Re: Xapian locking errors with custom query parser

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+Date: Fri, 28 Jan 2011 11:35:03 -0500\r
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+Message-ID: <AANLkTinW_n+zMtLC-fy=naUGsAiFDwdd-mAqSWEDvF=W@mail.gmail.com>\r
+Subject: Re: Xapian locking errors with custom query parser\r
+From: Austin Clements <amdragon@mit.edu>\r
+To: Michal Sojka <sojkam1@fel.cvut.cz>\r
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+--001636aa2b74e61969049aeaa589\r
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+\r
+This should most definitely not happen.  I'll look in to it.\r
+\r
+On Fri, Jan 28, 2011 at 5:18 AM, Michal Sojka <sojkam1@fel.cvut.cz> wrote:\r
+\r
+> Hi Austin,\r
+>\r
+> when I switched to using your custom query parser I started experiencing\r
+> "Unable to get write lock" errors when I run my initial tagging script.\r
+> I thought that this was because I run the script while processing the\r
+> mail in Emacs, but today I realized that this happens even without Emacs\r
+> and that it can be reproduced by a simple command below.\r
+>\r
+> i=0; while notmuch tag +xxx tag:whatever; do i=$((i+1)); echo $i; done\r
+>\r
+> It seems that sometimes the unlocking of the Xapian database happens\r
+> somewhat lazily and when the subsequent command starts I get:\r
+>\r
+> A Xapian exception occurred opening database: Unable to get write lock on\r
+> /home/wsh/mail/.notmuch/xapian: already locked\r
+>\r
+> This happens almost regularly after a few iterations of the loop even if\r
+> the query doesn't match anything.\r
+>\r
+> Do you have an idea what may cause this?\r
+>\r
+> Can you reproduce this on your system?\r
+>\r
+> The version I use can be obtained from\r
+>\r
+>  git://rtime.felk.cvut.cz/notmuch.git custom-query-pasrser\r
+>\r
+> Thanks\r
+> -Michal\r
+> _______________________________________________\r
+> notmuch mailing list\r
+> notmuch@notmuchmail.org\r
+> http://notmuchmail.org/mailman/listinfo/notmuch\r
+>\r
+\r
+--001636aa2b74e61969049aeaa589\r
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+Content-Transfer-Encoding: quoted-printable\r
+\r
+This should most definitely not happen. =A0I&#39;ll look in to it.<br><br><=\r
+div class=3D"gmail_quote">On Fri, Jan 28, 2011 at 5:18 AM, Michal Sojka <sp=\r
+an dir=3D"ltr">&lt;<a href=3D"mailto:sojkam1@fel.cvut.cz">sojkam1@fel.cvut.=\r
+cz</a>&gt;</span> wrote:<br>\r
+<blockquote class=3D"gmail_quote" style=3D"margin:0 0 0 .8ex;border-left:1p=\r
+x #ccc solid;padding-left:1ex;">Hi Austin,<br>\r
+<br>\r
+when I switched to using your custom query parser I started experiencing<br=\r
+>\r
+&quot;Unable to get write lock&quot; errors when I run my initial tagging s=\r
+cript.<br>\r
+I thought that this was because I run the script while processing the<br>\r
+mail in Emacs, but today I realized that this happens even without Emacs<br=\r
+>\r
+and that it can be reproduced by a simple command below.<br>\r
+<br>\r
+i=3D0; while notmuch tag +xxx tag:whatever; do i=3D$((i+1)); echo $i; done<=\r
+br>\r
+<br>\r
+It seems that sometimes the unlocking of the Xapian database happens<br>\r
+somewhat lazily and when the subsequent command starts I get:<br>\r
+<br>\r
+A Xapian exception occurred opening database: Unable to get write lock on /=\r
+home/wsh/mail/.notmuch/xapian: already locked<br>\r
+<br>\r
+This happens almost regularly after a few iterations of the loop even if<br=\r
+>\r
+the query doesn&#39;t match anything.<br>\r
+<br>\r
+Do you have an idea what may cause this?<br>\r
+<br>\r
+Can you reproduce this on your system?<br>\r
+<br>\r
+The version I use can be obtained from<br>\r
+<br>\r
+ =A0git://<a href=3D"http://rtime.felk.cvut.cz/notmuch.git" target=3D"_blan=\r
+k">rtime.felk.cvut.cz/notmuch.git</a> custom-query-pasrser<br>\r
+<br>\r
+Thanks<br>\r
+-Michal<br>\r
+_______________________________________________<br>\r
+notmuch mailing list<br>\r
+<a href=3D"mailto:notmuch@notmuchmail.org">notmuch@notmuchmail.org</a><br>\r
+<a href=3D"http://notmuchmail.org/mailman/listinfo/notmuch" target=3D"_blan=\r
+k">http://notmuchmail.org/mailman/listinfo/notmuch</a><br>\r
+</blockquote></div><br>\r
+\r
+--001636aa2b74e61969049aeaa589--\r