On 28/3/2014 11:58 πμ, Nikolaos Milas wrote:

When I started the server (vmail.example.com), mirroring started and completed fine (after a few hours).

However, since then, I am not seeing a continued mirroring between the two. I would expect changes to one of the masters to be propagated in real time to the other - which does not happen.

If I manually run (on vmail.example.com):

dsync -u imaptester mirror ssh -l root vmail1.example.com dsync -u imaptester

then these two accounts are synced.

I am trying to figure out whether replication plugin is configured correctly (- I guess something is wrong).

I have (in vmail.example.com dovecot.conf):

dsync_remote_cmd = ssh -l root vmail1.example.com doveadm dsync-server -u%u

plugin { mail_replica = remote:vmail@vmail1.example.com }

The question here is, in:

mail_replica = remote:vmail@vmail1.example.com

the reference: "vmail@" refers to the virtual user under whom accounts live in the remote system (which I have assumed), or something else?

Also, in the aggregator service, is there something wrong?

service aggregator { fifo_listener replication-notify-fifo { user = vmail } unix_listener replication-notify { user = vmail } }

Note that I am not using Director.

Follows the whole configuration on the main master, for your reference (I've only changed the true domain name). Dovecot conf on the mirror server is exactly the same without the replication bits.

Please advise.

Thanks, Nick

====================================================================== # 2.2.12: dovecot.conf

protocols = imap pop3

login_greeting = Org POP/IMAP Srv XAPITI XPICTOY

mail_location = maildir:~/Maildir/ mail_gid = 500 mail_uid = 500

auth_mechanisms = plain login auth_username_format = %Lu

auth_verbose = yes auth_debug = no

disable_plaintext_auth = no

mail_plugins = quota notify replication

protocol imap { imap_client_workarounds = "delay-newmail" mail_plugins = quota imap_quota }

protocol pop3 { mail_max_userip_connections = 3 mail_plugins = quota pop3_client_workarounds = outlook-no-nuls oe-ns-eoh pop3_uidl_format = %08Xu%08Xv }

protocol lda { auth_socket_path = /var/run/dovecot/auth-master info_log_path = log_path = mail_plugins = quota postmaster_address = sysadmin@example.com sendmail_path = /usr/lib/sendmail }

userdb { args = /etc/dovecot/dovecot-usrdb-ldap.conf driver = ldap }

passdb { args = /etc/dovecot/dovecot-passdb-ldap.conf driver = ldap }

dsync_remote_cmd = ssh -l root vmail1.example.com doveadm dsync-server -u%u

plugin { mail_replica = remote:vmail@vmail1.example.com }

plugin { quota = maildir:User quota quota_rule = *:storage=4G quota_rule2 = Trash:storage=+3%% quota_warning = storage=75%% quota-warning 75 %u quota_warning2 = storage=90%% quota-warning 90 %u }

service quota-warning { executable = script /opt/mail1.sh user = vmail unix_listener quota-warning { user = vmail } }

service aggregator { fifo_listener replication-notify-fifo { user = vmail } unix_listener replication-notify { user = vmail } }

service replicator { unix_listener replicator-doveadm { mode = 0600 } }

service auth { unix_listener /var/spool/postfix/private/auth { group = postfix mode = 0660 user = postfix } unix_listener auth-master { group = vmail mode = 0660 user = vmail } user = root }

service imap-login { service_count = 1 vsz_limit = 64 M }

service pop3-login { service_count = 1 vsz_limit = 64 M }

service replicator { process_min_avail = 1 }

ssl_ca =

syslog_facility = local1

On Fri, 2014-03-28 at 11:58 +0200, Nikolaos Milas wrote:

Question 2a: What do options "-d -N -l 30 -U" signify in "replication_dsync_parameters = -d -N -l 30 -U"?

I'd also be interested to know the answer to this part. I found mention of the '-f' option, and adding '-f' to that list appears to have fixed a replication race condition I was having, but I can't find out a note of what it does.

Simon.

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