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Diffstat (limited to 'tickets/7bffecb37eb447d1990f2c220b562b0c/Maildir/new/1543221306.M870846P9860Q1.koom')
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diff --git a/tickets/7bffecb37eb447d1990f2c220b562b0c/Maildir/new/1543221306.M870846P9860Q1.koom b/tickets/7bffecb37eb447d1990f2c220b562b0c/Maildir/new/1543221306.M870846P9860Q1.koom new file mode 100644 index 0000000..e26bdbe --- /dev/null +++ b/tickets/7bffecb37eb447d1990f2c220b562b0c/Maildir/new/1543221306.M870846P9860Q1.koom @@ -0,0 +1,122 @@ +Return-Path: <ick-discuss-bounces@ick.liw.fi> +X-Original-To: distix@pieni.net +Delivered-To: distix@pieni.net +Received: from yaffle.pepperfish.net (yaffle.pepperfish.net [88.99.213.221])
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+ Mon, 26 Nov 2018 10:34:55 +0200 (EET) +Date: Mon, 26 Nov 2018 10:34:54 +0200 +From: Lars Wirzenius <liw@liw.fi> +To: Daniel Silverstone <dsilvers@digital-scurf.org> +Message-ID: <20181126083454.GA2458@exolobe1.liw.fi> +References: <20181123183716.GB5774@exolobe1.liw.fi>
+ <20181126082537.avtwyxuu3mghkgwp@somnambulist.local> +MIME-Version: 1.0 +In-Reply-To: <20181126082537.avtwyxuu3mghkgwp@somnambulist.local> +User-Agent: Mutt/1.10.1 (2018-07-13) +X-Pepperfish-Transaction: fbe3-31b3-fe4e-c6b6 +X-Pepperfish-Transaction-By: platypus +Cc: ick-discuss@ick.liw.fi +Subject: Re: New Ick component: Muck, for JSON storage +X-BeenThere: ick-discuss@ick.liw.fi +X-Mailman-Version: 2.1.5 +Precedence: list +List-Id: discussions about the ick CI system <ick-discuss-ick.liw.fi> +List-Unsubscribe: <https://listmaster.pepperfish.net/cgi-bin/mailman/listinfo/ick-discuss-ick.liw.fi>,
+ <mailto:ick-discuss-request@ick.liw.fi?subject=unsubscribe> +List-Archive: <http://listmaster.pepperfish.net/pipermail/ick-discuss-ick.liw.fi> +List-Post: <mailto:ick-discuss@ick.liw.fi> +List-Help: <mailto:ick-discuss-request@ick.liw.fi?subject=help> +List-Subscribe: <https://listmaster.pepperfish.net/cgi-bin/mailman/listinfo/ick-discuss-ick.liw.fi>,
+ <mailto:ick-discuss-request@ick.liw.fi?subject=subscribe> +Content-Type: multipart/mixed; boundary="===============4622624238269411860==" +Mime-version: 1.0 +Sender: ick-discuss-bounces@ick.liw.fi +Errors-To: ick-discuss-bounces@ick.liw.fi + + +--===============4622624238269411860== +Content-Type: multipart/signed; micalg=pgp-sha512;
+ protocol="application/pgp-signature"; boundary="Q68bSM7Ycu6FN28Q" +Content-Disposition: inline + + +--Q68bSM7Ycu6FN28Q +Content-Type: text/plain; charset=us-ascii +Content-Disposition: inline +Content-Transfer-Encoding: quoted-printable + +On Mon, Nov 26, 2018 at 08:25:37AM +0000, Daniel Silverstone wrote:
+> On Fri, Nov 23, 2018 at 20:37:16 +0200, Lars Wirzenius wrote:
+> > Thoughts?
+>=20
+> Currently only one jumps out:
+>=20
+> > Muck stores JSON objects in memory, but persistently: they get written
+> > to disk and loaded back into memory if the service is restarted.
+>=20
+> Does Muck offer any guarantees as to the durability of writes? If the
+> Muck host reboots unexpectedly, how much data will be lost?
+
+At the moment, the prototype opens the changelog file in append mode,
+and just write to it. It doesn't try to fsync or otherwise ensure data
+is committed to disk: I wanted to keep things simple. (Neither does
+the ick controller for its current storage solution.)
+
+For an eventual production version, I'll want to add at least the
+fsync calls (data and file and directory metadata). When I/we get
+there, I would appreciate help with those details.
+
+--=20
+I want to build worthwhile things that might last. --joeyh
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+ +--===============4622624238269411860== +Content-Type: text/plain; charset="us-ascii" +MIME-Version: 1.0 +Content-Transfer-Encoding: 7bit +Content-Disposition: inline + +_______________________________________________
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