From c5ac5114df0669ec74098dfe09e3d4eda871392f Mon Sep 17 00:00:00 2001 From: Tomi Ollila Date: Thu, 18 Feb 2016 16:30:34 +0200 Subject: [PATCH] Re: Lost updates to Notmuch database --- c2/9dcad65103311f5f47dcdb8882d3e49960d736 | 89 +++++++++++++++++++++++ 1 file changed, 89 insertions(+) create mode 100644 c2/9dcad65103311f5f47dcdb8882d3e49960d736 diff --git a/c2/9dcad65103311f5f47dcdb8882d3e49960d736 b/c2/9dcad65103311f5f47dcdb8882d3e49960d736 new file mode 100644 index 000000000..cb63eb831 --- /dev/null +++ b/c2/9dcad65103311f5f47dcdb8882d3e49960d736 @@ -0,0 +1,89 @@ +Return-Path: +X-Original-To: notmuch@notmuchmail.org +Delivered-To: notmuch@notmuchmail.org +Received: from localhost (localhost [127.0.0.1]) + by arlo.cworth.org (Postfix) with ESMTP id 177266DE020D + for ; Thu, 18 Feb 2016 13:34:58 -0800 (PST) +X-Virus-Scanned: Debian amavisd-new at cworth.org +X-Spam-Flag: NO +X-Spam-Score: 1.189 +X-Spam-Level: * +X-Spam-Status: No, score=1.189 tagged_above=-999 required=5 tests=[AWL=-0.566, + DATE_IN_PAST_06_12=1.103, SPF_NEUTRAL=0.652] autolearn=disabled +Received: from arlo.cworth.org ([127.0.0.1]) + by localhost (arlo.cworth.org [127.0.0.1]) (amavisd-new, port 10024) + with ESMTP id a_YrTmgYDpF9 for ; + Thu, 18 Feb 2016 13:34:56 -0800 (PST) +Received: from guru.guru-group.fi (guru.guru-group.fi [46.183.73.34]) + by arlo.cworth.org (Postfix) with ESMTP id A09386DE01CA + for ; Thu, 18 Feb 2016 13:34:55 -0800 (PST) +Received: from guru.guru-group.fi (localhost [IPv6:::1]) + by guru.guru-group.fi (Postfix) with ESMTP id 819F71000CA; + Thu, 18 Feb 2016 16:30:34 +0200 (EET) +From: Tomi Ollila +To: David Bremner , Eric J , + notmuch@notmuchmail.org +Subject: Re: Lost updates to Notmuch database +In-Reply-To: <871t8avnhq.fsf@zancas.localnet> +References: <337393ce5e2484d64f837a44b2c4f2ea32f91295-NM@bruno.deptj.eu> + <871t8avnhq.fsf@zancas.localnet> +User-Agent: Notmuch/0.21+70~g0bc8909 (http://notmuchmail.org) Emacs/24.3.1 + (x86_64-unknown-linux-gnu) +X-Face: HhBM'cA~ +MIME-Version: 1.0 +Content-Type: text/plain +X-BeenThere: notmuch@notmuchmail.org +X-Mailman-Version: 2.1.20 +Precedence: list +List-Id: "Use and development of the notmuch mail system." + +List-Unsubscribe: , + +List-Archive: +List-Post: +List-Help: +List-Subscribe: , + +X-List-Received-Date: Thu, 18 Feb 2016 21:34:58 -0000 + +On Thu, Feb 18 2016, David Bremner wrote: + +> Eric J writes: +> +>> However, if I do it twice, in different processes, at the same time, one +>> file is added and tagged properly, the other is not (totally unfindable +>> by notmuch search). Neither process reports any error, and they both log +>> their actions normally. Actually a third simultaneous process also fails +>> to leave any result in the database. +> +> It should be impossible for more than one process to open a Xapian +> database for writing at the same time. So if the processes are really +> running in parallel, you should be getting error codes from the later +> calls to notmuch_database_open{_verbose}. You claim that's not +> happening, which is puzzling. Maybe you can try to duplicate your +> problem with a tiny C program. + +In addition to that (or even before), you could + +1) be able to reproduce the problem +2) try to reproduce it prefixing the command with ltrace -tt +3) examine carefully the ltrace logs to figure out where the proble lies + +Tomi + +Hmm, Interestingly when I run + +LD_LIBRARY_PATH=~/vc/ext/notmuch/lib ltrace -f -tt ~/vc/ext/notmuch/notmuch-shared new + +I did not see any Xapian references, but when I did + +ltrace -f -tt ~/vc/ext/notmuch/notmuch new + +I did. Interestingly when using libnotmuch.so.4 the xapian interface +is hidden (is it baked inside ~/vc/ext/notmuch/lib/libnotmuch.so.4.3.0 :O) + + -- 2.26.2