Return-Path: Received: from smtp1.linuxfoundation.org (smtp1.linux-foundation.org [172.17.192.35]) by mail.linuxfoundation.org (Postfix) with ESMTPS id 5243D71 for ; Wed, 18 Nov 2015 10:15:55 +0000 (UTC) X-Greylist: whitelisted by SQLgrey-1.7.6 Received: from mail-yk0-f175.google.com (mail-yk0-f175.google.com [209.85.160.175]) by smtp1.linuxfoundation.org (Postfix) with ESMTPS id E3EFD13D for ; Wed, 18 Nov 2015 10:15:54 +0000 (UTC) Received: by ykdv3 with SMTP id v3so54981837ykd.0 for ; Wed, 18 Nov 2015 02:15:54 -0800 (PST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=jtimon-cc.20150623.gappssmtp.com; s=20150623; h=mime-version:in-reply-to:references:date:message-id:subject:from:to :content-type:content-transfer-encoding; bh=tAY88sxyOOyCs2/P6U3NjK0modzvIWxLvB8hm2mo5kQ=; b=P4of7UDHWfA8KFW4/R0pz8AdyIe4mJgkKgYkjAEkubAEQbSGAlwu6wgKd9/Gs14iQn pnlTRuAxCF1w+egxzeTbm8k48sJtPGOzr/Pg/jukzY8GfBPgEwwFiRtdc6TCBaiXYxU4 pHCK8fBvKZeFpzvRMcXpV6C/obQw4U6pspTk7bXne4SBUF4U/5Zya1qDi1nbJj6yuHcd nICK2lc8esWeUsOIp0vXl6QXIu4W8xA4IlsBI0akU/i8NQ9K9fZc32kq/bYkJv1uBOpp XSC/tGOumHptX3wGAzWRMupHisTwlllHo0TPT4Kw92vRrCJESzbRDvErlLke4Zdat/d5 lv/g== X-Google-DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=1e100.net; s=20130820; h=x-gm-message-state:mime-version:in-reply-to:references:date :message-id:subject:from:to:content-type:content-transfer-encoding; bh=tAY88sxyOOyCs2/P6U3NjK0modzvIWxLvB8hm2mo5kQ=; b=NaIztvtCp/n4Dt+1SOSTqeu8sXNkRLBYAl0QPTWmfh4kff2VKIsgMAxtDsb4b7Sbr5 M3ep36fyh+RojI0KdDFCjpe2m9/1ua5I7cDrojPWoTIWt51etsZTbMLvqI5dY7LJivi5 TqfupunC11X3jTjN7jfp1TK1Gn/NdqUod8K/nwI6NyoKDrp1SrA9x/CsBaEPsfnuSI3g jdXuyZR4qrAYNpWhfKs1JDxRl7iCbSj1ab4Y4dBMAtccYwHobRDJtexWW0PLlHCb6kSd VcyP5wXJdb6BWqEh9Hlg0/NUxNSLnNaKICj8sIOxzz1Ip5FLlG5qcfHW9g5u87Kw/kXG tKoQ== X-Gm-Message-State: ALoCoQmXyBZtCNO8D5AtxZn0LgL+ng0bZwgpL6FuM2H+VTSOeXZI8R7q8AWPJKMDunBuF8gtHMPN MIME-Version: 1.0 X-Received: by 10.13.250.69 with SMTP id k66mr653060ywf.107.1447841754211; Wed, 18 Nov 2015 02:15:54 -0800 (PST) Received: by 10.31.132.147 with HTTP; Wed, 18 Nov 2015 02:15:54 -0800 (PST) In-Reply-To: References: <201511132228.47815.luke@dashjr.org> <201511142111.24046.luke@dashjr.org> <201511142127.53255.luke@dashjr.org> Date: Wed, 18 Nov 2015 11:15:54 +0100 Message-ID: From: =?UTF-8?B?Sm9yZ2UgVGltw7Nu?= To: Shuning Hong , Bitcoin Dev Content-Type: text/plain; charset=UTF-8 Content-Transfer-Encoding: quoted-printable X-Spam-Status: No, score=-2.6 required=5.0 tests=BAYES_00,DKIM_SIGNED, DKIM_VALID,RCVD_IN_DNSWL_LOW autolearn=ham version=3.3.1 X-Spam-Checker-Version: SpamAssassin 3.3.1 (2010-03-16) on smtp1.linux-foundation.org X-Mailman-Approved-At: Wed, 18 Nov 2015 12:00:23 +0000 Subject: Re: [bitcoin-dev] BIP - Block size doubles at each reward halving with max block size of 32M X-BeenThere: bitcoin-dev@lists.linuxfoundation.org X-Mailman-Version: 2.1.12 Precedence: list List-Id: Bitcoin Development Discussion List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , X-List-Received-Date: Wed, 18 Nov 2015 10:15:55 -0000 On Wed, Nov 18, 2015 at 10:13 AM, Shuning Hong wrot= e: > 2015-11-15 20:16 GMT+08:00 Jorge Tim=C3=B3n : >> The time threshold must be set enough in the future to give users time t= o upgrade. But we can perceive miners' adoption, so if the system knows the= y haven't upgraded, it should wait for them to upgrade (it would be nice to= have an equivalent mechanism to wait for the rest of the users, but unfort= unately there's none). > > If the majority of the miners never upgrade, how could we treat that > BIP? Wait forever? Assuming it was deployed as an uncontroversial hardfork as recommended in BIP99, the deployment would use versionbits (BIP9) and the hardfork would timeout. But this timeout would clearly signal that either the minimum activation threshold wasn't giving enough time for all users to upgrade (apparently miners didn't had time) or the hardfork is not really an uncontroversial hardfork but rather a schism one. Then, assuming some people still want to deploy it as a schism hardfork, bip99 recommends using only a mediantime threshold without versionbits nor miner upgrade confirmation.