From mboxrd@z Thu Jan  1 00:00:00 1970
Message-ID: <ecdbd96a3a0c2eadcab5ac6b7a912a62@plan9.bell-labs.com>
To: 9fans@cse.psu.edu
Subject: Re: [9fans] Fossil questions
From: "Russ Cox" <rsc@plan9.bell-labs.com>
In-Reply-To: <2E3A344C-332A-11D7-9C05-000A27AE643E@sockfarm.net>
MIME-Version: 1.0
Content-Type: text/plain; charset="US-ASCII"
Content-Transfer-Encoding: 7bit
Date: Tue, 28 Jan 2003 21:02:21 -0500
Topicbox-Message-UUID: 4a18566e-eacb-11e9-9e20-41e7f4b1d025

> Suppose I didn't have a score at all. Is there some way to
> recover the most recent score, perhaps from the venti server?

Yes.  Since the data is not encrypted, if you have access to
the raw disk partitions storing the arenas, you can find
anything you want.

> Also, though it's no big loss, is everything stored on Venti
> in the last two days inaccessible?

Do a pull to get the new file /sys/src/cmd/venti/printarena.c
and then

	cd /sys/src/cmd/venti
	mk 8.printarena

Then, run this on the Venti server as the host owner:

cd /sys/src/cmd/venti
ventihttp=your-server:8000
hget http://$ventihttp/index | 
awk '
 /^index=/ { blockSize=0+substr($3, 11); }
 /^arena=/ { arena=substr($1, 7); }
 /^	arena=/ { start=0+substr($5, 2)-blockSize; printf("./8.printarena -o %d %s\n", start, $3); }' |
rc |
sed -n 's/^(.*) 1$/vac:\1/p'

to get a list of all the vac archives on the server.

Russ