PHSQL. Autovacuum.

https://www.oslogic.ru/knowledge/638/optimizatsiya-postgresql-autovacuum-sborka-musora/

https://www.datadoghq.com/blog/postgresql-vacuum-monitoring/

Перечитать конфиг

/etc/init.d/postgresql reload

Текущие настройки сервера относящиеся к автовакууму:

SELECT * from pg_settings where category like 'Autovacuum';

SELECT * from pg_settings where name like '%vacuum%';

autovacuuming threshold = autovacuum_vacuum_threshold + (autovacuum_vacuum_scale_factor * estimated number of rows in the table)

Информация о последнем вакууме для всех таблиц базы:

SELECT relname, last_vacuum, last_autovacuum FROM pg_stat_user_tables order by last_autovacuum;

ps -axww | grep autovacuum

ps -ef | grep 'waiting'