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1. Checkpoint.undo may be after checkpoint itself:

Browse Source 
- no more elog(STOP) in StartupXLOG();
   - both checkpoint' undo & redo are used to define
     oldest on-line log file.
2. Ability to pre-allocate a few log files at checkpoint time
   (wal_files option). Off by default.
This commit is contained in:
Vadim B. Mikheev
2001-01-09 06:24:33 +00:00
parent 329001a2ff
commit 4b59366e57
2 changed files with 90 additions and 30 deletions
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6
src/backend/utils/misc/guc.c
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@ -4,7 +4,7 @@
* Support for grand unified configuration scheme, including SET
* command, configuration file, and command line options.
*
* $Header: /cvsroot/pgsql/src/backend/utils/misc/guc.c,v 1.26 2000/12/03 14:36:46 petere Exp $
* $Header: /cvsroot/pgsql/src/backend/utils/misc/guc.c,v 1.27 2001/01/09 06:24:33 vadim Exp $
*
* Copyright 2000 by PostgreSQL Global Development Group
* Written by Peter Eisentraut <peter_e@gmx.net>.
@ -38,6 +38,7 @@ extern bool Log_connections;
extern int CheckPointTimeout;
extern int XLOGbuffers;
extern int XLOGfiles;
extern int XLOG_DEBUG;
extern int CommitDelay;
@ -274,6 +275,9 @@ ConfigureNamesInt[] =
{"wal_buffers", PGC_POSTMASTER, &XLOGbuffers,
8, 4, INT_MAX},
{"wal_files", PGC_POSTMASTER, &XLOGfiles,
0, 0, 64},
{"wal_debug", PGC_SUSET, &XLOG_DEBUG,
0, 0, 16},