Hi all! I recently started using pg_autovacuum instead of scheduling vacuum analyzes in a system that needs to be taken to production soon.
However, I have noticed something funny that happens while using this. sometimes, some database operations take an unreasonably long time to finish. I have not been able to pin the problem down to any specific cause and the problem is also not reproducible( atleast I don't know how to make sure it happens again ) but what happens is that some queries take an unreasonably long time to finish. pg_stat_actiivity showed some selects running on a table with ~90k rows at one such time of weird behavior(they ran for a long long time). Is it possible that pg_autovacuum is auto vacuuming that same table at that time and there is some unnecessary waiting involved because the table is locked? I am a complete newbie to postgres and I am throwing darts in the dark, but can anyone give me any idea of where and what to look for? thanks a lot! ps ---------------------------(end of broadcast)--------------------------- TIP 7: don't forget to increase your free space map settings
