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Enable configurable log of autovacuum actions. Initial patch from Simon

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Riggs, additional code and docs by me.  Per discussion.
This commit is contained in:
Alvaro Herrera
2007-04-18 16:44:18 +00:00
parent 432ea3cffd
commit ef23a77441
7 changed files with 134 additions and 15 deletions
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21
doc/src/sgml/config.sgml
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@ -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>