Re: Vacuum not working

On 10/8/20 12:32 PM, Domen Šetar wrote:
>
> Hi guys,
>
> I have following problem: I use POWA to collect performance data from 20
> postgresql servers. Vaccum doesn't clean the largest table after POWA
> database is growing large. Here are data taken at 19:27:
>
>                   relname | last_vacuum | last_autovacuum  |    
> n_tup      | dead_tup    |  av_threshold  | expect_av
>
> --------------------------------------------+-------------+------------------+----------------+----------------+----------------+-----------
>
> powa_all_relations_history_current |             | 2020-10-08 18:24 |   
> 162,254,592 | 82,045,219 |        162,280 | *
>
> Can you please advise me how to tune poasgresql vacuum parameters to get
> this table cleaned? All other tables are vacummed as expected.
>

Is there an open transaction causing the vacuum to not free thee dead tuples?

--
Angular momentum makes the world go 'round.