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Turn off zero_damaged_pages in the right place (ie, in the autovac 

process not in the postmaster) and with the right GucSource (needs to
be a nontransactional source since we've not started an xact yet).
This commit is contained in:
Tom Lane 2006-03-07 17:32:22 +00:00
parent 8d51c276ca
commit e6107da53c
1 changed files with 8 additions and 4 deletions
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12
src/backend/postmaster/autovacuum.c
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@ -10,7 +10,7 @@
* *
* *
* IDENTIFICATION * IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/postmaster/autovacuum.c,v 1.14 2006/03/07 03:03:09 momjian Exp $ * $PostgreSQL: pgsql/src/backend/postmaster/autovacuum.c,v 1.15 2006/03/07 17:32:22 tgl Exp $
* *
*------------------------------------------------------------------------- *-------------------------------------------------------------------------
*/ */
@ -125,9 +125,6 @@ autovac_start(void)
if (!AutoVacuumingActive()) if (!AutoVacuumingActive())
return 0; return 0;
/* Even if zero_damaged_pages is true, we don't want autovacuum zeroing. */
SetConfigOption("zero_damaged_pages", "false", PGC_SUSET, PGC_S_SESSION);
/* /*
* Do nothing if too soon since last autovacuum exit. This limits how * Do nothing if too soon since last autovacuum exit. This limits how
* often the daemon runs. Since the time per iteration can be quite * often the daemon runs. Since the time per iteration can be quite
@ -307,6 +304,13 @@ AutoVacMain(int argc, char *argv[])
PG_SETMASK(&UnBlockSig); PG_SETMASK(&UnBlockSig);
/*
* Force zero_damaged_pages OFF in the autovac process, even if it is
* set in postgresql.conf. We don't really want such a dangerous option
* being applied non-interactively.
*/
SetConfigOption("zero_damaged_pages", "false", PGC_SUSET, PGC_S_OVERRIDE);
/* Get a list of databases */ /* Get a list of databases */
dblist = autovac_get_database_list(); dblist = autovac_get_database_list();