R: Vacuum full: alternatives?

Hi Andreas,

>I would suggest run only autovacuum, and with time you will see a not
>more growing table. There is no need for vacuum full.

So new record, when will be pg_bulkloaded, will replace "marked-free" location?

Thank you!
Francesco

________________________________________
Da: pgsql-general-owner(at)postgresql(dot)org [pgsql-general-owner(at)postgresql(dot)org] per conto di Andreas Kretschmer [andreas(at)a-kretschmer(dot)de]
Inviato: lunedì 20 giugno 2016 11.37
A: pgsql-general(at)postgresql(dot)org
Oggetto: Re: [GENERAL] Vacuum full: alternatives?

Am 20.06.2016 um 11:18 schrieb Job:
> Hello,
>
> we have a table with an heavy traffic of pg_bulkload and delete of records.
> The size pass, in only one day, for example for 1Gb to 4Gb and then 1Gb back.
>
> We have important problems on size and the only way to gain free space is issueing a vacuum full <table>.
> But the operation is very slow, sometimes 2/4 hours, and table is not available for services as it is locked.
>
> We do not delete everything at one (in this case the truncate woudl resolve the problem).
>
> The autovacuum is not able (same for normal vacuum) to free the spaces.
>

autovaccum marks space as free, but don't give the space back to os.

I would suggest run only autovacuum, and with time you will see a not
more growing table. There is no need for vacuum full.

Andreas

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