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+From: David Bremner <david@tethera.net>\r
+To: Mark Walters <markwalters1009@gmail.com>, notmuch@notmuchmail.org\r
+Subject: Re: [PATCH] dump: make dump take Xapian write lock\r
+In-Reply-To: <1403554349-8888-1-git-send-email-markwalters1009@gmail.com>\r
+References: <87zjhh67e7.fsf@qmul.ac.uk>\r
+ <1403554349-8888-1-git-send-email-markwalters1009@gmail.com>\r
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+Date: Wed, 16 Jul 2014 19:36:35 -0300\r
+Message-ID: <878unt7wy4.fsf@maritornes.cs.unb.ca>\r
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+\r
+Mark Walters <markwalters1009@gmail.com> writes:\r
+\r
+> Dump currently only takes the read lock. Xapian can cope with some\r
+> changes while maintaining a read snapshot but with more changes it\r
+> fails. Currently notmuch just gives a xapian error.\r
+>\r
+> To avoid this we take the write lock when dumping. This prevents other\r
+> notmuch processes from modifying the xapian database preventing this\r
+> error.\r
+\r
+pushed. This needs a NEWS item.\r
+\r
+d\r