Did you run reconstruct like the upgrade documentation recommends? 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
https://www.cyrusimap.org/docs/cyrus-imapd/2.5.0/install-upgrade.php http://www.cyrusimap.org/~vanmeeuwen/imap/release-notes/2.5.0.html On Nov 17, 2016, at 5:00 AM, Deniss via Info-cyrus <info-cyrus@lists.andrew.cmu.edu<mailto:info-cyrus@lists.andrew.cmu.edu>> wrote: Hello, I trying to migrate one big cyrus imap server from 2.4 to 2.5.9. I updated binaries, fix db backend in imapd.conf and converted mailboxes.db with ctl_mboxlist -d & -u to twoskip. cyrus ran fine until morning when a count of simultanious sessions started to rise. then imapd processes become locked on mailboxes.db when logs show something like Nov 17 08:04:21 srv1 imap[11019]: cmdtimer: 'y...@mail.xxx<mailto:y...@mail.xxx>' 'list' '<none>' '46.741322' '0.000000' '46.741322' Nov 17 08:04:21 srv1 imap[11019]: buf: A1 LIST "" "*" I converted mailboxes.db back to skiplist and got a bunch (10-20 per sec) of following logs: Nov 17 09:59:09 srv1 imap[5352]: skiplist: longlock /var/imap/mailboxes.db for 177.7 seconds Nov 17 09:59:09 srv1 imap[6760]: skiplist: longlock /var/imap/mailboxes.db for 169.7 seconds Nov 17 09:59:09 srv1 imap[6764]: skiplist: longlock /var/imap/mailboxes.db for 171.7 seconds Nov 17 09:59:09 srv1 imap[5230]: skiplist: longlock /var/imap/mailboxes.db for 171.8 seconds Nov 17 09:59:09 srv1 imap[5251]: skiplist: longlock /var/imap/mailboxes.db for 203.2 seconds Nov 17 09:59:09 srv1 imap[5221]: skiplist: longlock /var/imap/mailboxes.db for 168.9 seconds then I rolled back to cyrus 2.4 (converting mailboxes.db back to old format) and the server started to work just fine again. I run 8core 16gb box with mailboxes.db on SSD disk, noswap, Linux 4.4.8-hardened glibc-2.20 x86_64-pc-linux-gnu-4.8.4 on Gentoo mailboxes.db is ~200Mb depending of format 135M /var/imap/mailboxes.plain 180M /var/imap/mailboxes.db.skiplist.24 215M /var/imap/mailboxes.db.skiplist.25 262M /var/imap/mailboxes.db.twoskip.25 Any ideas or suggestion for investigation ? Best, Deniss ---- Cyrus Home Page: http://www.cyrusimap.org/ List Archives/Info: http://lists.andrew.cmu.edu/pipermail/info-cyrus/ To Unsubscribe: https://lists.andrew.cmu.edu/mailman/listinfo/info-cyrus
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