Enable autovacuum in the default configuration, per discussion.

alvherre · alvherre · commit 10a5e3348eab · 2007-01-16T18:26:02.000Z
diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
@@ -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>
diff --git a/doc/src/sgml/maintenance.sgml b/doc/src/sgml/maintenance.sgml
@@ -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>
diff --git a/src/backend/utils/misc/guc.c b/src/backend/utils/misc/guc.c
@@ -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
 	},
 
 	{
diff --git a/src/backend/utils/misc/postgresql.conf.sample b/src/backend/utils/misc/postgresql.conf.sample
@@ -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

Original file line number	Diff line number	Diff line change
`@@ -10,7 +10,7 @@`
`10`	`10`	`* Written by Peter Eisentraut <peter_e@gmx.net>.`
`11`	`11`	`*`
`12`	`12`	`* IDENTIFICATION`
`13`		`- * $PostgreSQL: pgsql/src/backend/utils/misc/guc.c,v 1.367 2007/01/09 22:16:46 momjian Exp $`
	`13`	`+ * $PostgreSQL: pgsql/src/backend/utils/misc/guc.c,v 1.368 2007/01/16 18:26:02 alvherre Exp $`
`14`	`14`	`*`
`15`	`15`	`*--------------------------------------------------------------------`
`16`	`16`	`*/`
`@@ -711,7 +711,7 @@ static struct config_bool ConfigureNamesBool[] =`
`711`	`711`	`NULL`
`712`	`712`	`},`
`713`	`713`	`&pgstat_collect_tuplelevel,`
`714`		`- false, NULL, NULL`
	`714`	`+ true, NULL, NULL`
`715`	`715`	`},`
`716`	`716`	`{`
`717`	`717`	`{"stats_block_level", PGC_SUSET, STATS_COLLECTOR,`
`@@ -748,7 +748,7 @@ static struct config_bool ConfigureNamesBool[] =`
`748`	`748`	`NULL`
`749`	`749`	`},`
`750`	`750`	`&autovacuum_start_daemon,`
`751`		`- false, NULL, NULL`
	`751`	`+ true, NULL, NULL`
`752`	`752`	`},`
`753`	`753`
`754`	`754`	`{`