Dovecot 2.2.13 error message

Albert Whale
Fri, 19 Oct 2018 13:47:43 -0000

Yes, there is currently concurrent usage because the Mail spool is NFS
Mounted.



Here is the current configuration:



dovecot -n

# 2.1.15: /etc/dovecot/dovecot.conf

# OS: Linux 3.10.54-server-2.mga3 i686 Mageia 3

base_dir = /var/run/dovecot/

disable_plaintext_auth = no

lock_method = dotlock

login_greeting = SpamZapper Email ready.

login_log_format_elements = user=<%u> method=%m rip=%r lip=%l %c

mail_debug = yes

mail_fsync = always

mail_location = maildir:~/Maildir

mail_nfs_index = yes

mail_nfs_storage = yes

mail_privileged_group = mail

mbox_lock_timeout = 15 mins

mmap_disable = yes

passdb {

  driver = pam

}

protocols = imap pop3

service anvil {

  client_limit = 1000

  process_limit = 1

}

service auth {

  user = root

}

service imap-login {

  chroot = login

  client_limit = 10

  user = dovecot

  vsz_limit = 256 M

}

service pop3-login {

  chroot = login

  client_limit = 1024

  user = dovecot

}

ssl = no

syslog_facility = local2

userdb {

  driver = passwd

}

verbose_proctitle = yes

protocol pop3 {

  mail_max_userip_connections = 20

  pop3_logout_format = top=%t/%p, retr=%r/%b, del=%d/%m, size=%s

  pop3_uidl_format = %08Xv%08Xu

}

protocol lda {

  postmaster_address = postmaster at example.com

}

protocol imap {

  mail_max_userip_connections = 30

}





For the time being, I have isolated usage of POP3 connections on a single
Servers, however IMAP is especially problematic.



From: Aki Tuomi [mailto:aki.tuomi at open-xchange.com]
Sent: Friday, October 19, 2018 2:51 AM
To: Albert Whale <Albert.Whale at IT-Security-inc.com>; dovecot at
dovecot.org
Subject: Re: Dovecot 2.2.13 error message





On 18.10.2018 15.15, Albert Whale wrote:

In attempting to reactivate my IMAP communications with my Email Spool (NFS
Mounted), I have gotten the following while attempting to download the
Emails via POP3.



Oct 18 08:00:45 ns4 dovecot: pop3-login: Login: user=<aewhale>,
method=PLAIN, rip=74.109.213.194, lip=66.207.133.232

Oct 18 08:02:40 ns4 dovecot: pop3(aewhale): Error: Timeout (180s) while
waiting for dotlock for transaction log file
/home/aewhale/Maildir/dovecot.index.log

Oct 18 08:02:40 ns4 dovecot: pop3(aewhale): Disconnected: Storage error
during logout. top=0/0, retr=11511/1566975544, del=11511/11511,
size=1566691807

Oct 18 08:02:58 ns4 dovecot: pop3(aewhale): Connection closed top=0/0,
retr=0/0, del=0/11520, size=1566929900



This is significantly more information than what I can receive from 2.1.15,
but still does not resolve the communications issues.



Any help is certainly appreciated.





--

Albert E. Whale, CEH CHS CISA CISSP



Hi!

Seems something is locking the index. Do you have concurrent usage between
two or more nodes for same user?

Aki

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