Thanks Tom,
That's what I was beginning to think from reading. I just wasn't sure of the correlation between MAX_FSM_PAGES and the actual pages occupied by the table after a full vacuum. 1:1 ?? Any general rules?
Thanks,
Michael
Tom Lane wrote:
"Michael G. Martin" <michael@vpmonline.com> writes:
VACUUM verbose symbol_Data;
NOTICE: --Relation symbol_data--
NOTICE: Pages 767990: Changed 0, Empty 0; Tup 21595176: Vac 0, Keep 0,
^^^^^^
UnUsed 16560877. Total CPU 61.94s/6.94u sec elapsed 179.25 sec.
That seems to be a couple orders of magnitude above the default size of
the free space map (10000 pages IIRC). How big is your database in
total? You definitely need to increase MAX_FSM_PAGES in
postgresql.conf, but I can't tell how far on the basis of this one
datapoint.
You will probably want to do a VACUUM FULL to clean out some of the free
space and then see where you really stand on number of pages.
regards, tom lane