Schwenker, Stephen wrote: > I'm having a major Vacuuming problem. I used to do a full vacuum every > morning on my postgres database to clean up empty space on a table but > because of it's size, the locking of the database causes my application > server to max out the database connections and causes database errors. > To fix that problem, I have turned off the full vacuum and are just > doing a standard analyze vacuum. No I'm getting very close to running > out of space on my disks because the table keeps on growing and the > database is not re-using deleted record space. I know this because I > delete 99% of the records from the table after I have exported them but > the size of the database tables are not decreasing. Now I can't shrink > the size of the tables because the full vacuum takes too long to run > Over 2 hours and locks the table for too long. You probably need to vacuum some tables more often than once a day; and/or increase the FSM settings. After a deletion of 99% of records, you probably should do a VACUUM FULL anyway (or maybe CLUSTER); plain VACUUM won't be able to recover from such a shock. -- Alvaro Herrera http://www.CommandPrompt.com/ PostgreSQL Replication, Consulting, Custom Development, 24x7 support
