mirror of
https://github.com/MariaDB/server.git
synced 2025-01-17 04:22:27 +01:00
2fb31821de
The following INFORMATION_SCHEMA views were unnecessarily retrieving the data from the SYS_TABLESPACES table instead of directly fetching it from the fil_system cache: information_schema.innodb_tablespaces_encryption information_schema.innodb_tablespaces_scrubbing InnoDB always loads all tablespace metadata into memory at startup and never evicts it while the tablespace exists. With this fix, accessing these views will be much faster and use less memory, and include data about all tablespaces, including undo tablespaces. The view information_schema.innodb_sys_tablespaces will still reflect the contents of the SYS_TABLESPACES table.
69 lines
3 KiB
Text
69 lines
3 KiB
Text
SET @start_global_value = @@global.innodb_encryption_threads;
|
|
SHOW VARIABLES LIKE 'innodb_encrypt%';
|
|
Variable_name Value
|
|
innodb_encrypt_log ON
|
|
innodb_encrypt_tables ON
|
|
innodb_encryption_rotate_key_age 15
|
|
innodb_encryption_rotation_iops 100
|
|
innodb_encryption_threads 4
|
|
SET GLOBAL innodb_encrypt_tables = ON;
|
|
# Wait max 10 min for key encryption threads to encrypt all spaces
|
|
SELECT NAME FROM INFORMATION_SCHEMA.INNODB_TABLESPACES_ENCRYPTION WHERE MIN_KEY_VERSION = 0
|
|
AND NAME NOT LIKE 'innodb_undo%' AND NAME NOT LIKE 'mysql/innodb_%_stats';
|
|
NAME
|
|
SELECT NAME FROM INFORMATION_SCHEMA.INNODB_TABLESPACES_ENCRYPTION WHERE MIN_KEY_VERSION <> 0
|
|
AND NAME NOT LIKE 'innodb_undo%' AND NAME NOT LIKE 'mysql/innodb_%_stats';
|
|
NAME
|
|
innodb_system
|
|
# Success!
|
|
# Now turn off encryption and wait for threads to decrypt everything
|
|
SET GLOBAL innodb_encrypt_tables = off;
|
|
# Wait max 10 min for key encryption threads to encrypt all spaces
|
|
SELECT NAME FROM INFORMATION_SCHEMA.INNODB_TABLESPACES_ENCRYPTION WHERE MIN_KEY_VERSION = 0
|
|
AND NAME NOT LIKE 'innodb_undo%' AND NAME NOT LIKE 'mysql/innodb_%_stats';
|
|
NAME
|
|
innodb_system
|
|
SELECT NAME FROM INFORMATION_SCHEMA.INNODB_TABLESPACES_ENCRYPTION WHERE MIN_KEY_VERSION <> 0
|
|
AND NAME NOT LIKE 'innodb_undo%' AND NAME NOT LIKE 'mysql/innodb_%_stats';
|
|
NAME
|
|
# Success!
|
|
# Shutdown innodb_encryption_threads
|
|
SET GLOBAL innodb_encryption_threads=0;
|
|
# Turn on encryption
|
|
# since threads are off tables should remain unencrypted
|
|
SET GLOBAL innodb_encrypt_tables = on;
|
|
# Wait 15s to check that nothing gets encrypted
|
|
SELECT NAME FROM INFORMATION_SCHEMA.INNODB_TABLESPACES_ENCRYPTION WHERE MIN_KEY_VERSION = 0
|
|
AND NAME NOT LIKE 'innodb_undo%' AND NAME NOT LIKE 'mysql/innodb_%_stats';
|
|
NAME
|
|
innodb_system
|
|
SELECT NAME FROM INFORMATION_SCHEMA.INNODB_TABLESPACES_ENCRYPTION WHERE MIN_KEY_VERSION <> 0
|
|
AND NAME NOT LIKE 'innodb_undo%' AND NAME NOT LIKE 'mysql/innodb_%_stats';
|
|
NAME
|
|
# Success!
|
|
# Startup innodb_encryption_threads
|
|
SET GLOBAL innodb_encryption_threads=@start_global_value;
|
|
# Wait max 10 min for key encryption threads to encrypt all spaces
|
|
SELECT NAME FROM INFORMATION_SCHEMA.INNODB_TABLESPACES_ENCRYPTION WHERE MIN_KEY_VERSION = 0
|
|
AND NAME NOT LIKE 'innodb_undo%' AND NAME NOT LIKE 'mysql/innodb_%_stats';
|
|
NAME
|
|
SELECT NAME FROM INFORMATION_SCHEMA.INNODB_TABLESPACES_ENCRYPTION WHERE MIN_KEY_VERSION <> 0
|
|
AND NAME NOT LIKE 'innodb_undo%' AND NAME NOT LIKE 'mysql/innodb_%_stats';
|
|
NAME
|
|
innodb_system
|
|
# Success!
|
|
# Restart mysqld --innodb_encrypt_tables=0 --innodb_encryption_threads=0
|
|
SHOW VARIABLES LIKE 'innodb_encrypt%';
|
|
Variable_name Value
|
|
innodb_encrypt_log ON
|
|
innodb_encrypt_tables OFF
|
|
innodb_encryption_rotate_key_age 15
|
|
innodb_encryption_rotation_iops 100
|
|
innodb_encryption_threads 0
|
|
SELECT NAME FROM INFORMATION_SCHEMA.INNODB_TABLESPACES_ENCRYPTION WHERE MIN_KEY_VERSION <> 0
|
|
AND NAME NOT LIKE 'innodb_undo%' AND NAME NOT LIKE 'mysql/innodb_%_stats';
|
|
NAME
|
|
innodb_system
|
|
SELECT NAME FROM INFORMATION_SCHEMA.INNODB_TABLESPACES_ENCRYPTION WHERE MIN_KEY_VERSION = 0
|
|
AND NAME NOT LIKE 'innodb_undo%' AND NAME NOT LIKE 'mysql/innodb_%_stats';
|
|
NAME
|