DB-4
		MariaDB [operations]> select * from mysql.innodb_table_stats where table_name in ('projecttasks','users','plugins','noperation' );
		+---------------+--------------+---------------------+--------+----------------------+--------------------------+
		| database_name | table_name   | last_update         | n_rows | clustered_index_size | sum_of_other_index_sizes |
		+---------------+--------------+---------------------+--------+----------------------+--------------------------+
		| maths         | noperation   | 2018-09-14 15:00:56 |     63 |                    1 |                        1 |
		| databasename  | plugins      | 2018-10-24 01:07:56 |     64 |                    1 |                        2 |
		| databasename  | projecttasks | 2018-10-24 01:07:58 | 528876 |                 1121 |                     1666 |
		| databasename  | users        | 2018-10-24 01:09:16 |    431 |                    6 |                        1 |
		+---------------+--------------+---------------------+--------+----------------------+--------------------------+

	DB-5
		+---------------+--------------+---------------------+--------+----------------------+--------------------------+
		| database_name | table_name   | last_update         | n_rows | clustered_index_size | sum_of_other_index_sizes |
		+---------------+--------------+---------------------+--------+----------------------+--------------------------+
		| maths         | noperation   | 2018-09-14 15:00:56 |     63 |                    1 |                        1 |
		| databasename  | plugins      | 2018-10-24 01:07:46 |      0 |                    1 |                        2 |
		| databasename  | projecttasks | 2018-10-24 01:07:46 |      0 |                    1 |                        2 |
		| databasename  | users        | 2018-10-24 01:08:59 |      0 |                    1 |                        1 |
		+---------------+--------------+---------------------+--------+----------------------+--------------------------+
	
	DB-6
		+---------------+--------------+---------------------+--------+----------------------+--------------------------+
		| database_name | table_name   | last_update         | n_rows | clustered_index_size | sum_of_other_index_sizes |
		+---------------+--------------+---------------------+--------+----------------------+--------------------------+
		| maths         | noperation   | 2018-09-14 15:00:56 |     63 |                    1 |                        1 |
		| databasename  | plugins      | 2018-10-24 01:07:46 |      0 |                    1 |                        2 |
		| databasename  | projecttasks | 2018-10-24 01:07:46 |      0 |                    1 |                        2 |
		| databasename  | users        | 2018-10-24 01:08:59 |      0 |                    1 |                        1 |
		+---------------+--------------+---------------------+--------+----------------------+--------------------------+
		
	All three nodes identical on these:
		MariaDB [operations]> show variables like 'innodb_sta%';
		+--------------------------------------+-------------+
		| Variable_name                        | Value       |
		+--------------------------------------+-------------+
		| innodb_stats_auto_recalc             | ON          |
		| innodb_stats_include_delete_marked   | OFF         |
		| innodb_stats_method                  | nulls_equal |
		| innodb_stats_modified_counter        | 0           |
		| innodb_stats_on_metadata             | OFF         |
		| innodb_stats_persistent              | ON          |
		| innodb_stats_persistent_sample_pages | 20          |
		| innodb_stats_sample_pages            | 8           |
		| innodb_stats_traditional             | ON          |
		| innodb_stats_transient_sample_pages  | 8           |
		| innodb_status_output                 | OFF         |
		| innodb_status_output_locks           | OFF         |
		+--------------------------------------+-------------+