Account Options

  1. Sign in
The old Google Groups will be going away soon, but your browser is incompatible with the new version.
Google Groups Home
« Groups Home
Message from discussion using zodb with pyramid for simulations/lots of writing

Received: by 10.43.51.137 with SMTP id vi9mr7232852icb.16.1346182885222;
        Tue, 28 Aug 2012 12:41:25 -0700 (PDT)
X-BeenThere: pylons-discuss@googlegroups.com
Received: by 10.231.4.209 with SMTP id 17ls1504204ibs.6.gmail; Tue, 28 Aug
 2012 12:41:18 -0700 (PDT)
Received: by 10.42.250.133 with SMTP id mo5mr7266585icb.23.1346182878905;
        Tue, 28 Aug 2012 12:41:18 -0700 (PDT)
Received: by 10.42.250.133 with SMTP id mo5mr7266584icb.23.1346182878887;
        Tue, 28 Aug 2012 12:41:18 -0700 (PDT)
Return-Path: <iainduncanli...@gmail.com>
Received: from mail-ob0-f169.google.com (mail-ob0-f169.google.com [209.85.214.169])
        by gmr-mx.google.com with ESMTPS id ad4si1534030igc.1.2012.08.28.12.41.18
        (version=TLSv1/SSLv3 cipher=OTHER);
        Tue, 28 Aug 2012 12:41:18 -0700 (PDT)
Received-SPF: pass (google.com: domain of iainduncanli...@gmail.com designates 209.85.214.169 as permitted sender) client-ip=209.85.214.169;
Authentication-Results: gmr-mx.google.com; spf=pass (google.com: domain of iainduncanli...@gmail.com designates 209.85.214.169 as permitted sender) smtp.mail=iainduncanli...@gmail.com; dkim=pass header...@gmail.com
Received: by mail-ob0-f169.google.com with SMTP id x4so13088493obh.0
        for <pylons-discuss@googlegroups.com>; Tue, 28 Aug 2012 12:41:18 -0700 (PDT)
DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed;
        d=gmail.com; s=20120113;
        h=mime-version:in-reply-to:references:date:message-id:subject:from:to
         :content-type;
        bh=niUOIIQ+IraZXcCUPqCXHYlPDyZ8HDCGWn75oO7WPMw=;
        b=u/qF4wM5gwvbBBTvJBFYbdezM+r4QgK/0NswFDKk2wubZAxEU1MsgKpM2W5v3bEE8K
         RUWargV7NZvK2VUkIJCdG5lx3Qb4OL2fP6ttkOACTAiA/RVgyFtVlkiQpTPblfYcvP+i
         G3m78O7RDP0tNQhGMLTvwbn0V0eoi0R8zluUfIwVURthX1ZeptGTOVGq3ygCkKpnxJyF
         EXLFSgSQjD9utptC++X9NLi6Ul3IrZzCAb5sQlEYrJ3n9SobofHuhpiZpBnnI39QBh1G
         wUSoPz3NYbAKgxagua4YC78fic9F7u1knO+bp9eJDUdQvfKPvci4hrTNRls71h0Fs6ya
         z2cA==
MIME-Version: 1.0
Received: by 10.60.7.197 with SMTP id l5mr13831775oea.33.1346182878667; Tue,
 28 Aug 2012 12:41:18 -0700 (PDT)
Received: by 10.60.56.66 with HTTP; Tue, 28 Aug 2012 12:41:18 -0700 (PDT)
In-Reply-To: <CAAPh5F=jqSrE6Ogr=72fnqYrJp+W-Z7GgpNryE+2LcEWGzf...@mail.gmail.com>
References: <CAN9NcLz9z5RgGAqf3DqK9_hW+cbPbP=vi3NdB6gvHQu1GJO...@mail.gmail.com>
	<CAAPh5Fk6ov_oXO7hAMgT9+kBPZ4fUH+jHbeOt55TdSvD1PH...@mail.gmail.com>
	<CAN9NcLy-taLZCyzxeq+=LjHyGo7FtGAH1skcA8m-mxWD0qE...@mail.gmail.com>
	<CAAPh5F=jqSrE6Ogr=72fnqYrJp+W-Z7GgpNryE+2LcEWGzf...@mail.gmail.com>
Date: Tue, 28 Aug 2012 12:41:18 -0700
Message-ID: <CAN9NcLwcOUb1-9Y56YyaBp7jgYTgkNJa--5kEcX2sLyK2K2...@mail.gmail.com>
Subject: Re: using zodb with pyramid for simulations/lots of writing
From: Iain Duncan <iainduncanli...@gmail.com>
To: pylons-discuss@googlegroups.com
Content-Type: multipart/alternative; boundary=e89a8f83a16349239304c858a031

