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Commitc47fc6d

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committed
Add options to pg_autovacuum to support setting the cost-based-vacuum
parameters differently from their default values. Matthew T. O'Connor
1 parent18b5835 commitc47fc6d

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3 files changed

+185
-62
lines changed

3 files changed

+185
-62
lines changed

‎contrib/pg_autovacuum/README.pg_autovacuum‎

Lines changed: 11 additions & 0 deletions
Original file line numberDiff line numberDiff line change
@@ -133,6 +133,17 @@ pg_autovacuum has the following optional arguments:
133133
-p port: port used for connection.
134134
-h help: list of command line options.
135135

136+
The following 5 autovacuum command line options correspond to the various
137+
cost-based vacuum settings. If not given, then the cluster default values
138+
will be used.
139+
140+
-cvacuum_cost_delay
141+
-Cvacuum_cost_page_hit
142+
-mvacuum_cost_page_miss
143+
-nvacuum_cost_page_dirty
144+
-Nvacuum_cost_limit
145+
146+
136147
Numerous arguments have default values defined in pg_autovacuum.h. At
137148
the time of writing they are:
138149

‎contrib/pg_autovacuum/pg_autovacuum.c‎

Lines changed: 163 additions & 61 deletions
Original file line numberDiff line numberDiff line change
@@ -4,7 +4,7 @@
44
* Revisions by Christopher B. Browne, Liberty RMS
55
* Win32 Service code added by Dave Page
66
*
7-
* $PostgreSQL: pgsql/contrib/pg_autovacuum/pg_autovacuum.c,v 1.23 2004/10/25 02:14:59 tgl Exp $
7+
* $PostgreSQL: pgsql/contrib/pg_autovacuum/pg_autovacuum.c,v 1.24 2004/11/17 16:54:15 tgl Exp $
88
*/
99

1010
#include"postgres_fe.h"
@@ -530,7 +530,7 @@ print_table_info(tbl_info * tbl)
530530
{
531531
sprintf(logbuffer," table name: %s.%s",tbl->dbi->dbname,tbl->table_name);
532532
log_entry(logbuffer,LVL_INFO);
533-
sprintf(logbuffer," relid: %u; relisshared: %i",tbl->relid,tbl->relisshared);
533+
sprintf(logbuffer," relid: %u; relisshared: %d",tbl->relid,tbl->relisshared);
534534
log_entry(logbuffer,LVL_INFO);
535535
sprintf(logbuffer," reltuples: %f; relpages: %u",tbl->reltuples,tbl->relpages);
536536
log_entry(logbuffer,LVL_INFO);
@@ -905,6 +905,7 @@ db_connect(db_info * dbi)
905905
PQfinish(db_conn);
906906
db_conn=NULL;
907907
}
908+
908909
returndb_conn;
909910
}/* end of db_connect() */
910911

@@ -973,6 +974,75 @@ send_query(const char *query, db_info * dbi)
973974
returnres;
974975
}/* End of send_query() */
975976

