The INNODB_TABLESPACES_SCRUBBING table contains statistics about background data scrubbing processes for InnoDB tablespaces.
The Information Schema INNODB_TABLESPACES_SCRUBBING table contains data scrubbing information.
The PROCESS privilege is required to view the table.
It has the following columns:
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ON_SSD
The field contains 1 when MariaDB detects that the table space is on a SSD based storage. 0 if not SSD or it could not be determined
SPACE
InnoDB table space id number.
NAME
Path to the table space file, without the extension.
COMPRESSED
The compressed page size, or zero if uncompressed.
LAST_SCRUB_COMPLETED
Date and time when the last scrub was completed, or NULL if never been performed.
CURRENT_SCRUB_STARTED
Date and time when the current scrub started, or NULL if never been performed.
CURRENT_SCRUB_ACTIVE_THREADS
Number of threads currently scrubbing the tablespace.
CURRENT_SCRUB_PAGE_NUMBER
Page that the scrubbing thread is currently scrubbing, or NULL if not enabled.
CURRENT_SCRUB_MAX_PAGE_NUMBER
When a scrubbing starts rotating a table space, the field contains its current size. NULL if not enabled.
SELECT * FROM information_schema.INNODB_TABLESPACES_SCRUBBING LIMIT 1\G
*************************** 1. row ***************************
SPACE: 1
NAME: mysql/innodb_table_stats
COMPRESSED: 0
LAST_SCRUB_COMPLETED: NULL
CURRENT_SCRUB_STARTED: NULL
CURRENT_SCRUB_PAGE_NUMBER: NULL
CURRENT_SCRUB_MAX_PAGE_NUMBER: 0
ROTATING_OR_FLUSHING: 0
1 rows in set (0.00 sec)