dsync replication quota2 issue

[George Kontostanos]

Hello list,

We are testing a configuration with 2 mail servers using dsync replication
(dovecot 2.2.25 ). Everything works fine except the quota2 which is
calculated wrong only on one server. Quota2 resides on  different databases
since each server needs to update it.

The problem: The local server always updates quota2 twice on each message
it receives. This happens only on one server. Updates run fine on the
second.

SQL Debug:

 Query UPDATE quota2 SET bytes=bytes+2108,messages=messages+1 WHERE
username = 'user at domain.org'
 Query UPDATE quota2 SET bytes=bytes+2108,messages=messages+1 WHERE
username = 'user at domain.org'

The result  on the server that runs fine

mysql> select * from quota2;
+----------------------------+---------+----------+
| username                   | bytes   | messages |
+----------------------------+---------+----------+
|
| user at domain.org | 2917126 |       17 |

The result on  the server that has the problem:

mysql> select * from quota2;
+----------------------------+---------+----------+
| username                   | bytes   | messages |
+----------------------------+---------+----------+
|
| user at domain.org | 2920317 |       19 |

dovecot -n is the same on both:

root at mx2:/var/log # dovecot -n
# 2.2.25 (7be1766): /usr/local/etc/dovecot/dovecot.conf
# Pigeonhole version 0.4.15 (97b3da0)
# OS: FreeBSD 10.3-RELEASE amd64  ufs
auth_mechanisms = plain login
auth_verbose = yes
default_client_limit = 2560
default_process_limit = 512
dict {
  acl = mysql:/usr/local/etc/dovecot/dovecot-dict-shares-sql.conf.ext
  quota = mysql:/usr/local/etc/dovecot/dovecot-dict-quota-sql.conf.ext
}
doveadm_password =  # hidden, use -P to show it
doveadm_port = 12345
log_path = /var/log/dovecot.log
mail_debug = yes
mail_home = /usr/local/vhosts/mail/%d/%n
mail_location = maildir:/usr/local/vhosts/mail/%d/%n:LAYOUT=fs
mail_max_userip_connections = 70
mail_plugins = quota acl notify replication
mail_privileged_group = vmail
mail_shared_explicit_inbox = yes
managesieve_notify_capability = mailto
managesieve_sieve_capability = fileinto reject envelope encoded-character
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copy include variables body enotify environment mailbox date index ihave
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mbox_write_locks = fcntl
namespace {
  inbox = no
  list = children
  location =
maildir:/usr/local/vhosts/mail/%%d/%%n:LAYOUT=fs:INDEX=/usr/local/vhosts/indexes/%d/%n/shared/%%u:INDEXPVT=/usr/local/vhosts/indexes/%d/%n/shared/%%u
  prefix = shared/%%d/%%n/
  separator = /
  subscriptions = no
  type = shared
}
namespace inbox {
  inbox = yes
  list = yes
  location =
  mailbox Drafts {
    auto = subscribe
    special_use = \Drafts
  }
  mailbox Junk {
    auto = subscribe
    special_use = \Junk
  }
  mailbox Sent {
    auto = subscribe
    special_use = \Sent
  }
  mailbox Trash {
    auto = subscribe
    special_use = \Trash
  }
  prefix =
  separator = /
  type = private
}
passdb {
  args = /usr/local/etc/dovecot/dovecot-sql.conf.ext
  driver = sql
}
plugin {
  acl = vfile
  acl_shared_dict = proxy::acl
  mail_replica = tcp:beta.sophimail.com:12345
  quota = dict:User quota::proxy::quota
  quota_rule2 = Trash:storage=+100M
  sieve = /usr/local/vhosts/mail/%d/%n/.dovecot.sieve
  sieve_before = /usr/local/vhosts/sieve/before.d/
  sieve_dir = /usr/local/vhosts/mail/%d/%n
  sieve_global_dir = /usr/local/vhosts/sieve/%d
  sieve_global_path = /usr/local/vhosts/sieve/%d/default.sieve
}
protocols = imap lmtp sieve sieve
service aggregator {
  fifo_listener replication-notify-fifo {
    mode = 0666
    user = vmail
  }
  unix_listener replication-notify {
    mode = 0666
    user = vmail
  }
}
service auth-worker {
  user = vmail
}
service auth {
  unix_listener /var/spool/postfix/private/auth {
    group = postfix
    mode = 0666
    user = postfix
  }
  unix_listener auth-userdb {
    mode = 0600
    user = vmail
  }
  user = dovecot
}
service config {
  unix_listener config {
    user = vmail
  }
}
service dict {
  unix_listener dict {
    mode = 0600
    user = vmail
  }
}
service doveadm {
  inet_listener {
    port = 12345
  }
  user = vmail
}
service imap-login {
  inet_listener imap {
    port = 143
  }
}
service lmtp {
  unix_listener /var/spool/postfix/private/dovecot-lmtp {
    group = postfix
    mode = 0600
    user = postfix
  }
}
service managesieve-login {
  inet_listener sieve {
    port = 4190
  }
  process_min_avail = 0
  service_count = 1
  vsz_limit = 64 M
}
service replicator {
  unix_listener replicator-doveadm {
    mode = 0666
  }
}
ssl_cert = </usr/local/etc/postfix/keys/domain.com.crt
ssl_key = </usr/local/etc/postfix/keys/domain.com.key
userdb {
  args = /usr/local/etc/dovecot/dovecot-sql.conf.ext
  driver = sql
}
protocol lmtp {
  mail_plugins = quota acl notify replication sieve notify replication
}
protocol imap {
  imap_client_workarounds = tb-extra-mailbox-sep
  mail_plugins = quota acl notify replication imap_quota imap_acl notify
replication
}
protocol lda {
  mail_plugins = quota acl notify replication sieve acl
  postmaster_address = root
}
local 192.168.3.6 {
  protocol imap {
    ssl_cert = </usr/local/etc/postfix/keys/domain.com.crt
    ssl_key = </usr/local/etc/postfix/keys/domain.com.key
  }
}

dovecot-dict-quota-sql.conf.ext:

connect = host=127.0.0.1 dbname=quota user=mailadmin password=**********
map {
  pattern = priv/quota/storage
  table = quota2
  username_field = username
  value_field = bytes
}
map {
  pattern = priv/quota/messages
  table = quota2
  username_field = username
  value_field = messages
}

Sorry for the lengthy email, any help is very much appreciated.


-- 
George Kontostanos
---