Dovecot version 2.3.17 - mail replication stopped working

[Aki Tuomi]

https://github.com/dovecot/core/commit/0407978a8fb0bb9fb4a8f88ce5bdb7f565ee7a84

Aki

> On 28/10/2021 18:11 Aki Tuomi <aki.tuomi at open-xchange.com> wrote:
> 
>  
> Appears option T got removed by accident. We'll fix it latest for 2.3.18, and we'll let you know once it's fixed in master. You can either rollback to 2.3.16 or remove -T from sync options in config.
> 
> Aki
> 
> > On 28/10/2021 17:33 Daniel Botting <daniel.botting at codethink.co.uk> wrote:
> > 
> >  
> > Hi,
> > 
> > We upgraded to Dovecot 2.3.17 today and mail replication has stopped 
> > working as expected, the error in mail.err is:
> > 
> > Oct 28 10:27:44 hostname dovecot: imap-login: Error: 
> > net_connect_unix(/var/run/dovecot/stats-writer) failed: No such file or 
> > directory
> > 
> > Oct 28 10:28:47 hostname dovecot: doveadm: Error: sync: invalid option 
> > -- 'T'
> > 
> > This is constantly repeated afterwards
> > 
> > All the files in /var/run/dovecot have last modified time of 10:27
> > 
> > The permissions on both hosts for this file are:
> > 
> > srw-rw----  1 root    dovecot    0 Oct 28 10:27 stats-writer=
> > 
> > OS: Debian 10.11
> > 
> > Doveconf -n output below:
> > 
> > # 2.3.17 (e2aa53df5b): /etc/dovecot/dovecot.conf
> > # Pigeonhole version 0.5.17 (054dddfa)
> > # OS: Linux 4.19.0-18-amd64 x86_64 Debian 10.11
> > # Hostname: mailserver fqdn
> > auth_verbose = yes
> > default_vsz_limit = 0
> > doveadm_password = # hidden, use -P to show it
> > first_valid_gid = 8
> > first_valid_uid = 8
> > last_valid_gid = 8
> > last_valid_uid = 8
> > lda_mailbox_autocreate = yes
> > lda_mailbox_autosubscribe = yes
> > mail_gid = 8
> > mail_location = maildir:~/Maildir
> > mail_plugins = " notify replication"
> > mail_uid = 8
> > managesieve_notify_capability = mailto
> > managesieve_sieve_capability = fileinto reject envelope 
> > encoded-character vacation subaddress comparator-i;ascii-numeric 
> > relational regex imap4flags copy include variables body enotify 
> > environment mailbox date index ihave duplicate mime foreverypart 
> > extracttext editheader imapflags
> > namespace inbox {
> >    inbox = yes
> >    location =
> >    mailbox Drafts {
> >      special_use = \Drafts
> >    }
> >    mailbox Junk {
> >      special_use = \Junk
> >    }
> >    mailbox Sent {
> >      special_use = \Sent
> >    }
> >    mailbox "Sent Messages" {
> >      special_use = \Sent
> >    }
> >    mailbox Trash {
> >      special_use = \Trash
> >    }
> >    prefix =
> > }
> > passdb {
> >    args = /etc/dovecot/dovecot-ldap.conf.ext
> >    driver = ldap
> > }
> > plugin {
> >    mail_replica = tcps:fqdn:port number
> >    sieve = ~/.dovecot.sieve
> >    sieve_dir = ~/sieve
> >    sieve_extensions = +editheader +imapflags
> > }
> > postmaster_address = postmaster at ourdomain
> > protocols = " imap sieve pop3"
> > replication_dsync_parameters = -d -N -l 15 -U -T 10
> > replication_max_conns = 24
> > service aggregator {
> >    fifo_listener replication-notify-fifo {
> >      user = mail
> >    }
> >    unix_listener replication-notify {
> >      user = mail
> >    }
> > }
> > service auth {
> >    unix_listener /var/run/dovecot-exim-bridge {
> >      mode = 0660
> >      user = Debian-exim
> >    }
> > }
> > service doveadm {
> >    inet_listener {
> >      port = 12345
> >      ssl = yes
> >    }
> > }
> > service imap-login {
> >    inet_listener imap {
> >      port = 143
> >    }
> >    inet_listener imaps {
> >      port = 993
> >      ssl = yes
> >    }
> >    process_limit = 512
> >    process_min_avail = 4
> >    service_count = 1
> > }
> > service imap {
> >    process_limit = 1024
> > }
> > service managesieve-login {
> >    inet_listener sieve {
> >      port = 4190
> >    }
> >    process_min_avail = 1
> >    service_count = 8
> >    vsz_limit = 256 M
> > }
> > service managesieve {
> >    process_limit = 1024
> > }
> > service replicator {
> >    process_min_avail = 1
> >    unix_listener replicator-doveadm {
> >      mode = 0666
> >    }
> > }
> > ssl = required
> > ssl_cert = </ssl cert path
> > ssl_cipher_list = ALL:!LOW:!SSLv2:!EXP:!aNULL
> > ssl_client_ca_dir = /etc/ssl/certs
> > ssl_key = # hidden, use -P to show it
> > userdb {
> >    args = /etc/dovecot/dovecot-ldap.conf.ext
> >    driver = ldap
> >    override_fields = home=/var/mail/%u uid=mail gid=mail
> > }
> > protocol lda {
> >    mail_plugins = " notify replication sieve"
> > }
> > protocol imap {
> >    mail_max_userip_connections = 32
> >    mail_plugins = " notify replication"
> > }
> > protocol sieve {
> >    mail_max_userip_connections = 10
> >    managesieve_logout_format = bytes=%i/%o
> >    managesieve_max_line_length = 64 k
> > }
> > 
> > Best regards
> > 
> > Daniel