Did you check what process the locking PID was? Aki
> On 25/01/2022 12:20 Claudio Corvino <ccorv...@trustitalia.it> wrote: > > > Hi, > we have the same issue and the same configuration except for Dovecot version, > ours is the latest into Dovecot repo; in addition we do not have DNS round > robin. > Does anybody have a solution? > > Kind regards > On 07/09/20 15:53, Daniel Botting wrote: > > > Dear Sirs, > > Further to my last email have any list members seen this before and are > > able to offer advice on how to resolve this please. > > I should note as well that we are running Dovecot from the upstream Debian > > packages at https://repo.dovecot.org/ce-2.3-latest/debian/buster . > > > > Kind regards > > Daniel > > > > > > > > -------- Forwarded Message -------- > > Subject: Dsync replication - delayed replication (Sync lock) > > Date: Tue, 1 Sep 2020 16:17:15 +0100 > > From: Daniel Botting <daniel.bott...@codethink.co.uk> > > To: dovecot@dovecot.org > > > > > > > > Hi, > > Our setup: > > Two Debian 10 machines that are setup to replicate mail between them, we > > have round robin DNS setup so a user can connect to either server. > > > > What should happen: > > Mail is delivered to either server and replicated across straight away to > > their mailbox on the other server so it does not matter which one they are > > connected to they will receive it fairly soon after delivery. > > What actually happens: > > In some instances the user will experience a delayed receipt of messages if > > they are not connected to the server that the message is initially > > delivered to, sometimes the delay is 5/10 minutes, we had a recent support > > ticket submitted where it was over an hour. > > Error message seen in mail.err: > > > > Sep 1 10:16:15 <host name> dovecot: > > dsync-local(<username>)<WELSGEERTl8FEAAAZJ7A9A>: Error: Couldn't lock > > /path/to/mailbox/.dovecot-sync.lock: > > fcntl(/path/to/mailbox/.dovecot-sync.lock, write-lock, F_SETLKW) locking > > failed: Timed out after 30 seconds (WRITE lock held by pid 3697) > > Process 3697 is dovecot/doveadm-server. > > > > Doveconf -n output: > > # 2.3.10.1 (a3d0e1171): /etc/dovecot/dovecot.conf > > # Pigeonhole version 0.5.10 (67bf5bd7) > > # OS: Linux 4.19.0-10-amd64 x86_64 Debian 10.5 > > # Hostname: <server hostname> > > auth_verbose = yes > > default_vsz_limit = 0 > > doveadm_password = # hidden, use -P to show it > > first_valid_gid = 8 > > first_valid_uid = 8 > > last_valid_gid = 8 > > last_valid_uid = 8 > > lda_mailbox_autocreate = yes > > lda_mailbox_autosubscribe = yes > > mail_gid = 8 > > mail_location = maildir:~/Maildir > > mail_plugins = " notify replication" > > mail_uid = 8 > > managesieve_notify_capability = mailto > > managesieve_sieve_capability = fileinto reject envelope encoded-character > > vacation subaddress comparator-i;ascii-numeric relational regex im > > ap4flags copy include variables body enotify environment mailbox date > > index ihave duplicate mime foreverypart extracttext editheader imapfla > > gs > > 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-ldap.conf.ext > > driver = ldap > > } > > plugin { > > mail_replica = tcps:<server being replicated to>:<port being used> > > sieve = ~/.dovecot.sieve > > sieve_dir = ~/sieve > > sieve_extensions = +editheader +imapflags > > } > > postmaster_address = postmaster@<domain address> > > protocols = " imap sieve pop3" > > replication_max_conns = 12 > > service aggregator { > > fifo_listener replication-notify-fifo { > > user = mail > > } > > unix_listener replication-notify { > > user = mail > > } > > } > > service auth { > > unix_listener /var/run/dovecot-exim-bridge { > > mode = 0660 > > user = Debian-exim > > } > > } > > service doveadm { > > inet_listener { > > port = <port being used for replication> > > ssl = yes > > } > > } > > service imap-login { > > inet_listener imap { > > port = 143 > > } > > } > > inet_listener imaps { > > port = 993 > > ssl = yes > > } > > process_limit = 512 > > process_min_avail = 4 > > service_count = 1 > > } > > service imap { > > process_limit = 1024 > > } > > service managesieve-login { > > inet_listener sieve { > > port = <sieve port> > > } > > process_min_avail = 1 > > service_count = 8 > > vsz_limit = 256 M > > } > > service managesieve { > > process_limit = 1024 > > } > > service replicator { > > process_min_avail = 1 > > unix_listener replicator-doveadm { > > mode = 0666 > > } > > } > > ssl = required > > ssl_cert = </path/to/ssl/cert/fullchain.pem > > ssl_cipher_list = ALL:!LOW:!SSLv2:!EXP:!aNULL > > ssl_client_ca_dir = /etc/ssl/certs > > ssl_key = # hidden, use -P to show it > > ssl_min_protocol = TLSv1.2 > > userdb { > > args = /etc/dovecot/dovecot-ldap.conf.ext > > driver = ldap > > override_fields = home=/var/mail/%u uid=mail gid=mail > > } > > protocol lda { > > mail_plugins = " notify replication sieve" > > } > > protocol imap { > > mail_max_userip_connections = 32 > > mail_plugins = " notify replication" > > } > > protocol sieve { > > mail_max_userip_connections = 10 > > managesieve_logout_format = bytes=%i/%o > > managesieve_max_line_length = 65536 > > } > > > > > > Kind regards > > Daniel
