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Integrate autovacuum functionality into the backend. There's still a

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few loose ends to be dealt with, but it seems to work.  Alvaro Herrera,
based on the contrib code by Matthew O'Connor.
This commit is contained in:
Tom Lane
2005-07-14 05:13:45 +00:00
parent f2bf2d2dc5
commit 29094193f5
25 changed files with 1678 additions and 90 deletions
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56
src/backend/utils/misc/guc.c
View File

@@ -10,7 +10,7 @@
* Written by Peter Eisentraut <peter_e@gmx.net>.
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/utils/misc/guc.c,v 1.273 2005/07/05 23:18:10 momjian Exp $
* $PostgreSQL: pgsql/src/backend/utils/misc/guc.c,v 1.274 2005/07/14 05:13:42 tgl Exp $
*
*--------------------------------------------------------------------
*/
@@ -45,6 +45,7 @@
#include "optimizer/prep.h"
#include "parser/parse_expr.h"
#include "parser/parse_relation.h"
#include "postmaster/autovacuum.h"
#include "postmaster/bgwriter.h"
#include "postmaster/syslogger.h"
#include "postmaster/postmaster.h"
@@ -286,6 +287,8 @@ const char *const config_group_names[] =
gettext_noop("Statistics / Monitoring"),
/* STATS_COLLECTOR */
gettext_noop("Statistics / Query and Index Statistics Collector"),
/* AUTOVACUUM */
gettext_noop("Auto Vacuum"),
/* CLIENT_CONN */
gettext_noop("Client Connection Defaults"),
/* CLIENT_CONN_STATEMENT */
@@ -678,6 +681,15 @@ static struct config_bool ConfigureNamesBool[] =
false, NULL, NULL
},
{
{"autovacuum", PGC_SIGHUP, AUTOVACUUM,
gettext_noop("Starts the auto vacuum subprocess."),
NULL
},
&autovacuum_start_daemon,
false, NULL, NULL
},
{
{"trace_notify", PGC_USERSET, DEVELOPER_OPTIONS,
gettext_noop("Generates debugging output for LISTEN and NOTIFY."),
@@ -1389,6 +1401,31 @@ static struct config_int ConfigureNamesInt[] =
BLCKSZ, BLCKSZ, BLCKSZ, NULL, NULL
},
{
{"autovacuum_naptime", PGC_SIGHUP, AUTOVACUUM,
gettext_noop("Time to sleep between autovacuum runs, in seconds."),
NULL
},
&autovacuum_naptime,
60, 0, INT_MAX, NULL, NULL
},
{
{"autovacuum_vacuum_threshold", PGC_SIGHUP, AUTOVACUUM,
gettext_noop("Minimum number of tuple updates or deletes prior to vacuum."),
NULL
},
&autovacuum_vac_thresh,
1000, 0, INT_MAX, NULL, NULL
},
{
{"autovacuum_analyze_threshold", PGC_SIGHUP, AUTOVACUUM,
gettext_noop("Minimum number of tuple inserts, updates or deletes prior to analyze."),
NULL
},
&autovacuum_anl_thresh,
500, 0, INT_MAX, NULL, NULL
},
/* End-of-list marker */
{
{NULL, 0, 0, NULL, NULL}, NULL, 0, 0, 0, NULL, NULL
@@ -1487,6 +1524,23 @@ static struct config_real ConfigureNamesReal[] =
0.5, 0.0, 1.0, assign_random_seed, show_random_seed
},
{
{"autovacuum_vacuum_scale_factor", PGC_SIGHUP, AUTOVACUUM,
gettext_noop("Number of tuple updates or deletes prior to vacuum as a fraction of reltuples."),
NULL
},
&autovacuum_vac_scale,
0.4, 0.0, 100.0, NULL, NULL
},
{
{"autovacuum_analyze_scale_factor", PGC_SIGHUP, AUTOVACUUM,
gettext_noop("Number of tuple inserts, updates or deletes prior to analyze as a fraction of reltuples."),
NULL
},
&autovacuum_anl_scale,
0.2, 0.0, 100.0, NULL, NULL
},
/* End-of-list marker */
{
{NULL, 0, 0, NULL, NULL}, NULL, 0.0, 0.0, 0.0, NULL, NULL

12
src/backend/utils/misc/postgresql.conf.sample
View File

@@ -284,6 +284,18 @@
#stats_reset_on_server_start = on
#---------------------------------------------------------------------------
# AUTOVACUUM PARAMETERS
#---------------------------------------------------------------------------
#autovacuum = false # enable autovacuum subprocess?
#autovacuum_naptime = 60 # time between autovacuum runs, in seconds
#autovacuum_vacuum_threshold = 1000 # min # of tuple updates before vacuum
#autovacuum_analyze_threshold = 500 # min # of tuple updates before analyze
#autovacuum_vacuum_scale_factor = 0.4 # fraction of rel size before vacuum
#autovacuum_analyze_scale_factor = 0.2 # fraction of rel size before analyze
#---------------------------------------------------------------------------
# CLIENT CONNECTION DEFAULTS
#---------------------------------------------------------------------------