From ef23a77441b94d1e2fde3f359d2e49703c70c9ca Mon Sep 17 00:00:00 2001
From: Alvaro Herrera <alvherre@alvh.no-ip.org>
Date: Wed, 18 Apr 2007 16:44:18 +0000
Subject: Enable configurable log of autovacuum actions.  Initial patch from
 Simon Riggs, additional code and docs by me.  Per discussion.

---
 doc/src/sgml/config.sgml | 21 ++++++++++++++++++++-
 1 file changed, 20 insertions(+), 1 deletion(-)

(limited to 'doc/src')

diff --git a/doc/src/sgml/config.sgml b/doc/src/sgml/config.sgml
index e10d2d753a3..c5670dd906b 100644
--- a/doc/src/sgml/config.sgml
+++ b/doc/src/sgml/config.sgml
@@ -1,4 +1,4 @@
-<!-- $PostgreSQL: pgsql/doc/src/sgml/config.sgml,v 1.120 2007/04/16 18:29:50 alvherre Exp $ -->
+<!-- $PostgreSQL: pgsql/doc/src/sgml/config.sgml,v 1.121 2007/04/18 16:44:17 alvherre Exp $ -->
 
 <chapter Id="runtime-config">
   <title>Server Configuration</title>
@@ -3190,6 +3190,25 @@ SELECT * FROM parent WHERE key = 2400;
       </listitem>
      </varlistentry>
 
+     <varlistentry id="guc-log-autovacuum" xreflabel="log_autovacuum">
+      <term><varname>log_autovacuum</varname> (<type>integer</type>)</term>
+      <indexterm>
+       <primary><varname>log_autovacuum</> configuration parameter</primary>
+      </indexterm>
+      <listitem>
+       <para>
+        Causes actions executed by autovacuum to be logged if it ran for at
+        least the specified number of milliseconds.  Setting this to zero prints
+        all action durations. Minus-one (the default) disables logging
+        autovacuum action durations.  For example, if you set it to
+        <literal>250ms</literal> then all vacuums and analyzes that run
+        250ms or longer will be logged.  Enabling this parameter can be helpful
+        in tracking autovacuum activity.  This setting can only be set in
+        the <filename>postgresql.conf</> file or on the server command line.
+       </para>
+      </listitem>
+     </varlistentry>
+
      <varlistentry id="guc-autovacuum-naptime" xreflabel="autovacuum_naptime">
       <term><varname>autovacuum_naptime</varname> (<type>integer</type>)</term>
       <indexterm>
-- 
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