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Enable autovacuum in the default configuration, per discussion.

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This commit is contained in:
Alvaro Herrera 2007-01-16 18:26:02 +00:00
parent eb63cc3da8
commit 10a5e3348e
4 changed files with 12 additions and 9 deletions
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5
doc/src/sgml/config.sgml
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@ -1,4 +1,4 @@
<!-- $PostgreSQL: pgsql/doc/src/sgml/config.sgml,v 1.101 2007/01/09 22:16:46 momjian Exp $ -->
<!-- $PostgreSQL: pgsql/doc/src/sgml/config.sgml,v 1.102 2007/01/16 18:26:02 alvherre Exp $ -->
<chapter Id="runtime-config">
<title>Server Configuration</title>
@ -3043,7 +3043,8 @@ SELECT * FROM parent WHERE key = 2400;
<listitem>
<para>
Enables the collection of row-level statistics on database
activity. This parameter is off by default.
activity. This parameter is on by default, because the autovacuum
daemon needs the collected information.
Only superusers can change this setting.
</para>
</listitem>

6
doc/src/sgml/maintenance.sgml
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@ -1,4 +1,4 @@
<!-- $PostgreSQL: pgsql/doc/src/sgml/maintenance.sgml,v 1.65 2006/12/27 14:55:17 momjian Exp $ -->
<!-- $PostgreSQL: pgsql/doc/src/sgml/maintenance.sgml,v 1.66 2007/01/16 18:26:02 alvherre Exp $ -->
<chapter id="maintenance">
<title>Routine Database Maintenance Tasks</title>
@ -477,7 +477,9 @@ HINT: Stop the postmaster and use a standalone backend to VACUUM in "mydb".
linkend="guc-stats-start-collector"> and <xref
linkend="guc-stats-row-level"> are set to <literal>true</literal>. Also,
it's important to allow a slot for the autovacuum process when choosing
the value of <xref linkend="guc-superuser-reserved-connections">.
the value of <xref linkend="guc-superuser-reserved-connections">. In
the default configuration, autovacuuming is enabled and the related
configuration parameters are appropriately set.
</para>
<para>

6
src/backend/utils/misc/guc.c
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@ -10,7 +10,7 @@
* Written by Peter Eisentraut <peter_e@gmx.net>.
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/utils/misc/guc.c,v 1.367 2007/01/09 22:16:46 momjian Exp $
* $PostgreSQL: pgsql/src/backend/utils/misc/guc.c,v 1.368 2007/01/16 18:26:02 alvherre Exp $
*
*--------------------------------------------------------------------
*/
@ -711,7 +711,7 @@ static struct config_bool ConfigureNamesBool[] =
NULL
},
&pgstat_collect_tuplelevel,
false, NULL, NULL
true, NULL, NULL
},
{
{"stats_block_level", PGC_SUSET, STATS_COLLECTOR,
@ -748,7 +748,7 @@ static struct config_bool ConfigureNamesBool[] =
NULL
},
&autovacuum_start_daemon,
false, NULL, NULL
true, NULL, NULL
},
{

4
src/backend/utils/misc/postgresql.conf.sample
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@ -349,7 +349,7 @@
#stats_start_collector = on # needed for block or row stats
# (change requires restart)
#stats_block_level = off
#stats_row_level = off
#stats_row_level = on
#stats_reset_on_server_start = off # (change requires restart)
@ -365,7 +365,7 @@
# AUTOVACUUM PARAMETERS
#---------------------------------------------------------------------------
#autovacuum = off # enable autovacuum subprocess?
#autovacuum = on # enable autovacuum subprocess?
# 'on' requires stats_start_collector
# and stats_row_level to also be on
#autovacuum_naptime = 1min # time between autovacuum runs