[Dovecot] Problem to setup replication

28 Jan 2014

      Hi,
i tried to setup replication since some days but I'am stuck now.
My conf:
# 2.2.10: /etc/dovecot/dovecot.conf
# OS: Linux 2.6.32-431.3.1.el6.x86_64 x86_64 CentOS release 6.5 (Final)
dsync_remote_cmd = ssh -l%{login} %{host} /usr/bin/doveadm dsync-server -u%u -l%{lock_timeout} -n%{namespace}
log_path = /var/log/dovecot
mail_gid = 5000
mail_home = /var/vmail/%d/%n
mail_location = maildir:~/Maildir
mail_plugins = " notify replication"
mail_uid = 5000
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 ihave
mbox_write_locks = fcntl
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 = remote:vmail@server1.domain.dom
replication_full_sync_interval = 1 hours
sieve = ~/.dovecot.sieve
sieve_dir = ~/sieve
}
protocols = imap sieve
service aggregator {
fifo_listener replication-notify-fifo {
user = vmail
}
unix_listener replication-notify {
user = vmail
}
}
service auth {
unix_listener /var/spool/postfix/private/auth {
mode = 0666
user = postfix
}
unix_listener auth-master {
mode = 0600
user = vmail
}
unix_listener auth-userdb {
group = vmail
mode = 0600
user = vmail
}
}
service managesieve-login {
inet_listener sieve_deprecated {
port = 2000
}
}
service replicator {
process_min_avail = 1
unix_listener replicator-doveadm {
mode = 0600
user = vmail
}
}
ssl = required
ssl_cert = 

sql-conf:
driver = mysql
connect = host=127.0.0.1 dbname=xxx user=mailuser password=xxx
default_pass_scheme = SSHA512
password_query = SELECT email as user, password FROM virtual_users WHERE email='%u';
user_query = SELECT email as user FROM virtual_users WHERE email ='%u';
iterate_query = SELECT email as user FROM virtual_users WHERE email='%u';

The config on the other node is similar, except the mail_replica settings. The weird thing is, that my logs are completly empty. I see only the dovecot startup messages and nothing else. I don't understand why the replication never starts by itself or why there are no errors or anything else in the log. I already read the dovecot replication howto in the official documentation, but IMO I've setup everything already like in the docs.

I've already tried to replicate my mailboxes using dsync, but if I run the dsync command I get only this output:
bash-4.1$ ssh vmail@server1.domain.dom /usr/bin/doveadm dsync-server -u john@domain.dom
VERSION dsync   3       2
Hhostname       sync_ns_prefix  sync_box        sync_box_guid   sync_type       debug   sync_visible_namespaces exclude_mailboxes       send_mail_requests      backup_send     backup_recv  lock_timeout     no_mail_sync    no_backup_overwrite     purge_remote
Smailbox_guid   last_uidvalidity        last_common_uid last_common_modseq      last_common_pvt_modseq  changes_during_sync
Nname   existence       mailbox_guid    uid_validity    uid_next        last_renamed_or_created subscribed      last_subscription_change
Dhierarchy_sep  mailboxes       dirs    unsubscribes
Bmailbox_guid   uid_validity    uid_next        messages_count  first_recent_uid        highest_modseq  highest_pvt_modseq      mailbox_lost    cache_fields    have_guids      have_save_guids       have_only_guid128
Atype   key     value   stream  deleted last_change     modseq
Ctype   uid     guid    hdr_hash        modseq  pvt_modseq      save_timestamp  add_flags       remove_flags    final_flags     keywords_reset  keyword_changes
Rguid   uid
Mguid   uid     pop3_uidl       pop3_order      received_date   stream
cname   decision        last_used
.
Hserver1.domain.dom
dsync-remote(john@domain.dom): Error: dsync(local): I/O has stalled, no activity for 600 seconds
dsync-remote(john@domain.dom): Error: Timeout during state=slave_recv_handshake
Any help would be appreciated, because I've really no other ideas anymore.
Thanks in advance
PS: Excuse my english, I'am german :D

Daniel Thielemann

Daniel Thielemann

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