Hi! Since I upgraded to 2.3.13 (Invoca RPM rev 4) I've been running into a mysterious replication bug. In some circumstances, creating a user with a three letter long username causes the sync master process to choke, on either signal 11 or 6. Like this: --clip-- i08.mappi.helsinki.fi> cm user.jmm --clip-- Jan 12 18:31:01 scn3 i08/syncserver[25821]: Failed to access inbox for jmm Jan 12 18:31:01 scn3 i08/master[31569]: process 25821 exited, signaled to death by 6 Jan 12 18:31:07 scn3 i08/syncserver[30193]: login: pcn3.mappi.helsinki.fi [128.214.20.131] cyr_sync DIGEST-MD5 User logged in Jan 12 18:31:07 scn3 i08/syncserver[30193]: Failed to access inbox for jmm Jan 12 18:31:07 scn3 i08/master[31569]: process 30193 exited, signaled to death by 11 [etc, the sync_client keeps retrying] --clip-- [jmmpelto@pcn3 ~]$ ps -ef|grep sync.*i08 cyrus 8255 1 0 18:16 ? 00:00:00 /usr/lib/cyrus-imapd/sync_client -r -C /etc/imapd.conf.i08.master cyrus 22092 8255 0 18:33 ? 00:00:00 /usr/lib/cyrus-imapd/sync_client -r -C /etc/imapd.conf.i08.master jmmpelto 22095 20355 0 18:33 pts/4 00:00:00 grep sync.*i08 [jmmpelto@pcn3 ~]$ sudo kill 8255 Password: [jmmpelto@pcn3 ~]$ ps -ef|grep sync.*i08 jmmpelto 25898 20355 0 18:34 pts/4 00:00:00 grep sync.*i08 [jmmpelto@pcn3 ~]$ [the child died, again, because the server died] --clip-- [jmmpelto@pcn3 ~]$ sudo su - cyrus -c "/usr/lib/cyrus-imapd/sync_client -r -C /etc/imapd.conf.i08.master" [jmmpelto@pcn3 ~]$ ps -ef|grep sync.*i08 cyrus 11483 1 0 18:35 ? 00:00:00 /usr/lib/cyrus-imapd/sync_client -r -C /etc/imapd.conf.i08.master cyrus 11484 11483 1 18:35 ? 00:00:00 /usr/lib/cyrus-imapd/sync_client -r -C /etc/imapd.conf.i08.master jmmpelto 13382 20355 0 18:35 pts/4 00:00:00 grep sync.*i08 [after restart, rolling replication runs OK] --clip-- [jmmpelto@scn3 ~]$ sudo /usr/lib/cyrus-imapd/mbpath -C /etc/imapd.conf.i08.replica user.jmm Invalid mailbox name: user.jmm [but the mailbox never got replicated] --clip-- -bash-3.2$ cat log-8255 USER jmm -bash-3.2$ /usr/lib/cyrus-imapd/sync_client -v -o -r -C /etc/imapd.conf.i08.master -f log-8255 USER jmm USER jmm USER jmm --clip-- Jan 12 18:39:19 scn3 i08/syncserver[30016]: login: pcn3.mappi.helsinki.fi [128.214.20.131] cyr_sync DIGEST-MD5 User logged in Jan 12 18:39:19 scn3 i08/syncserver[30016]: Failed to access inbox for jmm Jan 12 18:39:19 scn3 i08/master[31569]: process 30016 exited, signaled to death by 11 [jmmpelto@scn3 ~]$ sudo /usr/lib/cyrus-imapd/mbpath -C /etc/imapd.conf.i08.replica user.jmm Invalid mailbox name: user.jmm [trying to say "USER jmm" results in sig11 death, no replication] --clip-- -bash-3.2$ /usr/lib/cyrus-imapd/sync_client -v -o -r -C /etc/imapd.conf.i08.master -f - ACL user.jmm SETACL user.jmm Promoting: ACL user.jmm -> MAILBOX user.jmm MAILBOXES user.jmm META jmm [..however, doing something that gets escalated to creating the user...] --clip-- [jmmpelto@scn3 ~]$ sudo /usr/lib/cyrus-imapd/mbpath -C /etc/imapd.conf.i08.replica user.jmm /var/spool/imap/jjjr/j/user/jmm [...doesn't result in process death, instead, the user & mailbox do get replicated] --clip-- The irritating thing about this is, I can't reliably recreate the bug. It appears that - the user name has to be a prefix of already existing usernames - there has to be at least some (ten? twenty?) usernames the new username is a prefix of - however, when trying to create users jmbtest1..9 and jmbtes10..20, I wasn't able to recreate the bug with user.jmb (there were 5 'real' usernames with the prefix jmb), even though I was able to hit it with user.jme that only has 18 real usernames... I didn't have this problem with 2.3.11, so it has to be relatively new. Might anyone else have noticed anything similar? --Janne -- Janne Peltonen <janne.peltonen@xxxxxxxxxxx> PGP Key ID: 0x9CFAC88B Please consider membership of the Hospitality Club (http://www.hospitalityclub.org) ---- Cyrus Home Page: http://cyrusimap.web.cmu.edu/ Cyrus Wiki/FAQ: http://cyrusimap.web.cmu.edu/twiki List Archives/Info: http://asg.web.cmu.edu/cyrus/mailing-list.html
