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+ id 1WudDq-00031K-Id; Wed, 11 Jun 2014 08:45:26 +0100\r
+From: Mark Walters <markwalters1009@gmail.com>\r
+To: Eric Gillespie <epg@pretzelnet.org>, notmuch@notmuchmail.org\r
+Subject: Re: nmh + notmuch: expected to work?\r
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+References: <24056.1402437857@wundagore>\r
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+Date: Wed, 11 Jun 2014 08:45:25 +0100\r
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+\r
+\r
+Hello\r
+\r
+On Tue, 10 Jun 2014, Eric Gillespie <epg@pretzelnet.org> wrote:\r
+> I'm a long-time nmh user, and I heard notmuch was supposed to\r
+> handle mh folders, so I gave it a shot.\r
+>\r
+> It's crazy slow. The first 'notmuch new' took 4 hours, but maybe\r
+> that's expected. However, every 'notmuch new' takes 4 - 10\r
+> hours. The only time it completes faster is if I immediately\r
+> re-run it without incorporating new mail. In that case, it\r
+> completes in 0.8s - 38s, which is quite reasonable for my mail.\r
+>\r
+> I have 18.5 GB, 1,058,370 messages in 315 directories.\r
+>\r
+> From the messages it prints, apparently any directory that\r
+> changes (receives a new message) has to have all its files\r
+> indexed from scratch. What?!\r
+\r
+This is definitely not expected behaviour and doesn't happen under\r
+maildir. I would not expect it to happen under mh format but I am not\r
+familiar with that format.\r
+\r
+> # re-index after some new mail (< 1000; not 704083!)\r
+> Processed 704083 total files in 11h 7m 48s (17 files/sec.).\r
+> Added 701791 new messages to the database. Removed 701332 messages. Detected 2136 file renames.\r
+>\r
+> # re-index again, no new mail\r
+> Processed 60 total files in 40s (1 files/sec.).\r
+> No new mail.\r
+>\r
+> # incorporate 1 new message\r
+> Processed 9181 total files in 7m 54s (19 files/sec.).\r
+> Added 9071 new messages to the database. Removed 9071 messages. Detected 12 file renames.\r
+>\r
+> # incorporate 1 new message\r
+> Processed 111 total files in almost no time.\r
+> Added 1 new message to the database. Detected 12 file renames.\r
+>\r
+> # incorporate 1 new message\r
+> Processed 757 total files in 44s (17 files/sec.).\r
+> Added 645 new messages to the database. Removed 645 messages. Detected 14 file renames.\r
+\r
+Is anything else accessing modifying or doing anything to the MH\r
+hierarchy? Some things (eg http://wiki2.dovecot.org/MailboxFormat/MH)\r
+indicate that some tools do manipulate the hierarchy (eg sortm renames\r
+things). \r
+\r
+if you run notmuch new as \r
+\r
+notmuch new --verbose --debug\r
+\r
+it might spit out some more useful information as to what notmuch is\r
+doing (*do* check that nothing it says is sensitive before posting\r
+though!)\r
+\r
+Another thing you could try is \r
+notmuch search --output=messages folder:somefolder \r
+\r
+before and after adding a message to somefolder (*) and seeing if that\r
+shows significant changes. (Note message ids do say a lot about who your\r
+correspondents are so you probably don't want to post the outputs to the\r
+list.)\r
+\r
+Best wishes\r
+\r
+Mark\r
+\r
+(*) the syntax for folder based searches changed recently so it may\r
+depend which version of notmuch you are running: i didn't see it\r
+mentioned in your email.\r
+\r
projects / notmuch-archives.git / commitdiff