From mboxrd@z Thu Jan 1 00:00:00 1970 From: Vitaly Subject: Re: git clone: very long "resolving deltas" phase Date: Wed, 07 Apr 2010 09:55:19 +0400 Message-ID: <4BBC1E47.80308@gmail.com> References: <4BBB5346.6070607@gmail.com> <4BBB53F5.9010106@op5.se> Mime-Version: 1.0 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Cc: Shawn Pearce , Andreas Ericsson , git@vger.kernel.org, Matthieu Moy To: Nicolas Pitre X-From: git-owner@vger.kernel.org Wed Apr 07 07:55:51 2010 Return-path: Envelope-to: gcvg-git-2@lo.gmane.org Received: from vger.kernel.org ([209.132.180.67]) by lo.gmane.org with esmtp (Exim 4.69) (envelope-from ) id 1NzOEw-000497-Qn for gcvg-git-2@lo.gmane.org; Wed, 07 Apr 2010 07:55:51 +0200 Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1752838Ab0DGFzq (ORCPT ); Wed, 7 Apr 2010 01:55:46 -0400 Received: from mail-bw0-f209.google.com ([209.85.218.209]:41248 "EHLO mail-bw0-f209.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1752758Ab0DGFzp (ORCPT ); Wed, 7 Apr 2010 01:55:45 -0400 Received: by bwz1 with SMTP id 1so497194bwz.21 for ; Tue, 06 Apr 2010 22:55:43 -0700 (PDT) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=gmail.com; s=gamma; h=domainkey-signature:received:received:message-id:date:from :user-agent:mime-version:to:cc:subject:references:in-reply-to :content-type:content-transfer-encoding; bh=R1z8lWRcY5YJBxn4EYaQF6R8rdH+gTBsQFaeKYcHqFs=; b=RAJdNVT5wd0bdSt//i7u5CNZOCGpeuLsyaHapFtGoiwO9n/8rtSlkWS5iCSPLmtDFf gdOtjPwq28E+j+fAQELkbFGSmRn4e8W/OOKfejLNAdl87scc9J1V8LKhMo+IcfyCh6Ip NaP5w2IRHL9XY1YPdyj7GgNPXqN1Wrz4FrtGk= DomainKey-Signature: a=rsa-sha1; c=nofws; d=gmail.com; s=gamma; h=message-id:date:from:user-agent:mime-version:to:cc:subject :references:in-reply-to:content-type:content-transfer-encoding; b=aCrONQZ5/qtbF9Cf5qYjaqQpurxlSlzpZiQjOHBRoiBsbSWFL8/A4gNbx/kcTcYoXx AvStfOi84wlaKdDo/q+2tNz8AUlQ5oO7qucDY2f5R3jfJ91k+ly6REmR+V1Xljwm9uuW E8ZHXJ2DMvqXY5pzMhAlPTf887/z7TN7c9K48= Received: by 10.204.25.145 with SMTP id z17mr8457844bkb.181.1270619743769; Tue, 06 Apr 2010 22:55:43 -0700 (PDT) Received: from [172.16.11.219] ([195.218.191.171]) by mx.google.com with ESMTPS id 14sm6631708bwz.2.2010.04.06.22.55.42 (version=TLSv1/SSLv3 cipher=RC4-MD5); Tue, 06 Apr 2010 22:55:42 -0700 (PDT) User-Agent: Mozilla/5.0 (X11; U; Linux x86_64; en-US; rv:1.9.1.9pre) Gecko/20100217 Shredder/3.0.3pre In-Reply-To: Sender: git-owner@vger.kernel.org Precedence: bulk List-ID: X-Mailing-List: git@vger.kernel.org Archived-At: I suspected the security reasons. Ok, we work in trusted environment. How can we turn this behavior off? On 04/07/2010 01:09 AM, Nicolas Pitre wrote: > On Tue, 6 Apr 2010, Vitaly Berov wrote: > > >> Why does git compute checksums on the client side? Isn't it already >> calculated on the "server" side? >> > Yes. But Git clients can't trust the server like that. > > The only way to make sure the server didn't send you crap data, or worse > maliciously altered data, is actually to not transfer any checksum data > but to recompute and validate the received payload locally. > > This being said, you should never have to wait 6 hours for that phase to > complete. It is typically a matter of minutes if not seconds. > > > Nicolas > >