Autovacuum 不会清除数据库。数据库中间数据库 Postgres 10.18，AWS RDS（vCPU 2，RAM 8Gb，SSD（gp2）1100Gib）
表“spree_datafeed_products”
relid | 16556
schemaname | public
relname | spree_datafeed_products
seq_scan | 20
seq_tup_read | 365522436
idx_scan | 962072108
idx_tup_fetch | 9929276855
n_tup_ins | 2846455
n_tup_upd | 35778058
n_tup_del | 284291955
n_tup_hot_upd | 0
n_live_tup | 3546840
n_dead_tup | 338790851
n_mod_since_analyze | 307930753
last_vacuum |
last_autovacuum |
last_analyze |
last_autoanalyze | 2022-04-29 13:01:43.985749+00
vacuum_count | 0
autovacuum_count | 0
analyze_count | 0
autoanalyze_count | 1
表和索引大小：
indexname | size
index_spree_datafeed_products_on_updated_at | 48 GB
index_spree_datafeed_products_on_state | 35 GB
index_spree_datafeed_products_on_size_variant_field | 40 GB
index_spree_datafeed_products_on_product_id | 32 GB
index_spree_datafeed_products_on_original_id | 31 GB
index_spree_datafeed_products_on_datafeed_id | 42 GB
index_spree_datafeed_products_on_datafeed_id_and_original_id | 31 GB
index_spree_datafeed_products_on_data_hash | 39 GB
spree_datafeed_products_pkey | 18 GB
pg_size_pretty - 419 GB
工人：
datid | 16404
datname | milanstyle_production
pid | 2274
backend_start | 2022-05-01 19:52:00.066097+00
xact_start | 2022-05-01 19:52:00.23692+00
query_start | 2022-05-01 19:52:00.23692+00
state_change | 2022-05-01 19:52:00.236921+00
wait_event_type |
wait_event |
state | active
backend_xid |
backend_xmin | 1301636863
query | autovacuum: VACUUM ANALYZE public.spree_datafeed_products
backend_type | autovacuum worker
设置：
autovacuum on
autovacuum_analyze_scale_factor 0.05
autovacuum_analyze_threshold 50
autovacuum_freeze_max_age 200000000
autovacuum_max_workers 3
autovacuum_multixact_freeze_max_age 400000000
autovacuum_naptime 30
autovacuum_vacuum_cost_delay 20
autovacuum_vacuum_cost_limit -1
autovacuum_vacuum_scale_factor 0.1
autovacuum_vacuum_threshold 50
垃圾清理脚本积累了大量的删除条目。我们已经等待了一个多星期（自动清关）。问题是什么？为什么数据库失败？