Add vacuum and analyze counters to pg_stat_*_tables views.
This commit is contained in:
Magnus Hagander
parent
efe2e9a758
commit
946045f04d
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@ -1,4 +1,4 @@
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<!-- $PostgreSQL: pgsql/doc/src/sgml/monitoring.sgml,v 1.84 2010/08/17 04:37:20 petere Exp $ -->
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<!-- $PostgreSQL: pgsql/doc/src/sgml/monitoring.sgml,v 1.85 2010/08/21 10:59:17 mha Exp $ -->
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<chapter id="monitoring">
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<title>Monitoring Database Activity</title>
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@ -117,9 +117,9 @@ postgres: <replaceable>user</> <replaceable>database</> <replaceable>host</> <re
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is a subsystem that supports collection and reporting of information about
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server activity. Presently, the collector can count accesses to tables
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and indexes in both disk-block and individual-row terms. It also tracks
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the total number of rows in each table, and the last vacuum and analyze times
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for each table. It can also count calls to user-defined functions and
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the total time spent in each one.
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the total number of rows in each table, and information about vacuum and
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analyze actions for each table. It can also count calls to user-defined
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functions and the total time spent in each one.
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</para>
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<para>
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@ -293,7 +293,11 @@ postgres: <replaceable>user</> <replaceable>database</> <replaceable>host</> <re
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the last time the table was vacuumed manually,
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the last time it was vacuumed by the autovacuum daemon,
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the last time it was analyzed manually,
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and the last time it was analyzed by the autovacuum daemon.
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the last time it was analyzed by the autovacuum daemon,
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number of times it has been vacuumed manually,
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number of times it has been vacuumed by the autovacuum daemon,
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number of times it has been analyzed manually,
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and the number of times it has been analyzed by the autovacuum daemon.
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</entry>
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</row>
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@ -314,8 +318,8 @@ postgres: <replaceable>user</> <replaceable>database</> <replaceable>host</> <re
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<entry>Similar to <structname>pg_stat_all_tables</>, but counts actions
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taken so far within the current transaction (which are <emphasis>not</>
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yet included in <structname>pg_stat_all_tables</> and related views).
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The columns for numbers of live and dead rows and last-vacuum and
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last-analyze times are not present in this view.</entry>
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The columns for numbers of live and dead rows and vacuum and
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analyze actions are not present in this view.</entry>
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</row>
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<row>
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@ -718,6 +722,38 @@ postgres: <replaceable>user</> <replaceable>database</> <replaceable>host</> <re
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</entry>
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</row>
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<row>
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<entry><literal><function>pg_stat_get_vacuum_count</function>(<type>oid</type>)</literal></entry>
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<entry><type>bigint</type></entry>
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<entry>
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The number of times this table has been vacuumed manually
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</entry>
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</row>
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<row>
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<entry><literal><function>pg_stat_get_autovacuum_count</function>(<type>oid</type>)</literal></entry>
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<entry><type>bigint</type></entry>
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<entry>
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The number of times this table has been vacuumed by the autovacuum daemon
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</entry>
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</row>
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<row>
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<entry><literal><function>pg_stat_get_analyze_count</function>(<type>oid</type>)</literal></entry>
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<entry><type>bigint</type></entry>
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<entry>
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The number of times this table has been analyzed manually
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</entry>
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</row>
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<row>
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<entry><literal><function>pg_stat_get_autoanalyze_count</function>(<type>oid</type>)</literal></entry>
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<entry><type>bigint</type></entry>
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<entry>
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The number of times this table has been analyzed by the autovacuum daemon
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</entry>
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</row>
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<row>
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<entry><literal><function>pg_stat_get_xact_numscans</function>(<type>oid</type>)</literal></entry>
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<entry><type>bigint</type></entry>
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@ -3,7 +3,7 @@
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*
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* Copyright (c) 1996-2010, PostgreSQL Global Development Group
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*
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* $PostgreSQL: pgsql/src/backend/catalog/system_views.sql,v 1.67 2010/08/08 16:27:03 tgl Exp $
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* $PostgreSQL: pgsql/src/backend/catalog/system_views.sql,v 1.68 2010/08/21 10:59:17 mha Exp $
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*/
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CREATE VIEW pg_roles AS
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@ -201,7 +201,11 @@ CREATE VIEW pg_stat_all_tables AS
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pg_stat_get_last_vacuum_time(C.oid) as last_vacuum,
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pg_stat_get_last_autovacuum_time(C.oid) as last_autovacuum,