977+
/*
978+
* Perform either a vacuum or a vacuum analyze
979+
*/
980+
staticvoid
981+
perform_maintenance_command(db_info*dbi,tbl_info*tbl,intoperation)
982+
{
983+
charbuf[256];
984+
985+
/*
986+
* Set the vacuum_cost variables if supplied on command line
987+
*/
988+
if (args->av_vacuum_cost_delay!=-1)
989+
{
990+
snprintf(buf,sizeof(buf),"set vacuum_cost_delay = %d",
991+
args->av_vacuum_cost_delay);
992+
send_query(buf,dbi);
993+
}
994+
if (args->av_vacuum_cost_page_hit!=-1)
995+
{
996+
snprintf(buf,sizeof(buf),"set vacuum_cost_page_hit = %d",
997+
args->av_vacuum_cost_page_hit);
998+
send_query(buf,dbi);
999+
}
1000+
if (args->av_vacuum_cost_page_miss!=-1)
1001+
{
1002+
snprintf(buf,sizeof(buf),"set vacuum_cost_page_miss = %d",
1003+
args->av_vacuum_cost_page_miss);
1004+
send_query(buf,dbi);
1005+
}
1006+
if (args->av_vacuum_cost_page_dirty!=-1)
1007+
{
1008+
snprintf(buf,sizeof(buf),"set vacuum_cost_page_dirty = %d",
1009+
args->av_vacuum_cost_page_dirty);
1010+
send_query(buf,dbi);
1011+
}
1012+
if (args->av_vacuum_cost_limit!=-1)
1013+
{
1014+
snprintf(buf,sizeof(buf),"set vacuum_cost_limit = %d",
1015+
args->av_vacuum_cost_limit);
1016+
send_query(buf,dbi);
1017+
}
1018+
1019+
/*
1020+
* if ((relisshared = t and database != template1) or
1021+
* if operation = ANALYZE_ONLY)
1022+
* then only do an analyze
1023+
*/
1024+
if ((tbl->relisshared>0&&strcmp("template1",dbi->dbname)!=0)||
1025+
(operation==ANALYZE_ONLY))
1026+
snprintf(buf,sizeof(buf),"ANALYZE %s",tbl->table_name);
1027+
elseif (operation==VACUUM_ANALYZE)
1028+
snprintf(buf,sizeof(buf),"VACUUM ANALYZE %s",tbl->table_name);
1029+
else
1030+
return;
1031+
1032+
if (args->debug >=1)
1033+
{
1034+
sprintf(logbuffer,"Performing: %s",buf);
1035+
log_entry(logbuffer,LVL_DEBUG);
1036+
fflush(LOGOUTPUT);
1037+
}
1038+
1039+
send_query(buf,dbi);
1040+
1041+
update_table_thresholds(dbi,tbl,operation);
1042+
1043+
if (args->debug >=2)
1044+
print_table_info(tbl);
1045+
}
9761046

9771047
staticvoid
9781048
free_cmd_args(void)
@@ -1014,14 +1084,23 @@ get_cmd_args(int argc, char *argv[])
10141084
args->logfile=0;
10151085
args->port=0;
10161086

1087+
/*
1088+
* Cost-Based Vacuum Delay Settings for pg_autovacuum
1089+
*/
1090+
args->av_vacuum_cost_delay=-1;
1091+
args->av_vacuum_cost_page_hit=-1;
1092+
args->av_vacuum_cost_page_miss=-1;
1093+
args->av_vacuum_cost_page_dirty=-1;
1094+
args->av_vacuum_cost_limit=-1;
1095+
10171096
/*
10181097
* Fixme: Should add some sanity checking such as positive integer
10191098
* values etc
10201099
*/
10211100
#ifndefWIN32
1022-
while ((c=getopt(argc,argv,"s:S:v:V:a:A:d:U:P:H:L:p:hD"))!=-1)
1101+
while ((c=getopt(argc,argv,"s:S:v:V:a:A:d:U:P:H:L:p:hD:c:C:m:n:N:"))!=-1)
10231102
#else
1024-
while ((c=getopt(argc,argv,"s:S:v:V:a:A:d:U:P:H:L:p:hIRN:W:"))!=-1)
1103+
while ((c=getopt(argc,argv,"s:S:v:V:a:A:d:U:P:H:L:p:hIRN:W:c:C:m:n:N:"))!=-1)
10251104
#endif
10261105
{
10271106
switch (c)
@@ -1044,6 +1123,21 @@ get_cmd_args(int argc, char *argv[])
10441123
case'A':
10451124
args->analyze_scaling_factor=atof(optarg);
10461125
break;
1126+
case'c':
1127+
args->av_vacuum_cost_delay=atoi(optarg);
1128+
break;
1129+
case'C':
1130+
args->av_vacuum_cost_page_hit=atoi(optarg);
1131+
break;
1132+
case'm':
1133+
args->av_vacuum_cost_page_miss=atoi(optarg);
1134+
break;
1135+
case'n':
1136+
args->av_vacuum_cost_page_dirty=atoi(optarg);
1137+
break;
1138+
case'N':
1139+
args->av_vacuum_cost_limit=atoi(optarg);
1140+
break;
10471141
#ifndefWIN32
10481142
case'D':
10491143
args->daemonize++;
@@ -1124,24 +1218,30 @@ usage(void)
11241218
fprintf(stderr," [-W] Password to run service with (only useful when installing as a Windows service)\n");
11251219
#endif
11261220
i=AUTOVACUUM_DEBUG;
1127-
fprintf(stderr," [-d] debug (debug level=0,1,2,3; default=%i)\n",i);
1221+
fprintf(stderr," [-d] debug (debug level=0,1,2,3; default=%d)\n",i);
11281222

