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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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85
src/include/pgstat.h
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@ -5,7 +5,7 @@
*
* Copyright (c) 2001-2005, PostgreSQL Global Development Group
*
* $PostgreSQL: pgsql/src/include/pgstat.h,v 1.32 2005/06/29 22:51:57 tgl Exp $
* $PostgreSQL: pgsql/src/include/pgstat.h,v 1.33 2005/07/14 05:13:43 tgl Exp $
* ----------
*/
#ifndef PGSTAT_H
@ -20,14 +20,20 @@
* The types of backend/postmaster -> collector messages
* ----------
*/
#define PGSTAT_MTYPE_DUMMY 0
#define PGSTAT_MTYPE_BESTART 1
#define PGSTAT_MTYPE_BETERM 2
#define PGSTAT_MTYPE_ACTIVITY 3
#define PGSTAT_MTYPE_TABSTAT 4
#define PGSTAT_MTYPE_TABPURGE 5
#define PGSTAT_MTYPE_DROPDB 6
#define PGSTAT_MTYPE_RESETCOUNTER 7
typedef enum StatMsgType
{
PGSTAT_MTYPE_DUMMY,
PGSTAT_MTYPE_BESTART,
PGSTAT_MTYPE_BETERM,
PGSTAT_MTYPE_ACTIVITY,
PGSTAT_MTYPE_TABSTAT,
PGSTAT_MTYPE_TABPURGE,
PGSTAT_MTYPE_DROPDB,
PGSTAT_MTYPE_RESETCOUNTER,
PGSTAT_MTYPE_AUTOVAC_START,
PGSTAT_MTYPE_VACUUM,
PGSTAT_MTYPE_ANALYZE
} StatMsgType;
/* ----------
* The data type used for counters.
@ -48,7 +54,7 @@ typedef int64 PgStat_Counter;
*/
typedef struct PgStat_MsgHdr
{
int m_type;
StatMsgType m_type;
int m_size;
int m_backendid;
int m_procpid;
@ -114,6 +120,47 @@ typedef struct PgStat_MsgBeterm
PgStat_MsgHdr m_hdr;
} PgStat_MsgBeterm;
/* ----------
* PgStat_MsgAutovacStart Sent by the autovacuum daemon to signal
* that a database is going to be processed
* ----------
*/
typedef struct PgStat_MsgAutovacStart
{
PgStat_MsgHdr m_hdr;
Oid m_databaseid;
TimestampTz m_start_time;
} PgStat_MsgAutovacStart;
/* ----------
* PgStat_MsgVacuum Sent by the backend or autovacuum daemon
* after VACUUM or VACUUM ANALYZE
* ----------
*/
typedef struct PgStat_MsgVacuum
{
PgStat_MsgHdr m_hdr;
Oid m_databaseid;
Oid m_tableoid;
bool m_analyze;
PgStat_Counter m_tuples;
} PgStat_MsgVacuum;
/* ----------
* PgStat_MsgAnalyze Sent by the backend or autovacuum daemon
* after ANALYZE
* ----------
*/
typedef struct PgStat_MsgAnalyze
{
PgStat_MsgHdr m_hdr;
Oid m_databaseid;
Oid m_tableoid;
PgStat_Counter m_live_tuples;
PgStat_Counter m_dead_tuples;
} PgStat_MsgAnalyze;
/* ----------
* PgStat_MsgActivity Sent by the backends when they start
* to parse a query.
@ -200,14 +247,22 @@ typedef union PgStat_Msg
PgStat_MsgTabpurge msg_tabpurge;
PgStat_MsgDropdb msg_dropdb;
PgStat_MsgResetcounter msg_resetcounter;
PgStat_MsgAutovacStart msg_autovacuum;
PgStat_MsgVacuum msg_vacuum;
PgStat_MsgAnalyze msg_analyze;
} PgStat_Msg;
/* ------------------------------------------------------------
* Statistic collector data structures follow
*
* PGSTAT_FILE_FORMAT_ID should be changed whenever any of these
* data structures change.
* ------------------------------------------------------------
*/
#define PGSTAT_FILE_FORMAT_ID 0x01A5BC93
/* ----------
* PgStat_StatDBEntry The collectors data per database
* ----------
@ -222,6 +277,7 @@ typedef struct PgStat_StatDBEntry
PgStat_Counter n_blocks_fetched;
PgStat_Counter n_blocks_hit;
int destroy;
TimestampTz last_autovac_time;
} PgStat_StatDBEntry;
@ -282,6 +338,10 @@ typedef struct PgStat_StatTabEntry
PgStat_Counter tuples_updated;
PgStat_Counter tuples_deleted;
PgStat_Counter n_live_tuples;
PgStat_Counter n_dead_tuples;
PgStat_Counter last_anl_tuples;
PgStat_Counter blocks_fetched;
PgStat_Counter blocks_hit;
@ -323,6 +383,11 @@ extern void pgstat_bestart(void);
extern void pgstat_ping(void);
extern void pgstat_report_activity(const char *what);
extern void pgstat_report_tabstat(void);
extern void pgstat_report_autovac(void);
extern void pgstat_report_vacuum(Oid tableoid, bool analyze,
PgStat_Counter tuples);
extern void pgstat_report_analyze(Oid tableoid, PgStat_Counter livetuples,
PgStat_Counter deadtuples);
extern int pgstat_vacuum_tabstat(void);
extern void pgstat_reset_counters(void);