Re: True ACID under linux (no fsync)?

From: shawn everett <everett(at)pgweb(dot)com>
To: markw <markw(at)mohawksoft(dot)com>
Cc: pgsql-general(at)postgresql(dot)org
Subject: Re: True ACID under linux (no fsync)?
Date: 2000-10-31 19:56:48
Message-ID: Pine.LNX.4.21.0010311154350.18279-100000@alder.pgweb.com
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I may be horriblly out of my element here but, I'm going to jump in anyway
:)

If you mount a floppy and copy a large file to it, you will get a prompt
back fairly quickly.

If you type: sync right after

The sync command writes everything to the floppy as expected.

Shawn

On Tue, 31 Oct 2000, markw wrote:

> "Gary Howland (During daytime)" wrote:
>
> > Hi,
> >
> > Just a quickie - I heard that linux does not have a working fsync() call
> > (it has no concept of raw devices). In other words, fsync cannot be used
> > to ensure that data is on disk (try it with a floppy - it returns IMMEDIATELY!!! - long before the write finishes)
>
> Are you sure? Where is this information?
>
>
> > This is for ALL linuxes.
> >
> > Does this mean that postgres is unrealiable (or non ACID-conforming) under linux?
> >
> > Gary
> >
> > --
> > Friends help you move.
> > Real friends help you move bodies.
> >
> > _______________________________________________________________________
> >
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>
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