11291223
i=SLEEPBASEVALUE;
1130-
fprintf(stderr," [-s] sleep base value (default=%i)\n",i);
1224+
fprintf(stderr," [-s] sleep base value (default=%d)\n",i);
11311225
f=SLEEPSCALINGFACTOR;
11321226
fprintf(stderr," [-S] sleep scaling factor (default=%f)\n",f);
11331227

11341228
i=VACBASETHRESHOLD;
1135-
fprintf(stderr," [-v] vacuum base threshold (default=%i)\n",i);
1229+
fprintf(stderr," [-v] vacuum base threshold (default=%d)\n",i);
11361230
f=VACSCALINGFACTOR;
11371231
fprintf(stderr," [-V] vacuum scaling factor (default=%f)\n",f);
11381232
i=i /2;
1139-
fprintf(stderr," [-a] analyze base threshold (default=%i)\n",i);
1233+
fprintf(stderr," [-a] analyze base threshold (default=%d)\n",i);
11401234
f=f /2;
11411235
fprintf(stderr," [-A] analyze scaling factor (default=%f)\n",f);
11421236

11431237
fprintf(stderr," [-L] logfile (default=none)\n");
11441238

1239+
fprintf(stderr," [-c] vacuum_cost_delay (default=none)\n");
1240+
fprintf(stderr," [-C] vacuum_cost_page_hit (default=none)\n");
1241+
fprintf(stderr," [-m] vacuum_cost_page_miss (default=none)\n");
1242+
fprintf(stderr," [-n] vacuum_cost_page_dirty (default=none)\n");
1243+
fprintf(stderr," [-N] vacuum_cost_limit (default=none)\n");
1244+
11451245
fprintf(stderr," [-U] username (libpq default)\n");
11461246
fprintf(stderr," [-P] password (libpq default)\n");
11471247
fprintf(stderr," [-H] host (libpq default)\n");
@@ -1166,32 +1266,59 @@ print_cmd_args(void)
11661266
sprintf(logbuffer," args->logfile=%s", (args->logfile) ?args->logfile :"(null)");
11671267
log_entry(logbuffer,LVL_INFO);
11681268
#ifndefWIN32
1169-
sprintf(logbuffer," args->daemonize=%i",args->daemonize);
1269+
sprintf(logbuffer," args->daemonize=%d",args->daemonize);
11701270
log_entry(logbuffer,LVL_INFO);
11711271
#else
1172-
sprintf(logbuffer," args->install_as_service=%i",args->install_as_service);
1272+
sprintf(logbuffer," args->install_as_service=%d",args->install_as_service);
11731273
log_entry(logbuffer,LVL_INFO);
1174-
sprintf(logbuffer," args->remove_as_service=%i",args->remove_as_service);
1274+
sprintf(logbuffer," args->remove_as_service=%d",args->remove_as_service);
11751275
log_entry(logbuffer,LVL_INFO);
11761276
sprintf(logbuffer," args->service_user=%s", (args->service_user) ?args->service_user :"(null)");
11771277
log_entry(logbuffer,LVL_INFO);
11781278
sprintf(logbuffer," args->service_password=%s", (args->service_password) ?args->service_password :"(null)");
11791279
log_entry(logbuffer,LVL_INFO);
11801280
#endif
11811281