--e89a8f83a16349239304c858a031
Content-Type: text/plain; charset=windows-1252
Content-Transfer-Encoding: quoted-printable

Thanks, much appreciated!
Iain

On Tue, Aug 28, 2012 at 12:31 PM, Malthe Borch <mbo...@gmail.com> wrote:

> On 28 August 2012 21:20, Iain Duncan <iainduncanli...@gmail.com> wrote:
> > Thanks Malthe. I had been hoping that a pure object database would make
> the
> > data modelling a lot simpler. Can you weigh in on how much the above
> issues
> > would be a problem? Like is it so bad that I just abandon the idea and
> > figure it out in SQLAlchemy, which I know well?
>
> I think if you've got a write concurrency requirement > 10 per second
> =96 sustained =96 then you'll be unhappy with ZODB in its current
> implementation.
>
> It's entirely possible to write an object database like ZODB that
> supports much more than the concurrency threshold suggested above, but
> nobody has stepped up.
>
> \malthe
>
> --
> You received this message because you are subscribed to the Google Groups
> "pylons-discuss" group.
> To post to this group, send email to pylons-discuss@googlegroups.com.
> To unsubscribe from this group, send email to
> pylons-discuss+unsubscribe@googlegroups.com.
> For more options, visit this group at
> http://groups.google.com/group/pylons-discuss?hl=3Den.
>
>

--e89a8f83a16349239304c858a031
Content-Type: text/html; charset=windows-1252
Content-Transfer-Encoding: quoted-printable

Thanks, much appreciated!<div>Iain<br><br><div class=3D"gmail_quote">On Tue=
, Aug 28, 2012 at 12:31 PM, Malthe Borch <span dir=3D"ltr">&lt;<a href=3D"m=
ailto:mbo...@gmail.com" target=3D"_blank">mbo...@gmail.com</a>&gt;</span> w=
rote:<br>
<blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1p=
x #ccc solid;padding-left:1ex">On 28 August 2012 21:20, Iain Duncan &lt;<a =
href=3D"mailto:iainduncanli...@gmail.com">iainduncanli...@gmail.com</a>&gt;=
 wrote:<br>

&gt; Thanks Malthe. I had been hoping that a pure object database would mak=
e the<br>
<div class=3D"im">&gt; data modelling a lot simpler. Can you weigh in on ho=
w much the above issues<br>
&gt; would be a problem? Like is it so bad that I just abandon the idea and=
<br>
&gt; figure it out in SQLAlchemy, which I know well?<br>
<br>
</div>I think if you&#39;ve got a write concurrency requirement &gt; 10 per=
 second<br>
=96 sustained =96 then you&#39;ll be unhappy with ZODB in its current<br>
implementation.<br>
<br>
It&#39;s entirely possible to write an object database like ZODB that<br>
supports much more than the concurrency threshold suggested above, but<br>
nobody has stepped up.<br>
<div class=3D"HOEnZb"><div class=3D"h5"><br>
\malthe<br>
<br>
--<br>
You received this message because you are subscribed to the Google Groups &=
quot;pylons-discuss&quot; group.<br>
To post to this group, send email to <a href=3D"mailto:pylons-discuss@googl=
egroups.com">pylons-discuss@googlegroups.com</a>.<br>
To unsubscribe from this group, send email to <a href=3D"mailto:pylons-disc=
uss%2Bunsubscribe@googlegroups.com">pylons-discuss+unsubscribe@googlegroups=
.com</a>.<br>
For more options, visit this group at <a href=3D"http://groups.google.com/g=
roup/pylons-discuss?hl=3Den" target=3D"_blank">http://groups.google.com/gro=
up/pylons-discuss?hl=3Den</a>.<br>
<br>
</div></div></blockquote></div><br></div>

--e89a8f83a16349239304c858a031--