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| author | Tom Lane <tgl@sss.pgh.pa.us> | 2003-04-26 02:57:14 +0000 |
|---|---|---|
| committer | Tom Lane <tgl@sss.pgh.pa.us> | 2003-04-26 02:57:14 +0000 |
| commit | 2b1e36c7c0f294c70595bddaae0caecbcf8b50c6 (patch) | |
| tree | f0bc9931dbc6af443f6bd76e40a882d9e2688e48 /src/include | |
| parent | 9fdb1de3ba5805e676f58860c423a50a765458e2 (diff) | |
| download | postgresql-2b1e36c7c0f294c70595bddaae0caecbcf8b50c6.tar.gz postgresql-2b1e36c7c0f294c70595bddaae0caecbcf8b50c6.zip | |
Tweak stats collector start logic so that we will not try to spawn a
new stats collector oftener than once a minute. Per gripe from Erik Walthinsen
4/25/03.
Diffstat (limited to 'src/include')
| -rw-r--r-- | src/include/pgstat.h | 32 |
1 files changed, 21 insertions, 11 deletions
diff --git a/src/include/pgstat.h b/src/include/pgstat.h index 533c2e44f56..e85f6ec3e91 100644 --- a/src/include/pgstat.h +++ b/src/include/pgstat.h @@ -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; @@ -333,12 +337,18 @@ 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); |