Hi All,

I have tried the below command to migrate the data from the old server(dovecot version: 2.0.9) to new servers(dovecot version: 2.2.36 (1f10bfa63)). But it's throwing an error.

old server name: production1 new server1 name: production2 (for HA/Replication) new server2 name: production3 (for HA/Replication)

I have configured replication between production2 and production3, which is working fine.

The issue is, the below command I am trying is from production2 server and trying to take the data from production1 server.

[root@production2 log]# doveadm backup -a All -R -u kishore@test.testorg.com imapc: dsync(kishore@test.testorg.com): Info: imapc(production1.testorg.com:143): Connected to xxx.xxx.xxx.xxx:143 (local yyy.yyy.yyy.yyy:45992) dsync(kishore@test.testorg.com): Warning: imapc(production1.testorg.com:143): connect(xxx.xxx.xxx.xxx, 143) timed out after 30 seconds - reconnecting (delay 0 ms) dsync(kishore@test.testorg.com): Info: imapc(production1.testorg.com:143): Connected to xxx.xxx.xxx.xxx:143 (local yyy.yyy.yyy.yyy:46014) dsync(kishore@test.testorg.com): Error: imapc(production1.testorg.com:143): connect(xxx.xxx.xxx.xxx, 143) timed out after 30 seconds - disconnecting dsync(kishore@test.testorg.com): Error: User initialization failed: imapc: Login to production1.testorg.com failed: Disconnected from server [root@production2 log]#

I looked into the production1 (old server) logs. I see the below error.

=============== Jul 28 11:14:23 auth: Fatal: Master passdb can't have pass=yes if there are no passdbs Jul 28 11:14:23 master: Error: service(auth): command startup failed, throttling

after the above error, I have commented "pass=yes" in production1 (old server) server, then I see the below error.

================ Jul 28 11:17:10 auth: Fatal: No passdbs specified in configuration file. PLAIN mechanism needs one Jul 28 11:17:10 master: Error: service(auth): command startup failed, throttling

Please suggest me on fixing the issue.

Adding the dovecot.conf configuration from old and new servers:

========================================= My old server dovecot.conf (production1):

disable_plaintext_auth = no

listen = * log_path = /var/log/dovecot.log mail_location = maildir:/z1dev/mail/virtual/%d/%n/Maildir/ passdb { args = /etc/dovecot/passwd driver = passwd-file master = yes pass = yes } pop3_uidl_format = %g protocols = pop3 imap ssl = yes ssl_cert =

userdb { args = uid=vmail gid=vmail home=/z1dev/mail/virtual/%d/%n driver = static } mail_debug = no verbose_ssl = no

========================================= My New server dovecot.conf(production2):

disable_plaintext_auth = no

listen = * log_path = /var/log/dovecot.log

mail_location = maildir:/z1devenv/mail/virtual/%d/%n/Maildir/

passdb { args = /etc/dovecot/passwd driver = passwd-file }

pop3_uidl_format = %g protocols = pop3 imap

ssl = yes ssl_cert =

userdb { args = uid=vmail gid=vmail home=/z1devenv/mail/virtual/%d/%n driver = static }

mail_debug = yes verbose_ssl = no

# Enable the replication plugin globally mail_plugins = $mail_plugins notify replication

service replicator { process_min_avail = 1 }

dsync_remote_cmd = ssh -l%{login} %{host} doveadm dsync-server -u%u plugin { mail_replica = remote:vmail@production3.testorg.com }

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

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

replication_max_conns = 10

imapc_host = production1.testorg.com imapc_password = vmail imapc_master_user = vmail imapc_user = %u

===================================

Please let me know if you need any other details.

Thanks, Kishore Potnuru