Hello,

we are using dovecot 2.2.13 on debian jessie from default repositories in multiple two node replication cluster. For another cluster I was trying to set this up on debian stretch with current dovecot 2.2.27. It seemed that notifiy was not working at all. Running replicate manually did work though. I found several mailing list questions regarding this issue. It looks like there is some locking issue with maildir storage engine or notifying the replicator might not work. Tried to setup sdbox without any improvements.

In version 2.2.31 there is a change in the changelog:

• imap: NOTIFY command has been almost completely broken since the beginning. I guess nobody has been trying to use it.

Question 1: Is this change regarding the notify process that notifies the replicator? Question 2: When will this version be available on dovecot stretch-auto repository? I installed sid version to test. Question 3: What else can I do to make replication work?

Thanks, Vitali

Config:

# OS: Linux 4.9.0-3-amd64 x86_64 Debian 9.0 ext4 auth_mechanisms = plain login default_internal_user = vmail doveadm_password = # hidden, use -P to show it doveadm_port = 12345 dsync_remote_cmd = ssh -l%{login} %{host} doveadm dsync-server -u%u info_log_path = /var/log/dovecot/dovecot-info.log log_path = /var/log/dovecot/dovecot.log log_timestamp = "%Y-%m-%d %H:%M:%S " mail_debug = no mail_location = maildir:/var/vmail/%d/%n mail_plugins = " notify replication" mail_privileged_group = vmail 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-sql.conf driver = sql } plugin { mail_replica = tcp:mx02.example.com replication_full_sync_interval = 24 hour sieve = /var/vmail/%d/%n/.dovecot.sieve sieve_dir = /var/vmail/%d/%n/ sieve_storage = /var/vmail/%d/%n/sieve/ } protocols = " imap pop3" service aggregator { fifo_listener replication-notify-fifo { mode = 0666 user = vmail } unix_listener replication-notify { mode = 0666 user = vmail } } service auth { unix_listener /var/spool/postfix/private/auth { group = postfix mode = 0666 user = postfix } unix_listener auth-master { mode = 0600 user = vmail } user = root } service doveadm { inet_listener { port = 12345 } } service imap-login { inet_listener imap { port = 143 } inet_listener imaps { port = 993 ssl = yes } process_min_avail = 1 } service pop3-login { inet_listener pop3 { port = 110 } inet_listener pop3s { port = 995 ssl = yes } } service replicator { process_min_avail = 1 unix_listener replicator-doveadm { mode = 0666 } } ssl = required ssl_cert = </etc/ssl/certs/cert.crt ssl_cipher_list = HIGH:MEDIUM:+TLSv1:!SSLv2:+SSLv3 ssl_key = # hidden, use -P to show it userdb { args = /etc/dovecot/dovecot-sql.conf driver = sql } protocol lda { auth_socket_path = /var/run/dovecot/auth-userdb log_path = /var/log/dovecot/dovecot-deliver.log mail_plugins = " notify replication sieve" postmaster_address = postmaster@example.com } protocol pop3 { pop3_uidl_format = %08Xu%08Xv }

Log from mx01:

2017-07-03 21:50:54 imap-login: Info: Login: user=<user@example.com>, method=PLAIN, rip=1.2.3.4, lip=172.31.1.100, mpid=9584, TLS, session=<JhSzFW9TxO3VPWNi> 2017-07-03 21:50:54 imap(user): Debug: Loading modules from directory: /usr/lib/dovecot/modules 2017-07-03 21:50:54 imap(user): Debug: Module loaded: /usr/lib/dovecot/modules/lib15_notify_plugin.so 2017-07-03 21:50:54 imap(user): Debug: Module loaded: /usr/lib/dovecot/modules/lib20_replication_plugin.so 2017-07-03 21:50:54 imap(user): Debug: Added userdb setting: mail=maildir:/var/vmail/example.com/user 2017-07-03 21:50:54 imap(user): Debug: Effective uid=5000, gid=5000, home=/var/vmail/example.com/user 2017-07-03 21:50:54 imap(user): Debug: Namespace inbox: type=private, prefix=, sep=, inbox=yes, hidden=no, list=yes, subscriptions=yes location=maildir:/var/vmail/example.com/user 2017-07-03 21:50:54 imap(user): Debug: maildir++: root=/var/vmail/example.com/user, index=, indexpvt=, control=, inbox=/var/vmail/example.com/user, alt= 2017-07-03 21:50:54 imap(user): Debug: INBOX: Mailbox opened because: SELECT 2017-07-03 21:50:54 imap(user): Debug: Deleted Messages: Mailbox opened because: STATUS 2017-07-03 21:50:54 imap-login: Info: Login: user=<user@example.com>, method=PLAIN, rip=1.2.3.4, lip=172.31.1.100, mpid=9586, TLS, session=<HvO9FW9Txu3VPWNi> 2017-07-03 21:50:54 imap(user): Debug: Loading modules from directory: /usr/lib/dovecot/modules 2017-07-03 21:50:54 imap(user): Debug: Module loaded: /usr/lib/dovecot/modules/lib15_notify_plugin.so 2017-07-03 21:50:54 imap(user): Debug: Module loaded: /usr/lib/dovecot/modules/lib20_replication_plugin.so 2017-07-03 21:50:54 imap(user): Debug: Added userdb setting: mail=maildir:/var/vmail/example.com/user 2017-07-03 21:50:54 imap(user): Debug: Effective uid=5000, gid=5000, home=/var/vmail/example.com/user 2017-07-03 21:50:54 imap(user): Debug: Namespace inbox: type=private, prefix=, sep=, inbox=yes, hidden=no, list=yes, subscriptions=yes location=maildir:/var/vmail/example.com/user 2017-07-03 21:50:54 imap(user): Debug: maildir++: root=/var/vmail/example.com/user, index=, indexpvt=, control=, inbox=/var/vmail/example.com/user, alt= 2017-07-03 21:50:54 imap(user): Debug: Deleted Messages: Mailbox opened because: SELECT 2017-07-03 21:50:55 imap(user): Debug: Mailbox Deleted Messages: Opened mail UID=4 because: 10/17 headers not cached (first=CC) (Mail has other cached fields, reset_id=1498996658) 2017-07-03 21:50:55 imap(user): Debug: replication: Replication requested by 'transaction commit', priority=1 2017-07-03 21:50:55 imap(user): Debug: Deleted Messages: Mailbox opened because: STATUS 2017-07-03 21:50:55 doveadm(user): Debug: auth PASS input: 2017-07-03 21:50:55 doveadm(user): Debug: auth USER input: 2017-07-03 21:50:57 imap(user): Debug: Deleted Messages: Mailbox opened because: STATUS 2017-07-03 21:51:01 imap(user): Debug: replication: Replication requested by 'transaction commit', priority=2 2017-07-03 21:51:02 doveadm(user): Debug: auth PASS input: 2017-07-03 21:51:02 doveadm(user): Debug: auth USER input: