Alvaro Herrera wrote: > Rafael Martinez wrote: >> The 'problem' is that performance decrease during the day and the only >> thing that helps is to run CLUSTER on the table with problems. VACUUM >> ANALYZE does not help. > > Probably because all the live tuples are clustered at the end of the > table, and the initial pages are polluted with dead tuples. Try > vacuuming the table much more often, say every few minutes. > > Your table is 2536 pages long, but it could probably be in the vicinity > of 700 ... > We run VACUUM ANALYZE every 10 minuttes during 2-3 days to see if it helped, but when it didn't we when back to the old configuration (1 time everyday) Yes, after a CLUSTER we are using 517 pages. But the table does not grow much, it is always around 12-20MB, it looks like vacuum works without problems. regards, -- Rafael Martinez, <r.m.guerrero@xxxxxxxxxxx> Center for Information Technology Services University of Oslo, Norway PGP Public Key: http://folk.uio.no/rafael/ ---------------------------(end of broadcast)--------------------------- TIP 6: explain analyze is your friend
