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Date: Wed, 19 Mar 2014 19:22:55 +0100
Message-ID: <CA+s+GJDZGS5Mm-hcZ8r6OevEGvULH67HOG99TeCRX7cMoeyf7A@mail.gmail.com>
From: Wladimir <laanwj@gmail.com>
To: Angel Leon <gubatron@gmail.com>
Content-Type: multipart/alternative; boundary=047d7b10caa9ce2c7404f4f9bdd9
Cc: Bitcoin Dev <bitcoin-development@lists.sourceforge.net>
Subject: Re: [Bitcoin-development] [QT] how to disable block verification
 for faster UI testing?
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On Wed, Mar 19, 2014 at 6:27 PM, Angel Leon <gubatron@gmail.com> wrote:

> the command line options mention a -checklevel  parameter.
> I've been passing 0 assuming there'd be little to no verification, but
> it's happened a few times that when I open the official binary (while not
> doing development) there's some sort of database corruption and Bitcoin-Qt
> needs to reindex blocks on disk, a process that can take probably a whole
> day.
>
> how do you guys develop the UI and avoid these issues?
>

In general I do very little with the database while developing the UI. I
have various seperate bitcoin data directories (both testnet and mainnet)
to try things out. Before doing something risky I just make a copy.

These days I also do a lot of development with -regtest, as it allows
quickly setting up test scenarios.

What are you trying to test specifically? The progress bar while reindexing?

If you have database problems are you perhaps switching between 0.8.x and
0.9.x with the same directory? In that case see the downgrading warning
here: https://bitcoin.org/bin/0.9.0/README.txt .

Wladimir

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<div dir=3D"ltr"><br><div class=3D"gmail_extra"><div class=3D"gmail_quote">=
On Wed, Mar 19, 2014 at 6:27 PM, Angel Leon <span dir=3D"ltr">&lt;<a href=
=3D"mailto:gubatron@gmail.com" target=3D"_blank">gubatron@gmail.com</a>&gt;=
</span> wrote:<br>

<blockquote class=3D"gmail_quote" style=3D"margin:0px 0px 0px 0.8ex;border-=
left:1px solid rgb(204,204,204);padding-left:1ex"><div dir=3D"ltr">the comm=
and line options mention a -checklevel =C2=A0parameter.<br>I&#39;ve been pa=
ssing 0 assuming there&#39;d be little to no verification, but it&#39;s hap=
pened a few times that when I open the official binary (while not doing dev=
elopment) there&#39;s some sort of database corruption and Bitcoin-Qt needs=
 to reindex blocks on disk, a process that can take probably a whole day.<b=
r>


<br>how do you guys develop the UI and avoid these issues?<br></div></block=
quote><div><br></div><div>In general I do very little with the database whi=
le developing the UI. I have various seperate bitcoin data directories (bot=
h testnet and mainnet) to try things out. Before doing something risky I ju=
st make a copy.<br>

<br></div><div>These days I also do a lot of development with -regtest, as =
it allows quickly setting up test scenarios.<br></div><div><br></div><div>W=
hat are you trying to test specifically? The progress bar while reindexing?=
<br>

<br></div><div>If you have database problems are you perhaps switching betw=
een 0.8.x and 0.9.x with the same directory? In that case see the downgradi=
ng warning here: <a href=3D"https://bitcoin.org/bin/0.9.0/README.txt">https=
://bitcoin.org/bin/0.9.0/README.txt</a> .<br>
</div><div><br>Wladimir<br><br></div></div></div></div>

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