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pg_stat_get_last_analyze_time(C.oid) as last_analyze,
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pg_stat_get_last_autoanalyze_time(C.oid) as last_autoanalyze
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pg_stat_get_last_autoanalyze_time(C.oid) as last_autoanalyze,
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pg_stat_get_vacuum_count(C.oid) AS vacuum_count,
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pg_stat_get_autovacuum_count(C.oid) AS autovacuum_count,
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pg_stat_get_analyze_count(C.oid) AS analyze_count,
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pg_stat_get_autoanalyze_count(C.oid) AS autoanalyze_count
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FROM pg_class C LEFT JOIN
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pg_index I ON C.oid = I.indrelid
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LEFT JOIN pg_namespace N ON (N.oid = C.relnamespace)
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@ -13,7 +13,7 @@
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*
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* Copyright (c) 2001-2010, PostgreSQL Global Development Group
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*
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* $PostgreSQL: pgsql/src/backend/postmaster/pgstat.c,v 1.205 2010/08/08 16:27:03 tgl Exp $
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* $PostgreSQL: pgsql/src/backend/postmaster/pgstat.c,v 1.206 2010/08/21 10:59:17 mha Exp $
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* ----------
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*/
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#include "postgres.h"
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@ -3192,6 +3192,10 @@ pgstat_get_tab_entry(PgStat_StatDBEntry *dbentry, Oid tableoid, bool create)
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result->autovac_vacuum_timestamp = 0;
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result->analyze_timestamp = 0;
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result->autovac_analyze_timestamp = 0;
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result->vacuum_count = 0;
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result->autovac_vacuum_count = 0;
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result->analyze_count = 0;
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result->autovac_analyze_count = 0;
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}
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return result;
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@ -4114,9 +4118,15 @@ pgstat_recv_vacuum(PgStat_MsgVacuum *msg, int len)
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tabentry->n_dead_tuples = 0;
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if (msg->m_autovacuum)
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{
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tabentry->autovac_vacuum_timestamp = msg->m_vacuumtime;
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tabentry->autovac_vacuum_count++;
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}
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else
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{
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tabentry->vacuum_timestamp = msg->m_vacuumtime;
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tabentry->vacuum_count++;
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}
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}
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/* ----------
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@ -4151,9 +4161,15 @@ pgstat_recv_analyze(PgStat_MsgAnalyze *msg, int len)
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tabentry->changes_since_analyze = 0;
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if (msg->m_autovacuum)
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{
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tabentry->autovac_analyze_timestamp = msg->m_analyzetime;
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tabentry->autovac_analyze_count++;
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}
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else
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{
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tabentry->analyze_timestamp = msg->m_analyzetime;
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tabentry->analyze_count++;
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}
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}
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@ -8,7 +8,7 @@
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*
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*
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* IDENTIFICATION
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* $PostgreSQL: pgsql/src/backend/utils/adt/pgstatfuncs.c,v 1.61 2010/08/08 16:27:04 tgl Exp $
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* $PostgreSQL: pgsql/src/backend/utils/adt/pgstatfuncs.c,v 1.62 2010/08/21 10:59:17 mha Exp $
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*
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*-------------------------------------------------------------------------
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*/
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@ -38,6 +38,10 @@ extern Datum pg_stat_get_last_vacuum_time(PG_FUNCTION_ARGS);
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extern Datum pg_stat_get_last_autovacuum_time(PG_FUNCTION_ARGS);
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extern Datum pg_stat_get_last_analyze_time(PG_FUNCTION_ARGS);
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extern Datum pg_stat_get_last_autoanalyze_time(PG_FUNCTION_ARGS);
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extern Datum pg_stat_get_vacuum_count(PG_FUNCTION_ARGS);
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extern Datum pg_stat_get_autovacuum_count(PG_FUNCTION_ARGS);
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extern Datum pg_stat_get_analyze_count(PG_FUNCTION_ARGS);
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extern Datum pg_stat_get_autoanalyze_count(PG_FUNCTION_ARGS);
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extern Datum pg_stat_get_function_calls(PG_FUNCTION_ARGS);
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extern Datum pg_stat_get_function_time(PG_FUNCTION_ARGS);
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@ -346,6 +350,66 @@ pg_stat_get_last_autoanalyze_time(PG_FUNCTION_ARGS)
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PG_RETURN_TIMESTAMPTZ(result);
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}
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Datum
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pg_stat_get_vacuum_count(PG_FUNCTION_ARGS)
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{
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Oid relid = PG_GETARG_OID(0);
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int64 result;
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PgStat_StatTabEntry *tabentry;
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if ((tabentry = pgstat_fetch_stat_tabentry(relid)) == NULL)
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result = 0;
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else
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result = (int64) (tabentry->vacuum_count);
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PG_RETURN_INT64(result);
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}
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Datum
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pg_stat_get_autovacuum_count(PG_FUNCTION_ARGS)
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{
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Oid relid = PG_GETARG_OID(0);
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int64 result;
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PgStat_StatTabEntry *tabentry;
