From mboxrd@z Thu Jan  1 00:00:00 1970
Message-ID: <714cd9d62658c91ea12dd049c08f7c1f@quanstro.net>
From: erik quanstrom <quanstro@quanstro.net>
Date: Fri,  9 Jan 2009 15:27:43 -0500
To: 9fans@9fans.net
In-Reply-To: <9140.1231531881@lunacy.ugrad.cs.cmu.edu>
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Subject: Re: [9fans] venti
Topicbox-Message-UUID: 7eb37832-ead4-11e9-9d60-3106f5b1d025

> > A check could be put in by having venti put some sort of lock
> > somewhere on the disk.  But that would lead to problems if
> > venti doesn't shut down properly: venti would be gone but the
> > lock would still be there.
>
> Post an (ignored) mode 000 fd in /srv?  Since nobody could open
> it, it would always have one reference, and would go away when
> the venti did?

dns tries a similar trick.  unfortunately, this means that dns
doesn't like to be restarted when it's gone haywire as slay dns|rc
doesn't seem to remove dns' entry from srv.

it also assumes direct-attach storage.

- erik