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Add warning about the need to increase "max_fsm_relations" and 

"max_fsm_relations" for vacuums.  Also improve VACUUM VERBOSE final
message text.

Ron Mayer
This commit is contained in:
Bruce Momjian 2005-03-12 05:21:52 +00:00
parent c82f76e1ac
commit 45905425a0
1 changed files with 17 additions and 3 deletions
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20
src/backend/storage/freespace/freespace.c
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@ -8,7 +8,7 @@
* Portions Copyright (c) 1994, Regents of the University of California
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/storage/freespace/freespace.c,v 1.37 2004/12/31 22:00:54 pgsql Exp $
* $PostgreSQL: pgsql/src/backend/storage/freespace/freespace.c,v 1.38 2005/03/12 05:21:52 momjian Exp $
*
*
* NOTES:
@ -706,11 +706,25 @@ PrintFreeSpaceMapStatistics(int elevel)
needed = (sumRequests + numRels) * CHUNKPAGES;
ereport(elevel,
(errmsg("free space map: %d relations, %d pages stored; %.0f total pages needed",
(errmsg("free space map: %d relations, %d pages stored; %.0f total pages used",
numRels, storedPages, needed),
errdetail("Allocated FSM size: %d relations + %d pages = %.0f kB shared memory.",
errdetail("FSM size: %d relations + %d pages = %.0f kB shared memory.",
MaxFSMRelations, MaxFSMPages,
(double) FreeSpaceShmemSize() / 1024.0)));
if (numRels == MaxFSMRelations)
ereport(NOTICE,
(errmsg("max_fsm_relations(%d) equals the number of relations checked",
MaxFSMRelations),
errhint("You have >= %d relations.\n"
"Consider increasing the configuration parameter \"max_fsm_relations\".",
numRels)));
else if (needed > MaxFSMPages)
ereport(NOTICE,
(errmsg("the number of page slots needed (%.0f) exceeds max_fsm_pages (%d)",
needed,MaxFSMPages),
errhint("Consider increasing the configuration parameter \"max_fsm_relations\"\n"
"to a value over %.0f.", needed)));
}
/*