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Add vacuum and analyze counters to pg_stat_*_tables views.

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This commit is contained in:
Magnus Hagander 2010-08-21 10:59:17 +00:00
parent efe2e9a758
commit 946045f04d
7 changed files with 147 additions and 15 deletions
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50
doc/src/sgml/monitoring.sgml
View File

@ -1,4 +1,4 @@
<!-- $PostgreSQL: pgsql/doc/src/sgml/monitoring.sgml,v 1.84 2010/08/17 04:37:20 petere Exp $ -->
<!-- $PostgreSQL: pgsql/doc/src/sgml/monitoring.sgml,v 1.85 2010/08/21 10:59:17 mha Exp $ -->
<chapter id="monitoring">
<title>Monitoring Database Activity</title>
@ -117,9 +117,9 @@ postgres: <replaceable>user</> <replaceable>database</> <replaceable>host</> <re
is a subsystem that supports collection and reporting of information about
server activity. Presently, the collector can count accesses to tables
and indexes in both disk-block and individual-row terms. It also tracks
the total number of rows in each table, and the last vacuum and analyze times
for each table. It can also count calls to user-defined functions and
the total time spent in each one.
the total number of rows in each table, and information about vacuum and
analyze actions for each table. It can also count calls to user-defined
functions and the total time spent in each one.
</para>
<para>
@ -293,7 +293,11 @@ postgres: <replaceable>user</> <replaceable>database</> <replaceable>host</> <re
the last time the table was vacuumed manually,
the last time it was vacuumed by the autovacuum daemon,
the last time it was analyzed manually,
and the last time it was analyzed by the autovacuum daemon.
the last time it was analyzed by the autovacuum daemon,
number of times it has been vacuumed manually,
number of times it has been vacuumed by the autovacuum daemon,
number of times it has been analyzed manually,
and the number of times it has been analyzed by the autovacuum daemon.
</entry>
</row>
@ -314,8 +318,8 @@ postgres: <replaceable>user</> <replaceable>database</> <replaceable>host</> <re
<entry>Similar to <structname>pg_stat_all_tables</>, but counts actions
taken so far within the current transaction (which are <emphasis>not</>
yet included in <structname>pg_stat_all_tables</> and related views).
The columns for numbers of live and dead rows and last-vacuum and
last-analyze times are not present in this view.</entry>
The columns for numbers of live and dead rows and vacuum and
analyze actions are not present in this view.</entry>
</row>
<row>
@ -718,6 +722,38 @@ postgres: <replaceable>user</> <replaceable>database</> <replaceable>host</> <re
</entry>
</row>
<row>
<entry><literal><function>pg_stat_get_vacuum_count</function>(<type>oid</type>)</literal></entry>
<entry><type>bigint</type></entry>
<entry>
The number of times this table has been vacuumed manually
</entry>
</row>
<row>
<entry><literal><function>pg_stat_get_autovacuum_count</function>(<type>oid</type>)</literal></entry>
<entry><type>bigint</type></entry>
<entry>
The number of times this table has been vacuumed by the autovacuum daemon
</entry>
</row>
<row>
<entry><literal><function>pg_stat_get_analyze_count</function>(<type>oid</type>)</literal></entry>
<entry><type>bigint</type></entry>
<entry>
The number of times this table has been analyzed manually
</entry>
</row>
<row>
<entry><literal><function>pg_stat_get_autoanalyze_count</function>(<type>oid</type>)</literal></entry>
<entry><type>bigint</type></entry>
<entry>
The number of times this table has been analyzed by the autovacuum daemon
</entry>
</row>
<row>
<entry><literal><function>pg_stat_get_xact_numscans</function>(<type>oid</type>)</literal></entry>
<entry><type>bigint</type></entry>

8
src/backend/catalog/system_views.sql
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@ -3,7 +3,7 @@
*
* Copyright (c) 1996-2010, PostgreSQL Global Development Group
*
* $PostgreSQL: pgsql/src/backend/catalog/system_views.sql,v 1.67 2010/08/08 16:27:03 tgl Exp $
* $PostgreSQL: pgsql/src/backend/catalog/system_views.sql,v 1.68 2010/08/21 10:59:17 mha Exp $
*/
CREATE VIEW pg_roles AS
@ -201,7 +201,11 @@ CREATE VIEW pg_stat_all_tables AS
pg_stat_get_last_vacuum_time(C.oid) as last_vacuum,
pg_stat_get_last_autovacuum_time(C.oid) as last_autovacuum,
pg_stat_get_last_analyze_time(C.oid) as last_analyze,
pg_stat_get_last_autoanalyze_time(C.oid) as last_autoanalyze
pg_stat_get_last_autoanalyze_time(C.oid) as last_autoanalyze,
pg_stat_get_vacuum_count(C.oid) AS vacuum_count,
pg_stat_get_autovacuum_count(C.oid) AS autovacuum_count,
pg_stat_get_analyze_count(C.oid) AS analyze_count,
pg_stat_get_autoanalyze_count(C.oid) AS autoanalyze_count
FROM pg_class C LEFT JOIN
pg_index I ON C.oid = I.indrelid
LEFT JOIN pg_namespace N ON (N.oid = C.relnamespace)

