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Description

This error occurs when attempting to create or alter a table with an encryption setting that conflicts with the MySQL server's `default_table_encryption` variable. It specifically indicates that the user performing the operation lacks the necessary privileges to override or manage tablespace encryption settings.

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Error Message

Tablespace encryption differ from 'default_table_encryption' setting, and user doesn't have enough privilege.

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Known Causes

3 known causes

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Insufficient User Privileges

The MySQL user account attempting the operation does not possess the `ENCRYPTION_KEY_ADMIN` privilege or other required permissions to manage or override tablespace encryption settings.

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Conflicting Encryption Settings

The `ENCRYPTION` clause specified for the table, or the implicit encryption setting, does not align with the value of the `default_table_encryption` server variable.

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Server's Default Encryption Policy

The MySQL server has a strict `default_table_encryption` policy in place that prevents the requested table operation without explicit authorization or matching settings.

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Solutions

3 solutions available

1. Align Tablespace Encryption with Default Setting medium

Ensure all tablespaces are encrypted according to the server's 'default_table_encryption' setting or remove encryption if it's not intended.

1

Identify the current `default_table_encryption` setting on your MySQL server. This can be found by querying the `performance_schema.global_variables` table.

SELECT VARIABLE_VALUE FROM performance_schema.global_variables WHERE VARIABLE_NAME = 'default_table_encryption';

2

Determine which tablespaces have encryption settings that differ from the `default_table_encryption` value. You can inspect tablespace encryption status by querying `information_schema.tables` or `information_schema.innodb_tables` (depending on MySQL version). For more granular control, you might need to examine individual tables.

SELECT T.TABLE_SCHEMA, T.TABLE_NAME, T.ROW_FORMAT, T.FILE_FORMAT, T.ENCRYPTION_TYPE FROM information_schema.tables T WHERE T.TABLE_SCHEMA NOT IN ('mysql', 'information_schema', 'performance_schema', 'sys') AND T.ENCRYPTION_TYPE <> (SELECT VARIABLE_VALUE FROM performance_schema.global_variables WHERE VARIABLE_NAME = 'default_table_encryption');

3

For tables that have encryption differing from the `default_table_encryption`, you have two primary options:

**Option A: Re-encrypt the table to match the default.** This is done by using `ALTER TABLE ... ENCRYPTION` or `ALTER TABLE ... ENCRYPTION_KEY` to set the desired encryption. If `default_table_encryption` is `ENCRYPTED`, you'll need to specify an encryption key.

**Option B: Remove encryption from the table if it's not intended.** This is achieved by using `ALTER TABLE ... ENCRYPTION=''`. This might be necessary if `default_table_encryption` is `UNENCRYPTED` and you want to make existing tables consistent.

/* Example for Option A: Encrypting a table to match default (assuming default is ENCRYPTED and a key 'my_key_id' exists) */
ALTER TABLE your_database.your_table ENCRYPTION_KEY 'my_key_id';

/* Example for Option B: Removing encryption from a table */
ALTER TABLE your_database.your_table ENCRYPTION '';

4

After modifying the tables, re-verify their encryption status to ensure consistency with `default_table_encryption`.

SELECT T.TABLE_SCHEMA, T.TABLE_NAME, T.ENCRYPTION_TYPE FROM information_schema.tables T WHERE T.TABLE_SCHEMA = 'your_database' AND T.TABLE_NAME = 'your_table';

2. Grant Necessary Privileges for Encryption Operations easy

Provide the user experiencing the error with the required privileges to manage tablespace encryption.

1

Identify the user account that is encountering the error. This is typically displayed in the error message or can be inferred from the context of the operation.

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2

Grant the user the necessary privileges to manage tablespace encryption. The `ALTER` privilege on the affected tables or databases is usually sufficient. If managing encryption keys is involved, `CREATE TABLESPACE` or other specific `INNODB` privileges might be needed, but `ALTER` is the most common requirement for this error.

GRANT ALTER ON your_database.your_table TO 'your_user'@'your_host';
-- Or grant on all tables in a database:
GRANT ALTER ON your_database.* TO 'your_user'@'your_host';
-- Or for global tablespace management (use with caution):
GRANT ALTER, CREATE TABLESPACE, DROP TABLESPACE ON *.* TO 'your_user'@'your_host';

-- After granting, reload privileges.
FLUSH PRIVILEGES;

3

Have the user re-attempt the operation that was previously failing.

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3. Temporarily Disable Tablespace Encryption (If Applicable) medium

If encryption is not strictly required, temporarily disable it to resolve the immediate error, then re-evaluate the encryption strategy.

1

Set the `default_table_encryption` server variable to `UNENCRYPTED`. This is a dynamic variable, so it can be changed without a server restart. However, this change only affects newly created tables.

SET GLOBAL default_table_encryption = 'UNENCRYPTED';

2

For existing tables that have encryption, you will need to explicitly remove it. Iterate through your tables and run the `ALTER TABLE ... ENCRYPTION ''` command for each.

SELECT CONCAT('ALTER TABLE ', table_schema, '.', table_name, ' ENCRYPTION "";') FROM information_schema.tables WHERE encryption_type <> 'UNENCRYPTED' AND table_schema NOT IN ('mysql', 'information_schema', 'performance_schema', 'sys');

3

Execute the generated `ALTER TABLE` statements to remove encryption from existing tables.

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4

Once all tables are unencrypted and consistent, the error should be resolved. You can then decide if you want to re-enable encryption with a proper strategy.

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Related Errors

5 related errors

MySQL Error 3828: Tablespace Encryption Mismatch