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Commit2317a63

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Make fast promotion the default promotion mode.
Continue to allow a request for synchronouscheckpoints as a mechanism in case of problems.
1 parent173c252 commit2317a63

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2 files changed

+8
-24
lines changed

2 files changed

+8
-24
lines changed

‎src/backend/access/transam/xlog.c‎

Lines changed: 2 additions & 13 deletions
Original file line numberDiff line numberDiff line change
@@ -9906,19 +9906,7 @@ CheckForStandbyTrigger(void)
99069906
fast_promote= false;
99079907
}
99089908

9909-
/*
9910-
* We only look for fast promote via the pg_ctl promote option.
9911-
* It would be possible to extend trigger file support for the
9912-
* fast promotion option but that wouldn't be backwards compatible
9913-
* anyway and we're looking to focus further work on the promote
9914-
* option as the right way to signal end of recovery.
9915-
*/
9916-
if (fast_promote)
9917-
ereport(LOG,
9918-
(errmsg("received fast promote request")));
9919-
else
9920-
ereport(LOG,
9921-
(errmsg("received promote request")));
9909+
ereport(LOG, (errmsg("received promote request")));
99229910

99239911
ResetPromoteTriggered();
99249912
triggered= true;
@@ -9934,6 +9922,7 @@ CheckForStandbyTrigger(void)
99349922
(errmsg("trigger file found: %s",TriggerFile)));
99359923
unlink(TriggerFile);
99369924
triggered= true;
9925+
fast_promote= true;
99379926
return true;
99389927
}
99399928
return false;

‎src/bin/pg_ctl/pg_ctl.c‎

Lines changed: 6 additions & 11 deletions
Original file line numberDiff line numberDiff line change
@@ -1107,13 +1107,12 @@ do_promote(void)
11071107
}
11081108

11091109
/*
1110-
* Use two different kinds of promotion file so we can understand
1111-
* the difference between smart and fast promotion.
1110+
* For 9.3 onwards, use fast promotion as the default option.
1111+
* Promotion with a full checkpoint is still possible by writing
1112+
* a file called "promote", e.g.
1113+
* snprintf(promote_file, MAXPGPATH, "%s/promote", pg_data);
11121114
*/
1113-
if (shutdown_mode >=FAST_MODE)
1114-
snprintf(promote_file,MAXPGPATH,"%s/fast_promote",pg_data);
1115-
else
1116-
snprintf(promote_file,MAXPGPATH,"%s/promote",pg_data);
1115+
snprintf(promote_file,MAXPGPATH,"%s/fast_promote",pg_data);
11171116

11181117
if ((prmfile=fopen(promote_file,"w"))==NULL)
11191118
{
@@ -1778,7 +1777,7 @@ do_help(void)
17781777
" [-o \"OPTIONS\"]\n"),progname);
17791778
printf(_(" %s reload [-D DATADIR] [-s]\n"),progname);
17801779
printf(_(" %s status [-D DATADIR]\n"),progname);
1781-
printf(_(" %s promote [-D DATADIR] [-s] [-m PROMOTION-MODE]\n"),progname);
1780+
printf(_(" %s promote [-D DATADIR] [-s]\n"),progname);
17821781
printf(_(" %s kill SIGNALNAME PID\n"),progname);
17831782
#if defined(WIN32)|| defined(__CYGWIN__)
17841783
printf(_(" %s register [-N SERVICENAME] [-U USERNAME] [-P PASSWORD] [-D DATADIR]\n"
@@ -1817,10 +1816,6 @@ do_help(void)
18171816
printf(_(" fast quit directly, with proper shutdown\n"));
18181817
printf(_(" immediate quit without complete shutdown; will lead to recovery on restart\n"));
18191818

1820-
printf(_("\nPromotion modes are:\n"));
1821-
printf(_(" smart promote after performing a checkpoint\n"));
1822-
printf(_(" fast promote quickly without waiting for checkpoint completion\n"));
1823-
18241819
printf(_("\nAllowed signal names for kill:\n"));
18251820
printf(" ABRT HUP INT QUIT TERM USR1 USR2\n");
18261821

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