Re: Lost updates to Notmuch database

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+ Thu, 18 Feb 2016 01:03:13 -0000\r
+From: David Bremner <david@tethera.net>\r
+To: Eric J <eric@deptj.eu>, notmuch@notmuchmail.org\r
+Subject: Re: Lost updates to Notmuch database\r
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+References: <337393ce5e2484d64f837a44b2c4f2ea32f91295-NM@bruno.deptj.eu>\r
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+Date: Wed, 17 Feb 2016 21:03:13 -0400\r
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+\r
+Eric J <eric@deptj.eu> writes:\r
+\r
+> However, if I do it twice, in different processes, at the same time, one\r
+> file is added and tagged properly, the other is not (totally unfindable\r
+> by notmuch search). Neither process reports any error, and they both log\r
+> their actions normally. Actually a third simultaneous process also fails\r
+> to leave any result in the database.\r
+\r
+It should be impossible for more than one process to open a Xapian\r
+database for writing at the same time. So if the processes are really\r
+running in parallel, you should be getting error codes from the later\r
+calls to notmuch_database_open{_verbose}. You claim that's not\r
+happening, which is puzzling. Maybe you can try to duplicate your\r
+problem with a tiny C program.\r
+\r