Hi, I am running pg 7.4.1 on linux box. I have a midle size DB with many updates and after it I try to run vacuum full analyze. It takes about 2 h. If I try to dump and reload the DB it take 20 min.
How can I improve the vacuum full analyze time? My configuration: shared_buffers = 15000 # min 16, at least max_connections*2, 8KB each sort_mem = 10000 # min 64, size in KB vacuum_mem = 32000 # min 1024, size in KB effective_cache_size = 40000 # typically 8KB each #max_fsm_pages = 20000 # min max_fsm_relations*16, 6 bytes each #max_fsm_relations = 1000 # min 100, ~50 bytes each regards, ivan. ---------------------------(end of broadcast)--------------------------- TIP 9: the planner will ignore your desire to choose an index scan if your joining column's datatypes do not match