Re: Second draft of logging patches

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+From: David Bremner <david@tethera.net>\r
+To: Michal Sojka <sojkam1@fel.cvut.cz>, notmuch@notmuchmail.org\r
+Subject: Re: Second draft of logging patches\r
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+On Sat, 13 Nov 2010 06:25:57 +0100, Michal Sojka <sojkam1@fel.cvut.cz> wrote:\r
+> On Wed, 10 Nov 2010, David Bremner wrote:\r
+> > I had a thought of a possibly interesting application of the (yet to be\r
+> > written) log playback code. It could be use to implement a simple\r
+> > queuing system where commands are only logged but not actually run on\r
+> > the database. \r
+\r
+> Hi, I think this could be very interesting and that it could make the\r
+> tagging operation asynchronous and thus faster as was suggested by\r
+> Sebastian in id:"87k4l5whwe.fsf@SSpaeth.de".\r
+> \r
+> In this case, however, the queuing should happen in the client, not in\r
+> the library.\r
+\r
+Agreed. The current implementation of automagically logging things in\r
+the library would be undesirable here. That specific thing shouldn't be\r
+too hard to change. Also worth thinking about is (optionally) using the\r
+Maildir to log most tag changes; Maildirs are designed (imperfectly, but\r
+still) to support simulataneous writes.  The database could then catch\r
+up by reading the Maildir.\r
+\r
+d\r