From: Sylvain Le Gall <sylvain@le-gall.net>
To: caml-list@inria.fr
Subject: Re: scalable web apps
Date: Mon, 26 Jul 2010 17:10:01 +0000 (UTC) [thread overview]
Message-ID: <slrni4rgb9.e23.sylvain@gallu.homelinux.org> (raw)
In-Reply-To: <201007261850.30437.monnier.florent@gmail.com>
On 26-07-2010, Florent Monnier <monnier.florent@gmail.com> wrote:
> Le lundi 26 juillet 2010 13:20:46, Dario Teixeira a écrit :
>> Hi,
>>
>> > > How does Ocsigen handle database operations?
>> >
>> > I thought it was using PG'OCaml, but maybe I'm wrong.
>>
>> Ocsigen itself does not use PG'OCaml. The two are frequently associated
>> because the latest versions of PG'OCaml are Lwt-friendly and therefore
>> a good choice for Ocsigen apps. (Note that internally, Ocsigen uses
>> either Dbm or Sqlite to store session data).
>
> Both Dbm and Sqlite lock the entire files which blocks concurrent uses,
> isn't it a problem?
>
For sqlite, at least, it uses Lwt_preemptive.detach and sqlite3 contains
the required caml_enter/leave_blocking_section(s). So Lwt should work
without problems with sqlite.
I suppose it is the same for dbm.
Regards,
Sylvain Le Gall
next prev parent reply other threads:[~2010-07-26 17:10 UTC|newest]
Thread overview: 30+ messages / expand[flat|nested] mbox.gz Atom feed top
2010-07-24 7:49 Joel Reymont
2010-07-24 8:57 ` Sylvain Le Gall
2010-07-24 10:55 ` [Caml-list] " William Le Ferrand
2010-07-25 13:52 ` Dario Teixeira
2010-07-25 19:19 ` Joel Reymont
2010-07-26 7:29 ` Török Edwin
2010-07-26 7:59 ` Jérémie Dimino
2010-07-26 8:19 ` Török Edwin
2010-07-27 6:46 ` Jérémie Dimino
2010-07-26 11:27 ` Dario Teixeira
2010-07-26 19:57 ` Jake Donham
2010-07-26 20:02 ` Török Edwin
2010-07-27 6:55 ` Jérémie Dimino
2010-07-26 9:11 ` Sylvain Le Gall
2010-07-26 11:10 ` [Caml-list] " Dario Teixeira
2010-07-26 12:58 ` Sylvain Le Gall
2010-07-26 13:20 ` [Caml-list] " William Le Ferrand
2010-07-25 19:46 ` [Caml-list] " Richard Jones
2010-07-25 21:45 ` Dario Teixeira
2010-07-25 21:56 ` Joel Reymont
2010-07-25 22:03 ` Gabriel Kerneis
2010-07-25 22:24 ` Dario Teixeira
2010-07-26 7:34 ` Richard Jones
2010-07-26 11:20 ` Dario Teixeira
2010-07-26 16:50 ` Florent Monnier
2010-07-26 17:10 ` Sylvain Le Gall [this message]
2010-07-26 17:21 ` [Caml-list] " Gabriel Kerneis
2010-07-26 17:37 ` Sylvain Le Gall
2010-07-25 22:44 ` [Caml-list] " Yoann Padioleau
2010-07-26 9:08 ` Sylvain Le Gall
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