Re: number of relations reported by vacuumdb -av

never mind....I found the answer in the archives.postgresql.org. The
answer is 'yes' I use the sum of relations from all of the databases. So
I have reset 'max_fsm_relations' from 1000 to 2000.

Irene Barg wrote:
> Hi,
>
> I have a PostgreSQL installation with 8 databases (counting postgres,
> template0, and template1). I run 'vacuumdb -z' daily on 3 of the largest
> user databases. The vacuumdb logs show the 'max_fsm_pages' need to be
> increased with almost each vacuum. So I did a 'vacuumdb -av' on all the
> db's:
>> INFO:  free space map contains 81016 pages in 100 relations
>> DETAIL:  A total of 80000 page slots are in use (including overhead).
>> 187792 page slots are required to track all free space.
>> Current limits are:  80000 page slots, 1000 relations, using 534 KB.
>> NOTICE:  number of page slots needed (187792) exceeds max_fsm_pages
>> (80000)
>> HINT:  Consider increasing the configuration parameter "max_fsm_pages"
>> to a value over 187792.
>> VACUUM
>
> I have a couple questions.
>
> 1) I can increase 'max_fsm_pages' from 80K to 200K, but why does it keep
> growing?
>
> The main database sees on average 2500-5000 rows inserted per day, and
> deletes are relatively small (although I don't have stats on deletes).
>
> 2) How is '100 relations' getting calculated?
>
> If I connect to each one of my 8 db's and do:
>
> select count(*) from pg_class;
>
> The total number of relations is 1725. So shouldn't I increase
> 'max_fsm_relations' from 1000 to 1725?
>
> Thank you in advance.
>
> -- irene
> ---------------------------------------------------------------------
> Irene Barg                    Email:  ibarg@noao.edu
> NOAO/AURA Inc.                 http://www.noao.edu/noao/staff/ibarg
> 950 N. Cherry Ave.            Voice:  520-318-8273
> Tucson, AZ  85726 USA           FAX:  520-318-8360
> ---------------------------------------------------------------------
>

--
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Irene Barg                    Email:  ibarg@noao.edu
NOAO/AURA Inc.                 http://www.noao.edu/noao/staff/ibarg
950 N. Cherry Ave.            Voice:  520-318-8273
Tucson, AZ  85726 USA           FAX:  520-318-8360
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