Re: Dumping and reloading stuff in 6.5.3

Martijn van Oosterhout <kleptog@cupid.suninternet.com>

From: Martijn van Oosterhout <kleptog@cupid.suninternet.com>
To: Lincoln Yeoh <lylyeoh@mecomb.com>
Cc: Tom Lane <tgl@sss.pgh.pa.us>, Peter Eisentraut <peter_e@gmx.net>, pgsql-general@postgresql.org
Date: 2000-05-15T14:12:25Z
Lists: pgsql-hackers
Lincoln Yeoh wrote:
> 
> Actually, say if I use postgresql on a journalling file system, would this
> problem go away? e.g. I just lose data not written, but the database will
> be at a known uncorrupted state, consistent with logs.

Hmm, someone may have to correct me on this but last time I checked all
the
journalling filesystems currently available journalled *filesystem* 
*metadata*. IOW, after a crash, the filesystem structure will be intact,
but your database maybe completely corrupt.

Anyway, how does the filesystem driver know what is a consistant state 
for the database? For that postgres would have to do it's own
journalling,
right?
-- 
Martijn van Oosterhout <kleptog@cupid.suninternet.com>
http://cupid.suninternet.com/~kleptog/