespace encryption is a feature introduced in later versions of MySQL (e.g., 8.0+). Older versions or certain configurations might not support it directly at the tablespace level.
Refer to official MySQL documentation for 'InnoDB tablespace encryption'.3
If you are using an older MySQL version or a tablespace type that does not natively support encryption, you will need to find alternative methods like application-level encryption or MySQL Enterprise Edition's Transparent Data Encryption (TDE).
3. Enable InnoDB Tablespace Encryption (MySQL 8.0+) medium
If using MySQL 8.0 or later and intending to use native InnoDB tablespace encryption, ensure it's correctly configured.
1
Verify your MySQL version. This solution is applicable for MySQL 8.0 and newer.
SELECT VERSION();2
Ensure that the `innodb_file_per_table` variable is enabled (which is the default in MySQL 8.0+).
SHOW VARIABLES LIKE 'innodb_file_per_table';3
When creating tables, use the correct syntax for tablespace encryption. This typically involves `CREATE TABLE ... ENCRYPTION = 'Y'` or specifying a key ring.
CREATE TABLE my_encrypted_table (...) ENCRYPTION = 'Y';
-- Or with a specific key_ring (if configured):
CREATE TABLE my_encrypted_table (...) ENCRYPTION = 'Y' KEY_RING = 'my_key_ring';4
If you encounter this error with MySQL 8.0+, it might indicate an issue with your key ring configuration or a misunderstanding of how to apply encryption to the specific tablespace type you are trying to use. Review the MySQL documentation on TDE for detailed setup instructions.