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postgres 8.2.4 new installation - trying to get autovacuum to work

From: "Mark Steben" <msteben(at)autorevenue(dot)com>
To: <pgsql-admin(at)postgresql(dot)org>
Subject: postgres 8.2.4 new installation - trying to get autovacuum to work
Date: 2007-10-11 18:21:33
Message-ID: 00b401c80c33$8da81f10$b501a8c0@D1RPQZB1 (view raw, whole thread or download thread mbox)
Lists: pgsql-admin
Hi, I'm new to 8.2 and trying to get our testing server to autovacuum.

I have a table that  has roughly 116000 rows

 I have applied 40,000 updates.


The applicable postgresql.conf parameters are as follows:


 autovacuum                                    | on

 autovacuum_analyze_scale_factor   | 0.1

 autovacuum_analyze_threshold       | 250

 autovacuum_freeze_max_age         | 200000000

 autovacuum_naptime                      | 60

 autovacuum_vacuum_cost_delay    | -1

 autovacuum_vacuum_cost_limit      | -1

 autovacuum_vacuum_scale_factor  | 0.2

 autovacuum_vacuum_threshold      | 500


stats_row_level                               | on

 stats_start_collector                       | on


given the scale factor and the threshold I expected autovacuum to kick in at
about the 23000 th update


I am looking at the pg_logs   Should I be looking elsewhere?
Log_min_duration_statement currently set to 2000 milliseconds.

The updates show in the logs.  The vacuum does not.


Any help would be appreciated.  Thank  you,


Mark Steben

Senior Database Administrator
A Dominion Enterprises Company
480 Pleasant Street
Suite B200
Lee, MA 01238
413-243-4800 Home Office 
413-243-4809 Corporate Fax

msteben <blocked::mailto:name(at)autorevenue(dot)com>

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