1182-
sprintf(logbuffer," args->sleep_base_value=%i",args->sleep_base_value);
1282+
sprintf(logbuffer," args->sleep_base_value=%d",args->sleep_base_value);
11831283
log_entry(logbuffer,LVL_INFO);
11841284
sprintf(logbuffer," args->sleep_scaling_factor=%f",args->sleep_scaling_factor);
11851285
log_entry(logbuffer,LVL_INFO);
1186-
sprintf(logbuffer," args->vacuum_base_threshold=%i",args->vacuum_base_threshold);
1286+
sprintf(logbuffer," args->vacuum_base_threshold=%d",args->vacuum_base_threshold);
11871287
log_entry(logbuffer,LVL_INFO);
11881288
sprintf(logbuffer," args->vacuum_scaling_factor=%f",args->vacuum_scaling_factor);
11891289
log_entry(logbuffer,LVL_INFO);
1190-
sprintf(logbuffer," args->analyze_base_threshold=%i",args->analyze_base_threshold);
1290+
sprintf(logbuffer," args->analyze_base_threshold=%d",args->analyze_base_threshold);
11911291
log_entry(logbuffer,LVL_INFO);
11921292
sprintf(logbuffer," args->analyze_scaling_factor=%f",args->analyze_scaling_factor);
11931293
log_entry(logbuffer,LVL_INFO);
1194-
sprintf(logbuffer," args->debug=%i",args->debug);
1294+
1295+
if (args->av_vacuum_cost_delay!=-1)
1296+
sprintf(logbuffer," args->av_vacuum_cost_delay=%d",args->av_vacuum_cost_delay);
1297+
else
1298+
sprintf(logbuffer," args->av_vacuum_cost_delay=(default)");
1299+
log_entry(logbuffer,LVL_INFO);
1300+
if (args->av_vacuum_cost_page_hit!=-1)
1301+
sprintf(logbuffer," args->av_vacuum_cost_page_hit=%d",args->av_vacuum_cost_page_hit);
1302+
else
1303+
sprintf(logbuffer," args->av_vacuum_cost_page_hit=(default)");
1304+
log_entry(logbuffer,LVL_INFO);
1305+
if (args->av_vacuum_cost_page_miss!=-1)
1306+
sprintf(logbuffer," args->av_vacuum_cost_page_miss=%d",args->av_vacuum_cost_page_miss);
1307+
else
1308+
sprintf(logbuffer," args->av_vacuum_cost_page_miss=(default)");
1309+
log_entry(logbuffer,LVL_INFO);
1310+
if (args->av_vacuum_cost_page_dirty!=-1)
1311+
sprintf(logbuffer," args->av_vacuum_cost_page_dirty=%d",args->av_vacuum_cost_page_dirty);
1312+
else
1313+
sprintf(logbuffer," args->av_vacuum_cost_page_dirty=(default)");
1314+
log_entry(logbuffer,LVL_INFO);
1315+
if (args->av_vacuum_cost_limit!=-1)
1316+
sprintf(logbuffer," args->av_vacuum_cost_limit=%d",args->av_vacuum_cost_limit);
1317+
else
1318+
sprintf(logbuffer," args->av_vacuum_cost_limit=(default)");
1319+
log_entry(logbuffer,LVL_INFO);
1320+
1321+
sprintf(logbuffer," args->debug=%d",args->debug);
11951322
log_entry(logbuffer,LVL_INFO);
11961323

11971324
fflush(LOGOUTPUT);
@@ -1285,20 +1412,30 @@ InstallService()
12851412
if (args->logfile)
12861413
sprintf(szCommand,"%s -L %s",szCommand,args->logfile);
12871414
if (args->sleep_base_value!= (int)SLEEPBASEVALUE)
1288-
sprintf(szCommand,"%s -s %i",szCommand,args->sleep_base_value);
1415+
sprintf(szCommand,"%s -s %d",szCommand,args->sleep_base_value);
12891416
if (args->sleep_scaling_factor!= (float)SLEEPSCALINGFACTOR)
12901417
sprintf(szCommand,"%s -S %f",szCommand,args->sleep_scaling_factor);
12911418
if (args->vacuum_base_threshold!= (int)VACBASETHRESHOLD)
1292-
sprintf(szCommand,"%s -v %i",szCommand,args->vacuum_base_threshold);
1419+
sprintf(szCommand,"%s -v %d",szCommand,args->vacuum_base_threshold);
12931420
if (args->vacuum_scaling_factor!= (float)VACSCALINGFACTOR)
12941421
sprintf(szCommand,"%s -V %f",szCommand,args->vacuum_scaling_factor);
12951422
if (args->analyze_base_threshold!= (int) (VACBASETHRESHOLD /2))
1296-
sprintf(szCommand,"%s -a %i",szCommand,args->analyze_base_threshold);
1423+
sprintf(szCommand,"%s -a %d",szCommand,args->analyze_base_threshold);
12971424
if (args->analyze_scaling_factor!= (float) (VACSCALINGFACTOR /2))
12981425
sprintf(szCommand,"%s -A %f",szCommand,args->analyze_scaling_factor);
12991426
if (args->debug!= (int)AUTOVACUUM_DEBUG)
1300-
sprintf(szCommand,"%s -d %i",szCommand,args->debug);
1301-
1427+
sprintf(szCommand,"%s -d %d",szCommand,args->debug);
1428+
if (args->av_vacuum_cost_delay!=-1)
1429+
sprintf(szCommand,"%s -d %d",szCommand,args->av_vacuum_cost_delay);
1430+
if (args->av_vacuum_cost_page_hit!=-1)
1431+
sprintf(szCommand,"%s -d %d",szCommand,args->av_vacuum_cost_page_hit);
1432+
if (args->av_vacuum_cost_page_miss!=-1)
1433+
sprintf(szCommand,"%s -d %d",szCommand,args->av_vacuum_cost_page_miss);
1434+
if (args->av_vacuum_cost_page_dirty!=-1)
1435+
sprintf(szCommand,"%s -d %d",szCommand,args->av_vacuum_cost_page_dirty);
1436+
if (args->av_vacuum_cost_limit!=-1)
1437+
sprintf(szCommand,"%s -d %d",szCommand,args->av_vacuum_cost_limit);
1438+
13021439
/* And write the new value */
13031440
if (RegSetValueEx(hk,"ImagePath",0,REG_EXPAND_SZ, (LPBYTE)szCommand, (DWORD)strlen(szCommand)+1))
13041441
return-4;
@@ -1366,7 +1503,6 @@ static
13661503
int
13671504
VacuumLoop(intargc,char**argv)
13681505
{
1369-
charbuf[256];
13701506
intj=0,
13711507
loops=0;
13721508

