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Reduce default value of max_prepared_transactions from 50 to 5. This

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saves nearly 700kB in the default shared memory segment size, which seems
worthwhile, and it is a feature that many users won't use anyway.  Per
Heikki's argument, there is no point in a compromise value --- those who
are using 2PC at all will probably want it at least equal to max_connections.
But we can't set it to zero by default without breaking the prepared_xacts
regression test.
This commit is contained in:
Tom Lane
2005-08-29 21:38:18 +00:00
parent 8aec77fb9f
commit 037709e0b3
4 changed files with 7 additions and 7 deletions
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4
src/backend/utils/misc/guc.c
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@ -10,7 +10,7 @@
* Written by Peter Eisentraut <peter_e@gmx.net>.
*
* IDENTIFICATION
* $PostgreSQL: pgsql/src/backend/utils/misc/guc.c,v 1.286 2005/08/22 17:34:59 momjian Exp $
* $PostgreSQL: pgsql/src/backend/utils/misc/guc.c,v 1.287 2005/08/29 21:38:18 tgl Exp $
*
*--------------------------------------------------------------------
*/
@ -1203,7 +1203,7 @@ static struct config_int ConfigureNamesInt[] =
NULL
},
&max_prepared_xacts,
50, 0, INT_MAX, NULL, NULL
5, 0, INT_MAX, NULL, NULL
},
#ifdef LOCK_DEBUG