database/postgres
1
0
Fork 0
mirror of https://github.com/postgres/postgres.git synced 2025-07-12 21:01:52 +03:00
Code Activity

Tweak stats collector start logic so that we will not try to spawn a

Browse Source 
new stats collector oftener than once a minute.  Per gripe from Erik Walthinsen
4/25/03.
This commit is contained in:
Tom Lane
2003-04-26 02:57:14 +00:00
parent 9fdb1de3ba
commit 2b1e36c7c0
3 changed files with 89 additions and 54 deletions
Download Patch File Download Diff File Expand all files Collapse all files

32
src/include/pgstat.h
View File

@ -3,15 +3,18 @@
*
* Definitions for the PostgreSQL statistics collector daemon.
*
* Copyright (c) 2001, PostgreSQL Global Development Group
* Copyright (c) 2001-2003, PostgreSQL Global Development Group
*
* $Id: pgstat.h,v 1.13 2003/03/20 03:34:56 momjian Exp $
* $Id: pgstat.h,v 1.14 2003/04/26 02:57:14 tgl Exp $
* ----------
*/
#ifndef PGSTAT_H
#define PGSTAT_H
#include "utils/hsearch.h"
#include "utils/nabstime.h"
#include "utils/rel.h"
/* ----------
* Paths for the statistics files. The %s is replaced with the
@ -26,16 +29,17 @@
* ----------
*/
#define PGSTAT_STAT_INTERVAL 500 /* How often to write the status */
/* file, in milliseconds. */
/* file; in milliseconds. */
#define PGSTAT_DESTROY_DELAY 10000 /* How long to keep destroyed */
/* objects known to give delayed */
/* UDP packets time to arrive, */
/* objects known, to give delayed */
/* UDP packets time to arrive; */
/* in milliseconds. */
#define PGSTAT_DESTROY_COUNT (PGSTAT_DESTROY_DELAY \
/ PGSTAT_STAT_INTERVAL)
#define PGSTAT_DESTROY_COUNT (PGSTAT_DESTROY_DELAY / PGSTAT_STAT_INTERVAL)
#define PGSTAT_RESTART_INTERVAL 60 /* How often to attempt to restart */
/* a failed statistics collector; in seconds. */
/* ----------
* How much of the actual query string to send to the collector.
@ -323,7 +327,7 @@ typedef union PgStat_Msg
/* ----------
* Global variables
* GUC parameters
* ----------
*/
extern bool pgstat_collect_startcollector;
@ -332,13 +336,19 @@ extern bool pgstat_collect_querystring;
extern bool pgstat_collect_tuplelevel;
extern bool pgstat_collect_blocklevel;
/* ----------
* Other global variables
* ----------
*/
extern bool pgstat_is_running;
/* ----------
* Functions called from postmaster
* ----------
*/
extern int pgstat_init(void);
extern int pgstat_start(void);
extern int pgstat_ispgstat(int pid);
extern void pgstat_init(void);
extern void pgstat_start(void);
extern bool pgstat_ispgstat(int pid);
extern void pgstat_close_sockets(void);
extern void pgstat_beterm(int pid);