Folks,
Per Neil Conway, here's some doc patches re: the autovacuum daemon's
behavior. Should this be back-patched to 8.2x?
Cheers,
D
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David Fetter <[EMAIL PROTECTED]> http://fetter.org/
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Index: doc/src/sgml/config.sgml
===================================================================
RCS file: /projects/cvsroot/pgsql/doc/src/sgml/config.sgml,v
retrieving revision 1.122
diff -c -r1.122 config.sgml
*** doc/src/sgml/config.sgml 20 Apr 2007 02:37:37 -0000 1.122
--- doc/src/sgml/config.sgml 14 May 2007 01:16:02 -0000
***************
*** 3172,3177 ****
--- 3172,3185 ----
This parameter can only be set in the <filename>postgresql.conf</>
file or on the server command line.
</para>
+ <note>
+ <para>
+ Even when this variable is set to off, the autovacuum daemon
+ will run periodically in order to prevent transaction_id
+ wraparound. See <xref linkend="vacuum-for-wraparound"> for
+ more information.
+ </para>
+ </note>
</listitem>
</varlistentry>
Index: src/backend/utils/misc/postgresql.conf.sample
===================================================================
RCS file:
/projects/cvsroot/pgsql/src/backend/utils/misc/postgresql.conf.sample,v
retrieving revision 1.215
diff -c -r1.215 postgresql.conf.sample
*** src/backend/utils/misc/postgresql.conf.sample 18 Apr 2007 16:44:18
-0000 1.215
--- src/backend/utils/misc/postgresql.conf.sample 14 May 2007 01:16:02
-0000
***************
*** 372,377 ****
--- 372,379 ----
#---------------------------------------------------------------------------
# AUTOVACUUM PARAMETERS
#---------------------------------------------------------------------------
+ # Note: even when autovacuum is turned off, the autovacuum daemon will
+ # run in order to prevent transaction id wraparound.
#autovacuum = on # enable autovacuum subprocess?
# 'on' requires stats_start_collector
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