Re: fsync = true beneficial on ext3? - Mailing list pgsql-general

From Richard Welty
Subject Re: fsync = true beneficial on ext3?
Date
Msg-id Mahogany-0.66.0-16912-20040208-142941.00@averillpark.net
Whole thread Raw
In response to Re: fsync = true beneficial on ext3?  (Tom Lane <tgl@sss.pgh.pa.us>)
Responses Re: fsync = true beneficial on ext3?  (Mark Kirkwood <markir@paradise.net.nz>)
List pgsql-general
On Sun, 08 Feb 2004 14:02:26 -0500 Tom Lane <tgl@sss.pgh.pa.us> wrote:

> "Ed L." <pgsql@bluepolka.net> writes:
> > If we write something without sync'ing, presumably it's immediately
> > journaled?

> I was under the impression that ext3 journals only filesystem metadata,
> not the contents of files.

by default, it journals everything, but you can set it to journal metadata
only, i think with the mount option data=writeback. do a "man mount"
and look for ext3 options for details on the data= option.

richard
--
Richard Welty                                         rwelty@averillpark.net
Averill Park Networking                                         518-573-7592
    Java, PHP, PostgreSQL, Unix, Linux, IP Network Engineering, Security

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