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if ((tabentry = pgstat_fetch_stat_tabentry(relid)) == NULL)
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result = 0;
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else
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result = (int64) (tabentry->autovac_vacuum_count);
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PG_RETURN_INT64(result);
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}
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Datum
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pg_stat_get_analyze_count(PG_FUNCTION_ARGS)
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{
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Oid relid = PG_GETARG_OID(0);
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int64 result;
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PgStat_StatTabEntry *tabentry;
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if ((tabentry = pgstat_fetch_stat_tabentry(relid)) == NULL)
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result = 0;
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else
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result = (int64) (tabentry->analyze_count);
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PG_RETURN_INT64(result);
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}
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Datum
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pg_stat_get_autoanalyze_count(PG_FUNCTION_ARGS)
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{
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Oid relid = PG_GETARG_OID(0);
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int64 result;
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PgStat_StatTabEntry *tabentry;
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if ((tabentry = pgstat_fetch_stat_tabentry(relid)) == NULL)
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result = 0;
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else
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result = (int64) (tabentry->autovac_analyze_count);
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PG_RETURN_INT64(result);
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}
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Datum
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pg_stat_get_function_calls(PG_FUNCTION_ARGS)
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{
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@ -37,7 +37,7 @@
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* Portions Copyright (c) 1996-2010, PostgreSQL Global Development Group
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* Portions Copyright (c) 1994, Regents of the University of California
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*
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* $PostgreSQL: pgsql/src/include/catalog/catversion.h,v 1.595 2010/08/13 18:36:24 tgl Exp $
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* $PostgreSQL: pgsql/src/include/catalog/catversion.h,v 1.596 2010/08/21 10:59:17 mha Exp $
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*
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*-------------------------------------------------------------------------
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*/
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@ -53,6 +53,6 @@
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*/
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/* yyyymmddN */
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#define CATALOG_VERSION_NO 201008131
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#define CATALOG_VERSION_NO 201008211
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#endif
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@ -7,7 +7,7 @@
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* Portions Copyright (c) 1996-2010, PostgreSQL Global Development Group
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* Portions Copyright (c) 1994, Regents of the University of California
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*
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* $PostgreSQL: pgsql/src/include/catalog/pg_proc.h,v 1.579 2010/08/13 18:36:25 tgl Exp $
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* $PostgreSQL: pgsql/src/include/catalog/pg_proc.h,v 1.580 2010/08/21 10:59:17 mha Exp $
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*
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* NOTES
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* The script catalog/genbki.pl reads this file and generates .bki
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@ -3029,6 +3029,14 @@ DATA(insert OID = 2783 ( pg_stat_get_last_analyze_time PGNSP PGUID 12 1 0 0 f f
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DESCR("statistics: last manual analyze time for a table");
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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_ ));
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DESCR("statistics: last auto analyze time for a table");
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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_ ));
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DESCR("statistics: number of manual vacuums for a table");
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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_ ));
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DESCR("statistics: number of auto vacuums for a table");
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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_ ));
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DESCR("statistics: number of manual analyzes for a table");
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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_ ));
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DESCR("statistics: number of auto analyzes for a table");
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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_ ));
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DESCR("statistics: currently active backend IDs");
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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_ ));
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@ -5,7 +5,7 @@
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*
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* Copyright (c) 2001-2010, PostgreSQL Global Development Group
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*
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* $PostgreSQL: pgsql/src/include/pgstat.h,v 1.90 2010/08/08 16:27:06 tgl Exp $
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* $PostgreSQL: pgsql/src/include/pgstat.h,v 1.91 2010/08/21 10:59:17 mha Exp $
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* ----------
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*/
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#ifndef PGSTAT_H
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@ -525,9 +525,13 @@ typedef struct PgStat_StatTabEntry
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PgStat_Counter blocks_hit;
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TimestampTz vacuum_timestamp; /* user initiated vacuum */
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PgStat_Counter vacuum_count;
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TimestampTz autovac_vacuum_timestamp; /* autovacuum initiated */
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PgStat_Counter autovac_vacuum_count;
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TimestampTz analyze_timestamp; /* user initiated */
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PgStat_Counter analyze_count;
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TimestampTz autovac_analyze_timestamp; /* autovacuum initiated */
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PgStat_Counter autovac_analyze_count;
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} PgStat_StatTabEntry;
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