18
src/backend/postmaster/pgstat.c
View File

@ -13,7 +13,7 @@
*
* Copyright (c) 2001-2010, PostgreSQL Global Development Group
*
* $PostgreSQL: pgsql/src/backend/postmaster/pgstat.c,v 1.205 2010/08/08 16:27:03 tgl Exp $
* $PostgreSQL: pgsql/src/backend/postmaster/pgstat.c,v 1.206 2010/08/21 10:59:17 mha Exp $
* ----------
*/
#include "postgres.h"
@ -3192,6 +3192,10 @@ pgstat_get_tab_entry(PgStat_StatDBEntry *dbentry, Oid tableoid, bool create)
result->autovac_vacuum_timestamp = 0;
result->analyze_timestamp = 0;
result->autovac_analyze_timestamp = 0;
result->vacuum_count = 0;
result->autovac_vacuum_count = 0;
result->analyze_count = 0;
result->autovac_analyze_count = 0;
}
return result;
@ -4114,9 +4118,15 @@ pgstat_recv_vacuum(PgStat_MsgVacuum *msg, int len)
tabentry->n_dead_tuples = 0;
if (msg->m_autovacuum)
{
tabentry->autovac_vacuum_timestamp = msg->m_vacuumtime;
tabentry->autovac_vacuum_count++;
}
else
{
tabentry->vacuum_timestamp = msg->m_vacuumtime;
tabentry->vacuum_count++;
}
}
/* ----------
@ -4151,9 +4161,15 @@ pgstat_recv_analyze(PgStat_MsgAnalyze *msg, int len)
tabentry->changes_since_analyze = 0;
if (msg->m_autovacuum)
{
tabentry->autovac_analyze_timestamp = msg->m_analyzetime;
tabentry->autovac_analyze_count++;
}
else
{
tabentry->analyze_timestamp = msg->m_analyzetime;
tabentry->analyze_count++;
}
}

66
src/backend/utils/adt/pgstatfuncs.c
View File

@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/utils/adt/pgstatfuncs.c,v 1.61 2010/08/08 16:27:04 tgl Exp $
* $PostgreSQL: pgsql/src/backend/utils/adt/pgstatfuncs.c,v 1.62 2010/08/21 10:59:17 mha Exp $
*
*-------------------------------------------------------------------------
*/
@ -38,6 +38,10 @@ extern Datum pg_stat_get_last_vacuum_time(PG_FUNCTION_ARGS);
extern Datum pg_stat_get_last_autovacuum_time(PG_FUNCTION_ARGS);
extern Datum pg_stat_get_last_analyze_time(PG_FUNCTION_ARGS);
extern Datum pg_stat_get_last_autoanalyze_time(PG_FUNCTION_ARGS);
extern Datum pg_stat_get_vacuum_count(PG_FUNCTION_ARGS);
extern Datum pg_stat_get_autovacuum_count(PG_FUNCTION_ARGS);
extern Datum pg_stat_get_analyze_count(PG_FUNCTION_ARGS);
extern Datum pg_stat_get_autoanalyze_count(PG_FUNCTION_ARGS);
extern Datum pg_stat_get_function_calls(PG_FUNCTION_ARGS);
extern Datum pg_stat_get_function_time(PG_FUNCTION_ARGS);
@ -346,6 +350,66 @@ pg_stat_get_last_autoanalyze_time(PG_FUNCTION_ARGS)
PG_RETURN_TIMESTAMPTZ(result);
}
Datum
pg_stat_get_vacuum_count(PG_FUNCTION_ARGS)
{
Oid relid = PG_GETARG_OID(0);
int64 result;
PgStat_StatTabEntry *tabentry;
if ((tabentry = pgstat_fetch_stat_tabentry(relid)) == NULL)
result = 0;
else
result = (int64) (tabentry->vacuum_count);
PG_RETURN_INT64(result);
}
Datum
pg_stat_get_autovacuum_count(PG_FUNCTION_ARGS)
{
Oid relid = PG_GETARG_OID(0);
int64 result;
PgStat_StatTabEntry *tabentry;
if ((tabentry = pgstat_fetch_stat_tabentry(relid)) == NULL)
result = 0;
else
result = (int64) (tabentry->autovac_vacuum_count);
PG_RETURN_INT64(result);
}
Datum
pg_stat_get_analyze_count(PG_FUNCTION_ARGS)
{
Oid relid = PG_GETARG_OID(0);
int64 result;
PgStat_StatTabEntry *tabentry;
if ((tabentry = pgstat_fetch_stat_tabentry(relid)) == NULL)
result = 0;
else
result = (int64) (tabentry->analyze_count);
PG_RETURN_INT64(result);
}
Datum
pg_stat_get_autoanalyze_count(PG_FUNCTION_ARGS)
{
Oid relid = PG_GETARG_OID(0);
int64 result;
PgStat_StatTabEntry *tabentry;
if ((tabentry = pgstat_fetch_stat_tabentry(relid)) == NULL)
result = 0;
else
result = (int64) (tabentry->autovac_analyze_count);
PG_RETURN_INT64(result);
}
Datum
pg_stat_get_function_calls(PG_FUNCTION_ARGS)
{

