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Add log_min_duration_statement.

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Christopher Kings-Lynne
This commit is contained in:
Bruce Momjian
2003-06-11 18:01:14 +00:00
parent 8bfe93c5c8
commit b952d61c54
6 changed files with 66 additions and 14 deletions
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41
src/backend/tcop/postgres.c
View File

@@ -8,7 +8,7 @@
*
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/tcop/postgres.c,v 1.346 2003/05/27 17:49:46 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/tcop/postgres.c,v 1.347 2003/06/11 18:01:14 momjian Exp $
*
* NOTES
* this is the "main" module of the postgres backend and
@@ -663,6 +663,7 @@ exec_simple_query(const char *query_string)
struct timeval start_t,
stop_t;
bool save_log_duration = log_duration;
int save_log_min_duration_statement = log_min_duration_statement;
bool save_log_statement_stats = log_statement_stats;
/*
@@ -673,11 +674,12 @@ exec_simple_query(const char *query_string)
pgstat_report_activity(query_string);
/*
* We use save_log_duration so "SET log_duration = true" doesn't
* report incorrect time because gettimeofday() wasn't called.
* We use save_log_* so "SET log_duration = true" and
* "SET log_min_duration_statement = true" don't report incorrect
* time because gettimeofday() wasn't called.
* Similarly, log_statement_stats has to be captured once.
*/
if (save_log_duration)
if (save_log_duration || save_log_min_duration_statement > 0)
gettimeofday(&start_t, NULL);
if (save_log_statement_stats)
@@ -915,19 +917,38 @@ exec_simple_query(const char *query_string)
QueryContext = NULL;
/*
* Finish up monitoring.
* Combine processing here as we need to calculate the query
* duration in both instances.
*/
if (save_log_duration)
if (save_log_duration || save_log_min_duration_statement > 0)
{
long usecs;
gettimeofday(&stop_t, NULL);
if (stop_t.tv_usec < start_t.tv_usec)
{
stop_t.tv_sec--;
stop_t.tv_usec += 1000000;
}
elog(LOG, "duration: %ld.%06ld sec",
(long) (stop_t.tv_sec - start_t.tv_sec),
(long) (stop_t.tv_usec - start_t.tv_usec));
usecs = (long) (stop_t.tv_sec - start_t.tv_sec) * 1000000 + (long) (stop_t.tv_usec - start_t.tv_usec);
/*
* Output a duration_query to the log if the query has exceeded the
* min duration.
*/
if (usecs >= save_log_min_duration_statement * 1000)
elog(LOG, "duration_statement: %ld.%06ld %s",
(long) (stop_t.tv_sec - start_t.tv_sec),
(long) (stop_t.tv_usec - start_t.tv_usec),
query_string);
/*
* If the user is requesting logging of all durations, then log
* that as well.
*/
if (save_log_duration)
elog(LOG, "duration: %ld.%06ld sec",
(long) (stop_t.tv_sec - start_t.tv_sec),
(long) (stop_t.tv_usec - start_t.tv_usec));
}
if (save_log_statement_stats)
@@ -2526,7 +2547,7 @@ PostgresMain(int argc, char *argv[], const char *username)
if (!IsUnderPostmaster)
{
puts("\nPOSTGRES backend interactive interface ");
puts("$Revision: 1.346 $ $Date: 2003/05/27 17:49:46 $\n");
puts("$Revision: 1.347 $ $Date: 2003/06/11 18:01:14 $\n");
}
/*

9
src/backend/utils/misc/guc.c
View File

@@ -10,7 +10,7 @@
* Written by Peter Eisentraut <peter_e@gmx.net>.
*
* IDENTIFICATION
* $Header: /cvsroot/pgsql/src/backend/utils/misc/guc.c,v 1.128 2003/06/11 05:04:51 momjian Exp $
* $Header: /cvsroot/pgsql/src/backend/utils/misc/guc.c,v 1.129 2003/06/11 18:01:14 momjian Exp $
*
*--------------------------------------------------------------------
*/
@@ -55,6 +55,8 @@
#include "utils/pg_locale.h"
#include "pgstat.h"
int log_min_duration_statement = 0;
#ifndef PG_KRB_SRVTAB
#define PG_KRB_SRVTAB ""
@@ -735,6 +737,11 @@ static struct config_int
0, -15, 2, NULL, NULL
},
{
{"log_min_duration_statement", PGC_USERSET}, &log_min_duration_statement,
0, 0, INT_MAX / 1000, NULL, NULL
},
{
{NULL, 0}, NULL, 0, 0, 0, NULL, NULL
}

4
src/backend/utils/misc/postgresql.conf.sample
View File

@@ -140,6 +140,10 @@
# debug5, debug4, debug3, debug2, debug1,
# info, notice, warning, error, panic(off)
#log_min_duration_statement = 0 # Log all statements whose
# execution time exceeds the value, in
# milliseconds. Zero disables.
#debug_print_parse = false
#debug_print_rewritten = false
#debug_print_plan = false