Re: Simplifying wal_sync_method
Bruce Momjian <pgman@candle.pha.pa.us>
From: Bruce Momjian <pgman@candle.pha.pa.us>
To: Marko Kreen <marko@l-t.ee>
Cc: PostgreSQL-development <pgsql-hackers@postgreSQL.org>
Date: 2005-08-08T21:38:59Z
Lists: pgsql-hackers
Marko Kreen wrote: > On Mon, Aug 08, 2005 at 03:56:39PM -0400, Bruce Momjian wrote: > > Currently, here are the options available for wal_sync_method: > > > > #wal_sync_method = fsync # the default varies across platforms: > > # fsync, fdatasync, fsync_writethrough, > > # open_sync, open_datasync > > On same topic: > > http://archives.postgresql.org/pgsql-general/2005-07/msg00811.php > > Why does win32 PostgreSQL allow data corruption by default? It behaves the same on Unix as Win32, and if you have battery-backed cache, you don't need writethrough, so we don't have it as default. I am going to write a section in the manual for 8.1 about these reliability issues. -- Bruce Momjian | http://candle.pha.pa.us pgman@candle.pha.pa.us | (610) 359-1001 + If your life is a hard drive, | 13 Roberts Road + Christ can be your backup. | Newtown Square, Pennsylvania 19073