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From: 23hiro@googlemail.com
To: Fans of the OS Plan 9 from Bell Labs <9fans@9fans.net>
Subject: Re: [9fans] [plan9mod] Query regarding venti scores
Date: Fri,  6 Feb 2009 11:17:18 +0100	[thread overview]
Message-ID: <f4d8fa40902060217p3357b1e1jcfbd2b4a7609d0e6@mail.gmail.com> (raw)
In-Reply-To: <f109869e-4aac-42fe-910c-a7de8e741525@a39g2000prl.googlegroups.com>

With today's amount of storage the probability of a collision is too
low for that to happen.
I read that in the Venti paper[1].
I would not consider them UUIDs though, since the same data blocks
will have the same sha-1 hash on both servers.
If that doesn't cause a problem you're fine

[1] http://plan9.bell-labs.com/sys/doc/venti/venti.pdf


On 2/6/09, anoop.anoop@gmail.com <anoop.anoop@gmail.com> wrote:
> Hello All,
>
> I have a query regarding the scores in venti. Here is my question:
> Since the venti scores are SHA-1 hashes, can they be considered as
> UUIDs? I have two different venti servers and am storing different
> sets of databolcks on each. I am wondering whether a scenario will
> arise where server A and server B gives the same score for completely
> different datablocks.
>
> Any help is greatly appreciated. Thanks in advance.
>
> Regards,
> Anoop
>
>



  reply	other threads:[~2009-02-06 10:17 UTC|newest]

Thread overview: 4+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-02-06  9:49 anoop.anoop
2009-02-06 10:17 ` 23hiro [this message]
2009-02-06 14:10   ` Anthony Sorace
2009-02-06 15:28     ` erik quanstrom

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