4
src/include/catalog/catversion.h
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@ -37,7 +37,7 @@
* Portions Copyright (c) 1996-2010, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $PostgreSQL: pgsql/src/include/catalog/catversion.h,v 1.595 2010/08/13 18:36:24 tgl Exp $
* $PostgreSQL: pgsql/src/include/catalog/catversion.h,v 1.596 2010/08/21 10:59:17 mha Exp $
*
*-------------------------------------------------------------------------
*/
@ -53,6 +53,6 @@
*/
/* yyyymmddN */
#define CATALOG_VERSION_NO 201008131
#define CATALOG_VERSION_NO 201008211
#endif

10
src/include/catalog/pg_proc.h
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@ -7,7 +7,7 @@
* Portions Copyright (c) 1996-2010, PostgreSQL Global Development Group
* Portions Copyright (c) 1994, Regents of the University of California
*
* $PostgreSQL: pgsql/src/include/catalog/pg_proc.h,v 1.579 2010/08/13 18:36:25 tgl Exp $
* $PostgreSQL: pgsql/src/include/catalog/pg_proc.h,v 1.580 2010/08/21 10:59:17 mha Exp $
*
* NOTES
* The script catalog/genbki.pl reads this file and generates .bki
@ -3029,6 +3029,14 @@ DATA(insert OID = 2783 ( pg_stat_get_last_analyze_time PGNSP PGUID 12 1 0 0 f f
DESCR("statistics: last manual analyze time for a table");
DATA(insert OID = 2784 ( pg_stat_get_last_autoanalyze_time PGNSP PGUID 12 1 0 0 f f f t f s 1 0 1184 "26" _null_ _null_ _null_ _null_ pg_stat_get_last_autoanalyze_time _null_ _null_ _null_ ));
DESCR("statistics: last auto analyze time for a table");
DATA(insert OID = 3054 ( pg_stat_get_vacuum_count PGNSP PGUID 12 1 0 0 f f f t f s 1 0 20 "26" _null_ _null_ _null_ _null_ pg_stat_get_vacuum_count _null_ _null_ _null_ ));
DESCR("statistics: number of manual vacuums for a table");
DATA(insert OID = 3055 ( pg_stat_get_autovacuum_count PGNSP PGUID 12 1 0 0 f f f t f s 1 0 20 "26" _null_ _null_ _null_ _null_ pg_stat_get_autovacuum_count _null_ _null_ _null_ ));
DESCR("statistics: number of auto vacuums for a table");
DATA(insert OID = 3056 ( pg_stat_get_analyze_count PGNSP PGUID 12 1 0 0 f f f t f s 1 0 20 "26" _null_ _null_ _null_ _null_ pg_stat_get_analyze_count _null_ _null_ _null_ ));
DESCR("statistics: number of manual analyzes for a table");
DATA(insert OID = 3057 ( pg_stat_get_autoanalyze_count PGNSP PGUID 12 1 0 0 f f f t f s 1 0 20 "26" _null_ _null_ _null_ _null_ pg_stat_get_autoanalyze_count _null_ _null_ _null_ ));
DESCR("statistics: number of auto analyzes for a table");
DATA(insert OID = 1936 ( pg_stat_get_backend_idset PGNSP PGUID 12 1 100 0 f f f t t s 0 0 23 "" _null_ _null_ _null_ _null_ pg_stat_get_backend_idset _null_ _null_ _null_ ));
DESCR("statistics: currently active backend IDs");
DATA(insert OID = 2022 ( pg_stat_get_activity PGNSP PGUID 12 1 100 0 f f f f t s 1 0 2249 "23" "{23,26,23,26,25,25,16,1184,1184,1184,869,23}" "{i,o,o,o,o,o,o,o,o,o,o,o}" "{pid,datid,procpid,usesysid,application_name,current_query,waiting,xact_start,query_start,backend_start,client_addr,client_port}" _null_ pg_stat_get_activity _null_ _null_ _null_ ));

6
src/include/pgstat.h
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@ -5,7 +5,7 @@
*
* Copyright (c) 2001-2010, PostgreSQL Global Development Group
*
* $PostgreSQL: pgsql/src/include/pgstat.h,v 1.90 2010/08/08 16:27:06 tgl Exp $
* $PostgreSQL: pgsql/src/include/pgstat.h,v 1.91 2010/08/21 10:59:17 mha Exp $
* ----------
*/
#ifndef PGSTAT_H
@ -525,9 +525,13 @@ typedef struct PgStat_StatTabEntry
PgStat_Counter blocks_hit;
TimestampTz vacuum_timestamp; /* user initiated vacuum */
PgStat_Counter vacuum_count;
TimestampTz autovac_vacuum_timestamp; /* autovacuum initiated */
PgStat_Counter autovac_vacuum_count;
TimestampTz analyze_timestamp; /* user initiated */
PgStat_Counter analyze_count;
TimestampTz autovac_analyze_timestamp; /* autovacuum initiated */
PgStat_Counter autovac_analyze_count;
} PgStat_StatTabEntry;