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<div class="">Did you run reconstruct like the upgrade documentation recommends?</div>

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<div class="">When I did my upgrade, from 2.4.x to 2.5 that's about all I had to do. I don't recall having to run ctl_mboxlist -du </div>

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<div class=""><a href="https://www.cyrusimap.org/docs/cyrus-imapd/2.5.0/install-upgrade.php" class="">https://www.cyrusimap.org/docs/cyrus-imapd/2.5.0/install-upgrade.php</a></div>

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<div class=""><a href="http://www.cyrusimap.org/~vanmeeuwen/imap/release-notes/2.5.0.html" class="">http://www.cyrusimap.org/~vanmeeuwen/imap/release-notes/2.5.0.html</a></div>

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<div class="">On Nov 17, 2016, at 5:00 AM, Deniss via Info-cyrus <<a href="mailto:info-cyrus@lists.andrew.cmu.edu" class="">info-cyrus@lists.andrew.cmu.edu</a>> wrote:</div>

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<div class="">Hello,<br class="">

<br class="">

I trying to migrate one big cyrus imap server from 2.4 to 2.5.9.<br class="">

<br class="">

I updated binaries, fix db backend in imapd.conf and converted<br class="">

mailboxes.db with ctl_mboxlist -d & -u to twoskip.<br class="">

<br class="">

cyrus ran fine until morning when a count of simultanious sessions<br class="">

started to rise.<br class="">

<br class="">

then imapd processes become locked on mailboxes.db when logs show<br class="">

something like<br class="">

Nov 17 08:04:21 srv1 imap[11019]: cmdtimer: '<a href="mailto:yo@mail.xxx" class="">yo@mail.xxx</a>' 'list'<br class="">

'<none>' '46.741322' '0.000000' '46.741322'<br class="">

Nov 17 08:04:21 srv1 imap[11019]: buf: A1 LIST "" "*"<br class="">

<br class="">

I converted mailboxes.db back to skiplist and got a bunch (10-20 per<br class="">

sec) of following logs:<br class="">

<br class="">

Nov 17 09:59:09 srv1 imap[5352]: skiplist: longlock<br class="">

/var/imap/mailboxes.db for 177.7 seconds<br class="">

Nov 17 09:59:09 srv1 imap[6760]: skiplist: longlock<br class="">

/var/imap/mailboxes.db for 169.7 seconds<br class="">

Nov 17 09:59:09 srv1 imap[6764]: skiplist: longlock<br class="">

/var/imap/mailboxes.db for 171.7 seconds<br class="">

Nov 17 09:59:09 srv1 imap[5230]: skiplist: longlock<br class="">

/var/imap/mailboxes.db for 171.8 seconds<br class="">

Nov 17 09:59:09 srv1 imap[5251]: skiplist: longlock<br class="">

/var/imap/mailboxes.db for 203.2 seconds<br class="">

Nov 17 09:59:09 srv1 imap[5221]: skiplist: longlock<br class="">

/var/imap/mailboxes.db for 168.9 seconds<br class="">

<br class="">

<br class="">

then I rolled back to cyrus 2.4 (converting mailboxes.db back to old<br class="">

format) and the server started to work just fine again.<br class="">

<br class="">

I run 8core 16gb box with mailboxes.db on SSD disk, noswap,<br class="">

Linux 4.4.8-hardened glibc-2.20 x86_64-pc-linux-gnu-4.8.4 on Gentoo<br class="">

<br class="">

mailboxes.db is ~200Mb depending of format<br class="">

135M /var/imap/mailboxes.plain<br class="">

180M /var/imap/mailboxes.db.skiplist.24<br class="">

215M /var/imap/mailboxes.db.skiplist.25<br class="">

262M /var/imap/mailboxes.db.twoskip.25<br class="">

<br class="">

Any ideas or suggestion for investigation ?<br class="">

<br class="">

Best,<br class="">

Deniss<br class="">

----<br class="">

Cyrus Home Page: <a href="http://www.cyrusimap.org/" class="">http://www.cyrusimap.org/</a><br class="">

List Archives/Info: <a href="http://lists.andrew.cmu.edu/pipermail/info-cyrus/" class="">

http://lists.andrew.cmu.edu/pipermail/info-cyrus/</a><br class="">

To Unsubscribe:<br class="">

<a href="https://lists.andrew.cmu.edu/mailman/listinfo/info-cyrus" class="">https://lists.andrew.cmu.edu/mailman/listinfo/info-cyrus</a><br class="">

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</blockquote>

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