@@ -1516,45 +1652,11 @@ VacuumLoop(int argc, char **argv)
15161652
* analyze
15171653
*/
15181654
if (tbl->curr_vacuum_count-tbl->CountAtLastVacuum >=tbl->vacuum_threshold)
1519-
{
1520-
/*
1521-
* if relisshared = t and database
1522-
* != template1 then only do an
1523-
* analyze
1524-
*/
1525-
if (tbl->relisshared>0&&strcmp("template1",dbs->dbname))
1526-
snprintf(buf,sizeof(buf),"ANALYZE %s",tbl->table_name);
1527-
else
1528-
snprintf(buf,sizeof(buf),"VACUUM ANALYZE %s",tbl->table_name);
1529-
if (args->debug >=1)
1530-
{
1531-
sprintf(logbuffer,"Performing: %s",buf);
1532-
log_entry(logbuffer,LVL_DEBUG);
1533-
fflush(LOGOUTPUT);
1534-
}
1535-
send_query(buf,dbs);
1536-
update_table_thresholds(dbs,tbl,VACUUM_ANALYZE);
1537-
if (args->debug >=2)
1538-
print_table_info(tbl);
1539-
}
1655+
perform_maintenance_command(dbs,tbl,VACUUM_ANALYZE);
15401656
elseif (tbl->curr_analyze_count-tbl->CountAtLastAnalyze >=tbl->analyze_threshold)
1541-
{
1542-
snprintf(buf,sizeof(buf),"ANALYZE %s",tbl->table_name);
1543-
if (args->debug >=1)
1544-
{
1545-
sprintf(logbuffer,"Performing: %s",buf);
1546-
log_entry(logbuffer,LVL_DEBUG);
1547-
fflush(LOGOUTPUT);
1548-
}
1549-
send_query(buf,dbs);
1550-
update_table_thresholds(dbs,tbl,ANALYZE_ONLY);
1551-
if (args->debug >=2)
1552-
print_table_info(tbl);
1553-
}
1554-
1555-
break;/* once we have found a
1556-
* match, no need to keep
1557-
* checking. */
1657+
perform_maintenance_command(dbs,tbl,ANALYZE_ONLY);
1658+
1659+
break;/* We found a match, no need to keep looping. */
15581660
}
15591661

15601662
/*
@@ -1566,7 +1668,7 @@ VacuumLoop(int argc, char **argv)
15661668
}/* end for table while loop */
15671669
}/* end for j loop (tuples in PGresult) */
15681670
}/* end if (res != NULL) */
1569-
}/* close of if(xid_wraparound_check()) */
1671+
}/* close of if(xid_wraparound_check()) */
15701672
/* Done working on this db, Clean up, then advance cur_db */
15711673
PQclear(res);
15721674
res=NULL;
@@ -1585,7 +1687,7 @@ VacuumLoop(int argc, char **argv)
15851687
if (args->debug >=2)
15861688
{
15871689
sprintf(logbuffer,
1588-
"%i All DBs checked in: %.0f usec, will sleep for %i secs.",
1690+
"%d All DBs checked in: %.0f usec, will sleep for %d secs.",
15891691
loops,diff,sleep_secs);
15901692
log_entry(logbuffer,LVL_DEBUG);
15911693
fflush(LOGOUTPUT);

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