Re: [ADMIN] Autovac vs manual with analyze

2010-03-18 Thread Simon Riggs
On Mon, 2010-03-15 at 13:20 -0500, Scott Whitney wrote: My problem is that each Saturday at midnight, I have to start a vacuumdb -f -z -a or my pg_clog dir never clears out. Why is your pg_clog dir a problem? So, my questions are: a) Is the manual vacuum needed for performance reasons, or

Re: [ADMIN] Autovac vs manual with analyze

2010-03-15 Thread Scott Whitney
I've got about 44GB of data in a few hundred production databases. I'm using PG 8.1.4, but upgrading today (even to the latest 8.1) is not an option. I know, I know. I wish it were, and it's slated here for q2, but I cannot even apply maintenance patches without a full testing cycle. My

[ADMIN] Autovac vs manual with analyze

2010-03-15 Thread Scott Whitney
I've got about 44GB of data in a few hundred production databases. I'm using PG 8.1.4, but upgrading today (even to the latest 8.1) is not an option. I know, I know. I wish it were, and it's slated here for q2, but I cannot even apply maintenance patches without a full testing cycle. My

Re: [ADMIN] Autovac vs manual with analyze

2010-03-15 Thread Alvaro Herrera
Scott Whitney wrote: So, my questions are: a) Is the manual vacuum needed for performance reasons, or is auto-vac sufficient? b) How do my settings look? c) Is there a way that the clogs get cleared via autovac, would a full vac of just template1/template0 (if that last is possible)